HP (Hewlett-Packard) XP20000 manual

HP S to r age W or ks XP2 4 000/XP20000 Snap shot U se r Guide Abstract This gui de explains ho w to use HP St orage W o rks XP Snapshot S oftware t o creat e space -eff ici ent point-in- time copie s of data volume s on an HP Stor age W orks XP2 4000/XP20000 st orage s ystem . T opic s include cr eating, monitor ing, and tr oubleshoo ting snapshot[...]

© Cop yr ight 200 7 , 20 1 1 Hew lett -P ack ard De velopment C ompany , L.P . Conf idential com puter softwar e. V alid license fr om HP requir ed for pos session , use or cop ying . Consist ent with F AR 1 2 .2 1 1 and 1 2 .2 1 2 , Commer cial Compu ter Softwar e, C omputer So ft w are Doc umentation , and T echnical Data f or Commer ci al Items[...]

C ont ents 1 Ov ervi ew o f HP St or age W orks XP Sna pshot S oftwar e......................................6 XP Snapsh ot............................................................................................................................6 F eatur es ..........................................................................................[...]

Installing and U ninstalling XP Snapsh ot.....................................................................................42 Installing XP Sna pshot........................................................................................................42 Uninst alling XP Snapshot..................................................................[...]

Subs cr iption se r v ice..........................................................................................................116 Doc umentatio n Feedbac k..................................................................................................116 R elated infor mation...................................................................[...]

1 Ov erv ie w of HP S tor age W or ks XP Snap shot S oft w ar e This c hapter pr ov ides an o verv iew o f XP Snapshot and de scr ibes the f eatures and be nefits o f XP Snapsh ot. • “XP Snapsh ot” (page 6) • “F eatur es ” (page 6) • “Benef its ” (page 6) • “Diffe ren tiation f ro m HP Stor age W orks XP Busine ss Cop y Softw [...]

• Impr o ves oper ational eff ic iency b y allow ing multiple pr ocesse s to run in par allel w ith access to the same inf ormati on. • Allo w s disk space to be used e ffi ci ently thr ough vo lume snapshots r ather than full-cop y clones , w hich he lps maximi z e disk space . Diff er enti ation f r om HP Sto r age W orks XP B usines s Cop y [...]

2 A bout XP Sna psho t Oper atio ns This c hapter de scr ibes the v olumes us ed by XP Snapsh ot and the functi ons of XP Snap shot . • “XP Snapsh ot Compo nents ” (page 8) • “XP Snapsh ot Oper ations ” (page 9) • “Statu s of the XP Snapsh ot P airs ” (page 14) • “Cop y Thr eshold Optio n ” (page 25) • “Inter opera bilit[...]

XP Busine ss Cop y licens e capac it y inc ludes: • XP Snapsh ot P -V OLs • XP Snapsh ot pool-V OLs • XP Busine ss Cop y P - V OL s • XP Busine ss Cop y S - V OL s • XP Busine ss Cop y r eserv ed volumes The se vo lumes ar e called used v olumes . When de termining ho w much li cense capac it y to pur chase , ensur e that ther e w ill be [...]

In F igur e 2 (page 9) , Data A is sto red in s ome part of the P - VOL o f an XP Snapshot pair . Whe n the hos t req uests an update o f Data A to Data B, XP Sna pshot w ill copy Data A t o the pool volume in the pool bef or e the P - VOL is u pdated. A fter the copy oper ation of Data A has co mpleted , Data B w ill be wr itten to the part whe re[...]

Y ou need to c reate a poo l when y ou use XP Snap shot . P ool- VOLs r egister ed in a pool can be added but cannot be de leted. In additi on, all sna pshot data in the pool m ust be delet ed to delete the pool itself . W ARN ING! T he capacity of a poo l is equal to the total ca pacity of the pool- VOLs r egister ed in the pool . The st atus of t[...]

Cr eatio n of an XP Snapsh ot P air An XP Snap shot pair use s a V- VOL as its S- VOL . The re for e , yo u need to cr eate a V -V OL befo re cr eating an XP Snapshot pair . In an XP Snap shot pair , up to 64 S-V OL s can be spec ified f or a P -V OL. CA UTION: When y ou cr eate an XP Snapsh ot pair , you dec ide whi ch pool w ill be used b y the p[...]

Figur e 4 Overvie w of Storing XP Snapshot Data by a Consistenc y Group When an XP2 4000/XP20000 Disk Ar ra y accepts the command fr om RAID Manager , whi ch r equests s toring the data b y a consistenc y gro up ( 1 in Fi gure 4 (page 13) ), all status o f the XP Snapsh ot pairs in the cor res ponding consiste ncy gr oup w ill change to P SU S (2 i[...]

• Delete the XP Snap shot pair itself . • Delete onl y the snapsho t data. When an XP Sna pshot pair is deleted , not only is the snap shot data sto red in the pool dele ted, but also the r elationship betw een the P - VOL and the S- VOL w ill be releas ed. If onl y the snapsho t data is deleted , the relati onship between the P - V OL and the [...]

Figur e 5 XP Snapshot P air Status T ransition 1 . If a v olume is not assigned t o an XP Snapshot pair , its statu s is SMPL. 2. Is sue the paircreate command on the SMPL v olume to c reat e an XP Snapshot pair . When y ou cr eate the f irst pair f or the P - V OL, the pair statu s changes t o COP Y, and then the pair statu s changes to P AIR whe [...]

the pair statu s changes to C OP Y(R S -R) . When the oper ation complet es, the pair st atus change s to P AIR. 6. A pool can co ntain onl y a predef ined amount of data . If the total capac it y of the sna pshot data in the pool e xceeds the poo l capac it y , the pair status c hanges to P SUE. T he pair status also c hanges to P SUE w hen a fail[...]

T abl e 3 P air Statuses and the Results of the RAI D Manager Commands (contin ued) RAI D Manager Command P air Status pairsplit -E pairsplit -S pairres ync -restor e pairres ync pairsplit paircreate −split paircreate No Y es Y es Y es NOP NOP No PS US / PFUS No NOP No No No No No SMPL(P D) No No NOP NOP No No NOP COP Y(RS) No No NOP NOP No No NO[...]

T abl e 4 S SBs and Causes of Error Issued Upon R ejection of R AID Manag er Commands (continued) Cause of Err or RAI D Manager Command SSB When attempting to cr eate multiple XP Snapsho t pairs by spec if y ing multiple S - V OL s f or one P -V OL, y ou specif ied a pool ID that wa s differ ent fr om the one being us ed by e xisting pair s. As a r[...]

T abl e 4 S SBs and Causes of Error Issued Upon R ejection of R AID Manag er Commands (continued) Cause of Err or RAI D Manager Command SSB Becaus e either XP Snapsho t or XP Busines s Cop y is not installed , the command ends abnor mally . pair cr eate pairsplit pairr esy nc pairr es ync -r estor e 9 7 2 1 Becaus e no additional shar ed memory (FC[...]

T abl e 4 S SBs and Causes of Error Issued Upon R ejection of R AID Manag er Commands (continued) Cause of Err or RAI D Manager Command SSB When the XP Snap shot P -V OL and XP Con tinuous Acce ss Journal P -V OL shar e the vo lume, the statu s of the XP Con tinuous Acce ss Journal pair is other than P SU S or PS UE . Ther efor e, the XP Snapsho t [...]

T abl e 4 S SBs and Causes of Error Issued Upon R ejection of R AID Manag er Commands (continued) Cause of Err or RAI D Manager Command SSB Becaus e you spec ified a pool- V OL as the XP Snapsho t S -V OL, the pair cannot be cr eated . pair cr eate 9 7 46 Becaus e you spec ified the XP Con tinuous Acce ss P -V OL as the XP Snapsho t S -V OL, the XP[...]

T abl e 4 S SBs and Causes of Error Issued Upon R ejection of R AID Manag er Commands (continued) Cause of Err or RAI D Manager Command SSB Becaus e you spec ified the XP A uto L UN sour ce volume a s the XP Snapshot P -V OL, the command ends abn ormally . F or infor mation on using XP A uto L UN, contac t HP technical su pport (see “Con tacting [...]

T abl e 4 S SBs and Causes of Error Issued Upon R ejection of R AID Manag er Commands (continued) Cause of Err or RAI D Manager Command SSB When XP Snap shot P -V OL and XP Con tinuous Acce ss S - VOL shar e the vo lume, the statu s of the XP Contin uous Acces s pair is COP Y . Ther efor e, the snapsho t data cannot be stor ed. pairr es ync 9 7 6e [...]

T abl e 4 S SBs and Causes of Error Issued Upon R ejection of R AID Manag er Commands (continued) Cause of Err or RAI D Manager Command SSB When the XP Snap shot P -V OL and XP Busines s Cop y P- VOL shar e the volume , the XP Busine ss Cop y pair was in the pr ocess of r es ynchr oniz ation. T her efor e, the command ends abno rmally . pair cr eat[...]

T abl e 4 S SBs and Causes of Error Issued Upon R ejection of R AID Manag er Commands (continued) Cause of Err or RAI D Manager Command SSB Becaus e one of the follo w ing cases happened , the XP Snapshot pair cannot be cr eated b y specify ing the consiste ncy number . • The s pecif ied consistenc y grou p number is in us e for XP Bu siness Cop [...]

The C opy T hr eshold opti on is effec tiv e only w hen the load of the s tor age sy stem is hea vy . When the Cop y Thr eshold opti on is in eff ect , all the copy pr ocessing b y the res tor e operati on stop s. F or info rmation about the s etting of the Cop y Thr eshold optio n, call HP tec hnical suppo r t . Cop y oper ations that ar e stopped[...]

• Y ou need Data R etentio n Utilit y to s et the Read Onl y attribut e, the Pr otect attribu te, o r S -V OL Disable . Fo r details, s ee the HP Stor age W orks XP2 4000/XP20000 Data R etenti on Utility User Guide . • Y ou need RAID Manager to set the Z er o Read Ca pacity attribu te or the Inv isible at tr ibute . F or details , see the HP St[...]

(page 29) sho w the r elationship betw een the XP Snapsh ot pair status and XP Bu siness C opy oper ations f or shar ed volume s. F or detailed inf ormati on about XP Bu siness C opy pair st atus and oper ations , see the HP Sto rage W orks XP2 4000/XP20000 Busine ss Cop y Softw are Us er Guide . • Becaus e the XP Snapshot S-V OL uses the data in[...]

T abl e 8 XP Business Cop y Operations f or Shared XP Snapshot P - VOL/XP Business Cop y P -V OL XP Snapshot P air Status XP Business Copy Oper ations PSUE COP Y (RS-R) COP Y (RS) SMPL (PD) PSU S P AIR COP Y Y es No Y es Y es Y es Y es Y es Creating pairs ( paircreate ) Y es No Y es Y es Y es Y es Y es Creating and splitting pairs ( paircreate − [...]

XP C ontinuo us Acce ss or XP C ontinuo us Acce ss Jour nal “XP Snapsh ot Operati ons fo r Shared XP Snap shot P -V OL/XP Continu ous Acces s or XP Contin uous Acces s Journal P - VOL ” (page 30) and “XP Snapshot Ope rati ons for Shar ed XP Snapshot P -V OL/XP Con tinuous A ccess or XP C ontinuo us Acces s Journal S-V OL ” (page 30) show th[...]

T abl e 1 1 XP Snapshot Oper ations for Shared XP Snapshot P - V OL/XP Continuous Access or XP Continuous Access Journal S- V OL (continued) XP Continuous Access / XP Continuous Access Jour nal P air Status XP Snapshot Operations Deleting Suspending S SW S 1 PSUE PSU S P AIR COP Y Y es Y es Y es Y es Y es Y es Y es Deleting snapsh ot data ( pairres[...]

T abl e 1 3 XP Continuous Access/XP Continuous Acces s Journal Operations for Shar ed XP Snapshot P -V OL/XP Continuous Access or XP Continuous Access Journal S - V OL (continued) XP Snapshot P air Status XP Continuous Access / XP Continuous Access Journal Operations P SUE COPY (RS-R) COP Y (RS) SMPL (PD) PSU S P AIR COPY Y es Y es Y es Y es Y es Y[...]

3 Pr epar ing f or XP Snap shot Oper ati ons This c hapter de scr ibes the r equir ements f or using XP Snap shot , the installation pr ocedure f or XP Snapsh ot, and calc ulation of the numbe r of pairs that XP Snap shot can cr eate. R ead this chapt er bef or e you s tart the operati on of XP Snapsh ot. • “S y stem R equir ements ” (page 33[...]

T abl e 1 5 S - VOL Requir ements Requirement Item V -V OL Y ou cannot spec if y the f ollow ing vo lumes as XP Snapshot S-V OL s . • V olumes used as S-V OL s of XP Sna pshot pairs • V olumes used b y a pair or migr ation plan of anothe r progr am produc t NO TE: A L USE S - V OL must be pair ed with a P -V OL of the same si ze and the s ame s[...]

T abl e 1 6 P ool-V OL Requirements (continued) Requirement Item 8 , 1 92 Ho we ver , the maximum numbe r of pool-V OLs that can be register ed in each pool is 1 0 2 4. That is , you can c reat e up to 1 28 pools in one stor age sy stem. In addition , the volume alr eady regis tered a s a pool-V OL in a pool cannot be r egister ed in another pool. [...]

Calc ulating the Max imum Number of P air s The n umber of XP Snapsh ot pairs that can be c reated f or a sto rage s y stem depends on the n umber of diff ere ntial table s, the capac ity of shar ed memory for the V - VOL manage ment ar ea, or the number o f pair tables . Calc ulate the number of XP Sna pshot pairs that can be c reat ed, f irst b y[...]

2 6, 1 7 6 ÷ 4 = 6 ,544 Th us, the max imum number of XP Sna pshot pairs that can be c reat ed is 6,5 44. Calc ulating the Number of XP Snapsho t P airs b y Using the Shar ed Memory Capac it y f or the Virtual V olume Management Ar ea The V -V OL management ar ea consists of the f ollo w ing three ele ments: • P ool assoc iation inf ormati on ?[...]

NO TE: Y ou can chec k the capac ity of the shared me mor y of the poo l assoc iati on infor mation and the pool managemen t block in the XP Snap shot w indow . See “XP Sna pshot W indow ” (page 53) . F or the capac it y of the shar ed memory for the w hole V- VOL manage ment ar ea, see “ Additio nal Shar ed Memory for the V -V OL Management [...]

[ {(10 × 1,024 × 1,024) ÷ 524,288} × 524,288] = 31,668,568,064 ÷ 10,485,760 = 3,020 Accor ding to the re sult, the max imum number of XP Snap shot pairs that can be c reat ed is 3, 0 20. If shar ed memory is added to y our stor age s ys tem and y ou kno w the pool capac it y , y ou can r oughly e stimate the capac ity of a P -V OL that can be [...]

P erfo rmance C onsider ations If XP Snapsh ot perfor ms a re stor e oper ation w hen the load of the subs yst em is heavy , it is more lik ely that ho st serv er I/O perfor mance (r esponse) ma y be degr aded. T he Cop y Thr eshold opti on allo ws y ou to effec tiv ely dec r ease the load of the su bs yst em. Note s on Def ining P ool Capac it y T[...]

Note s on Using Exter nal V olumes as P ool- V OLs B y using XP Exter nal Stor age, y ou can connect m ultiple stor age s ys tems to the XP2 4000/20000 Disk Ar ra y single stor age sy stem . In that case , the ori ginal stor age s yst em is called the local stor age s ys tem, and the co nnected sto rage s y stems ar e called e xternal st orage s ys[...]

stor ing of snapshot dat a will no t resume , and the status o f some pairs ma y re main unchanged w hen the pow er supply is s witc hed again. • If inf ormatio n in the shared memo r y is lost afte r sw itching off the po wer su pply The s tor age sy stem has a battery to maintain the inf ormati on in the shared me mor y . Ho we ve r , w hen a c[...]

T o start XP Busine ss Cop y or L UN Expansion (L USE)/Virtual L VI/L UN (VLL) and displa y the windo w: 1 . Display the R emote W eb Console main w indow . F or inf ormatio n about ho w to displa y the Re mote W eb Cons ole main windo w , see the HP Sto rage W orks XP2 4000/XP20000 R emote W eb Cons ole User Gui de . 2 . Cli ck Go and then XP Busi[...]

4 U sing the XP Snap shot GUI XP Snapsh ot infor mation and oper ations ar e pr esented o n Remote W eb Cons ole windo ws that ar e also used f or XP Busine ss Cop y and L UN Expansion (L USE)/Virtual L VI/L UN (VLL) . XP Snapsh ot use s the XP Busines s Cop y P air Operati on, XP B usiness C opy H istory , XP Business C opy XP Sna pshot , L USE/VL[...]

Figur e 6 P air Operation Windo w T abl e 1 9 P air Operation W indow Items Description Item Displa ys the Displa y Filt er dialog box ( “Dis play F ilter Dialog Bo x (XP Snapshot T ab Selected)” (page 68) ) w her e you can filt er the volumes dis played in the v olume list . Display F ilter button Displa ys the ports that ar e defined paths or[...]

T abl e 1 9 P air Operation W indow Items (continued) Description Item Applie s the operati ons display ed in the Prev iew list to the stor age s ystem . If the spec ifi ed operatio ns are appli ed successf ully , the Previe w list w ill be clear ed. If an err or occurs dur ing an oper ation, the f ailed operati on w ill remain in the Pr evie w lis[...]

T abl e 20 V olume List Items (continued) Description Item Displa ys w hen there is no v olume or pair to be displa yed . If y ou see the message in the V olume List , cli ck a differ ent icon in the tr ee on the left ar ea of the P air Operati on w indow . Message Displa ys inf ormation abo ut P -V OL in AAA-BB-CCC(XX:YY :ZZ) for mat. • AAA: The[...]

T abl e 20 V olume List Items (continued) Description Item Displa ys the consist ency gro up number of the XP Snap shot pair . When the consis tency gr oup is not spec ified , dotted lines (- - -) ar e display ed. F or infor mation about w hat will be displa yed fo r an XP Business C opy pair , see the HP Stor age W orks XP2 4000/XP20000 Busines s [...]

T abl e 2 2 Menus of th e V olume List of XP Business Cop y's P air Operation Windo w (In Case an XP Snapshot P air I s Selected) Function Command Opens the Detail dialog bo x ( “Detail Dialog Box f or an XP Snapsh ot P air” (page 92) ). Detail Opens the P airsplit-S dialog bo x ( “P airsplit-S Dialog Bo x” (page 90) ). P airsplit-S Op[...]

Figur e 8 Pre view L ist T abl e 2 3 Pre view L ist Items Description Item Displa ys inf ormation abo ut the P -V OL in AAA-BB-CCC(XX:YY :ZZ) for mat. • AAA: The port ID (c luster and c hannel number ) • BB: The gr oup number of the ho st grou p • CC C: LU n umber • XX:YY :ZZ: LDK C number:CU n umber:LDEV n umber An LDEV numbe r that ends w[...]

T abl e 2 3 Pre view L ist Items (continued) Description Item Displa ys the cache logi cal partition of the P -V OL. CLPR(P) Displa ys the cache logi cal partition of the S-V OL. CLPR(S) Displa ys the code that indicate s the cause of the er ro r . If ther e is no err or , dotted lines (- - -) w ill display . Error Code When y ou select and r ight-[...]

T abl e 2 4 History Windo w Items Description Item Allo ws y ou to r eturn to the pr ev ious page o f the list. T his button is selec table only w hen the number of ope ratio n histor ies in the st orage s ys tem ex ceeds 1 6, 38 4, w hich is the max imum number of hist orie s that can be display ed on one page . The button is gr ay ed-out if the t[...]

T abl e 2 5 XP Snapshot History Reference Codes and M essages (continued) Description Message Code Re stor ation of an XP Snapsh ot pair ended abnormall y . COP Y(RS-R) END ED ABNORMAL 0x203 2 Snapsho t data was delet ed. COP Y(RS) 0x205 1 A failur e occur red and the st atus of the XP Snapsho t pair change s to PS UE . P SUE(AB NORMAL END) 0x20 7 [...]

T abl e 2 6 The XP Snapshot Windo w Display Description Item P ools in the disk stor age sy stem ar e displa yed in the tr ee style . The f ollow ing icons ar e display ed in the tree . • : stor age s ystem • P ool: X : pool in normal s tatus (X indicate s pool ID) • P ool: X : pool wh ose usage r ate e xceeds the thr eshold (X indicate s poo[...]

T abl e 2 6 The XP Snapshot Windo w Display (continued) Description Item X indicate s the capacity of the pool as soc iation inf ormation in use . Y indicate s the maximum po ssible capac it y of the pool assoc iation inf ormation , including the capac it y of the pool assoc iation inf ormation in u se. The max imum pos sible capacity of pool as so[...]

T abl e 2 6 The XP Snapshot Windo w Display (continued) Description Item If y ou select and r ight-clic k the operati ons in the Prev iew list , the menu appears . Delete : Cancels the se lected oper ation and deletes the oper ation fr om the Pre view lis t in the XP Snapshot w indow . Error Detail : Display s the err or message bo x, w hic h displ[...]

T abl e 2 7 P ool Windo w Description Description Item The name o f the progr am produc t that uses pool management capac it y is displa yed . • used Indicate s the capacity (GB) of the pool manageme nt blocks in u se. • total Indicate s the maximum po ssible capac it y (GB) of the pool management bloc ks, inc luding the capacity of the pool ma[...]

T abl e 2 7 P ool Windo w Description (continued) Description Item P ool-V OL list 5 8 Using the XP Snapsh ot GUI[...]

T abl e 2 7 P ool Windo w Description (continued) Description Item Info rmation abou t the pool-V OLs that are r egistered in the pool selec ted in the P ool tree . The f ollow ing items ar e displa yed in the list . • LDK C:CU:LDEV : LDK C number , CU number , and LD EV number of the poo l-V OL An LDEV numbe r that ends with a # indi cates that [...]

T abl e 2 7 P ool Windo w Description (continued) Description Item y ou can add to the pool Adds the se lected volume(s) in the F ree LDEVs list as pool V OL(s) to the pool that yo u selected f rom the P ool tree . Add P ool-V OL button If y ou select a CU n umber fr om the drop-do wn lis t, the vo lumes in the CU will be dis played in the F ree LD[...]

T abl e 2 7 P ool Windo w Description (continued) Description Item Among the v olumes in the CU w hich is se lected fr om the CU drop-do wn list , the volumes that can be s pecif ied as pool- VOLs w ill be display ed. T he follo wing it ems are displa yed in the list . • LDK C:CU:LDEV : LDK C number , CU number , and LD EV number of the v olume A[...]

T abl e 2 7 P ool Windo w Description (continued) Description Item Info rmation abou t the pool that you s elected in the P ool tr ee will be displa yed . The f ollow ing items ar e display ed in the bo x. • P ool I D : number that i dentifi es the pool • Status : statu s of the pool ◦ Normal : pool is in the nor mal status ◦ Blocked : pool[...]

T abl e 2 8 M enus of the P ool T ree Function Menu Opens the Ne w P ool dialog box ( “Ne w P ool Dialog Bo x ” (page 71) ) . Y ou can select this menu co mmand only w hen you r ight-cli ck the XP Snapshot icon . New P ool When y ou ri ght-clic k the XP Snapshot icon: Deletes m ultiple pools at the same time. Y ou can selec t this menu command [...]

V -V OL gr oup , use the V irtual L VI/L UN func tion . T o use the V ir tual L VI/L UN func tion , yo u need a licens e for this f unctio n. F or details about the V ir tual L VI/L UN func tion , see the HP Sto rage W orks XP2 4000/XP20000 V irtual L VI/L UN ( VLL) and V olume Shredder U ser Guide . The V -V OL windo w display s the fo llow ing it[...]

T abl e 2 9 V - VOL W indow Items (continued) Description Item Applie s the operati ons that have bee n performed in the V -V OL windo w to the stor age sy stem . If the specif ied oper ations ar e completed succes sfully , the contents that hav e been display ed in blue italic fon ts in the V- VOL gr oup tr ee or V- V OL list will be dis play ed i[...]

5 P erf or ming XP Sna psho t Oper ati ons This c hapter pr ov ides ins tructi ons fo r perfor ming XP Snapshot oper ations. • “XP Snapsh ot Proce sses ” (page 66) • “Conf iguring the V olume L ist” (page 67) • “Deleting the Settings in Pr ev ie w Lis t” (page 69) • “Cr eating or Deleting P ools ” (page 69) • “Cr eating [...]

Figur e 1 3 Using XP Snapshot T o cr eate the pools and V -V OL s , you need t o use R emote W eb Co nsole . T o cr eate XP Snapsho t pairs and perf orm su bsequent ope rati ons, y ou need to us e the RAI D Manager . When de leting pairs , yo u can also use R emote W eb Console . • Bef or e cr eating a pool , it is requir ed that the virtual v ol[...]

Figur e 1 4 Displa y Filter Dialog Bo x (XP Snapshot Tab Selected) • F or details abo ut the XP Business Copy tab o f the Display F ilter dialog bo x , see the HP Sto rage W orks XP2 4000/XP20000 Busine ss Cop y Softw are Us er Guide . • The f ilter settings ar e only e ffecti v e within the c urr ent oper ations in the XP Bu siness Cop y'[...]

• P air Status bo x The f ollo w ing chec k box es ar e display ed. ◦ XP Business Cop y : Display s or hides the XP Busine ss Cop y pairs. ◦ XP Snapshot : Displa ys o r hides the XP Snapsh ot pairs . If the chec k bo x is not selec ted, all the c heck bo xes in eac h tab w ill be unav ailable . • XP Business Cop y tab This t ab is for XP Bu[...]

1 . Change the mode of the R emote W eb Co nsole to Modify . If the mode is alr eady c hanged to Modify , y ou can skip this step . F or inf ormatio n on ho w to change the mode , see the HP St orage W orks XP2 4000/XP20000 R emote W eb Cons ole User Guide . 2 . R ight-cli ck XP Snapshot in the P ool tree of the P ool w indo w ( “P ool Windo w”[...]

1 0. T o cr eate another pool , repeat S tep 1 and the subs equent step s. Cli ck Appl y . A conf irmatio n message is displa y ed asking if it is OK to apply the s etting to the stor age s ys tem. CA UTION: Y ou cannot delet e the pool-V OLs after yo u add them. So , make sur e that the settings o f the pool-V OLs you ar e going to add ar e ri ght[...]

T o change the thr eshold of the pool: 1 . Change the mode of the R emote W eb Co nsole to Modify . If the mode is alr eady c hanged to Modify , y ou can skip this step . F or inf ormatio n on ho w to change the mode , see the HP St orage W orks XP2 4000/XP20000 R emote W eb Cons ole User Guide . 2 . Selec t and righ t -c lick the poo l who se sett[...]

2 . Selec t and righ t -c lick the poo l you w ant to dele te in the P ool tree of the P ool windo w . A menu is displa yed . If the amount of the pool ca pacity that is us ed is other than z er o (0) GB, the menu w ill not be displa yed . 3 . Selec t the Delete Pool command fr om the menu . A confir mation mes sage is displa yed asking if it is OK[...]

2 . Cli ck Optimiz e in the P ool w indow . A conf irmatio n message is displa y ed asking if it is OK to optimi z e the V- VOL manage ment ar ea or the pool management bloc k. 3 . Cli ck OK . A conf irmatio n message is displa yed asking if it is OK to cance l all the operati ons perfo rmed in the P ool windo w . 4. Cli ck OK . The co nfir mation [...]

gr oups ar e cr eated for XP Ext ernal S tor age, y ou can enter onl y a who le number under 6 3 2 2 1 . • If y ou cr eate multiple V -V OL gro ups at the same time , all V -V OLs that are go ing to be r egister ed in each V -V OL grou p will ha ve the s ame emulation ty pe and capac it y . 8. Cli ck Ne xt . The Cr eate V - VOL w iz ar d dialog b[...]

2 1 . Cli ck Appl y . The conf irmatio n message indi cating if it is OK to apply the s etting to the stor age s ys tem is displa yed . 2 2 . Clic k OK . The conf irmati on message c lose s and the new V -V OL infor mation is applied t o the subs yst em. Figur e 1 7 New V -V OL Group Dialog Bo x The Ne w V- VOL Gr oup dialog bo x display s the foll[...]

Figur e 1 8 Create V - VOL W izar d Dialog Bo x ( 1 ) The Cr eate V -V OL wi z ard di alog box ( 1 ) displa y s the follo w ing items. • V - VOL Gr oup V -V OL gro up ID that you s et in the New V -V OL Gro up dialog bo x is display ed. • Emulation T ype drop-do wn list Y ou can selec t the emulation ty pe of the V -V OL. • Capacity Unit dr o[...]

V -V OLs per V- VOL gr oup . In this case , ( 1 - 1 0) is display ed on the ri ght of the Number of V - VOL te xt box . • Set button Adds the V -V OL(s) to the V- VOL inf ormati on setting list . • Delete button Deletes the s elected V - V OL(s) fr om the V -V OL infor mation setting list . • V -V OL infor mation s etting list (for e xam ple,[...]

Figur e 1 9 Create V - VOL W izar d Dialog Bo x (2) The Cr eate V -V OL wi z ard di alog box ( 2) display s the fo llow ing items. • V -V OL infor mation s etting list (upper r ight ar ea of the dialog bo x) Inf ormatio n about the V -V OL(s) that yo u are go ing to cr eate is displa yed . ◦ No . : number ◦ V - VOL Gr oup : V- VOL gr oup ID ?[...]

list ar e displa yed . Numbers in the uppe r end and the left side indicat e the LDEV number . F or e xample , the LD EV n umber of the cell w hose u pper end is +2 and left side is +1 0 is 1 2 . Gr ay cells indi cate the LDEV number s that are alr eady us ed for other v olumes, w hite cells indicate the unused LDEV numbe rs, and blue cells indi ca[...]

◦ : LDK C number or CU n umber . Indicates that S SID is assi gned to the all boundary ar eas. ◦ : LDK C number or CU n umber . Indicates the boundary ar ea with n o SS ID . ◦ : Indicate s that no S SID is assi gned to the boundary area . • Set SSID list Assi gns SS ID to the boundary ar ea that contains LDEV number s y ou set in this dialo[...]

Figur e 2 1 Create V -V OL Wi zar d Dialog Box (4) The Cr eate V -V OL wi z ard di alog box ( 4) displa ys the f ollo wing it ems. • V - VOL Gr oup dr op-dow n list Y ou can selec t the V- VOL gr oup number of the V -V OL you s et . Note that yo u cannot enter the number . • V -V OL infor mation s etting list (middle of the dialog bo x) Inf orm[...]

Deleting V irtual V olumes and a V ir tual V olume Gr oup T o delete V -V OL(s) and a V - VOL gr oup: 1 . Change the mode of the R emote W eb Co nsole to Modify . If the mode is alread y changed to Modify , you can skip this s tep . F or infor mation on h ow to c hange the mode , see the HP Sto rage W orks XP2 4000/XP20000 R emote W eb Cons ole Use[...]

6. C lick OK . T he Delete V -V OL Grou ps dialog bo x clo ses. A co nfir mation mes sage indicating if it is OK to appl y the setting to the st orage s yst em is display ed. 7 . Clic k OK . The conf irmation mes sage clo ses and the deleti on of the V - VOL gr oups is appli ed to the sub sy stem . If y ou cli ck the Cancel button in this me ssage [...]

• Icons The f ollo w ing icons ar e displa yed in the dialog bo x. ◦ V -V OL gro up ◦ V -V OL gro up (in the pr ocess of be ing deleted) • The P age ar ea display s the number o f the cur ren t page and the follo w ing items ar e used to change page s of the list . ◦ Pre vious button allo ws y ou to displa y the pre vio us 4, 09 6 V- VOL [...]

Y ou can stor e one snapshot dat a at a time by using the pairsplit command , but y ou cannot spec ify the snapshot dat a ID. F or details abo ut the pairsplit command, s ee the HP Stor age W orks XP RAID Manager User Gui de . XP Snapsh ot does not suppo r t Quic k Split mode . If y ou spec ify Q ui ck Split mode , snapshot data w ill not be stor e[...]

Consis tency gr oup: • Y ou cannot spec if y the XP Snap shot pairs in the same co nsistency gr oup if the pairs shar e the same v olume as P -V OL. If y ou spec if y thes e pairs in the same consis tency gr oup , the paircreate command w ill be r ejec ted. • Y ou should no t mix pair s cr eated w ith the At-T ime Snapshot opti on and w ithout [...]

case , find the consist ency gr oup numbe r by sorting the CT G column on the XP Snap shot w indow o r P air Operati on w indow o f XP Busines s Cop y , and cr eate a pair spec ifying the consist ency gr oup number in tentionall y . • Caution for w h en the XP Snapshot pair P -V OL is shared with an XP Continuous Access Software pair or an XP Con[...]

XP Snapsh ot does not suppo r t Quic k Re sy nc mode . If you s pecify Quic k Re sy nc mode , snapshot data w ill not be delet ed ev en if the command ends nor mally . The re for e , ev en if y ou spec ify Quick R esy nc mode, Quic k Re sy nc mode does not t ake e ffect . Deleting XP Snap shot P air s Use the co mmand of the RAID Manager or the P a[...]

Figur e 23 P airsplit- S Dialog Bo x When y ou select an XP Sna pshot pair and displa y the P airsplit-S di alog box , the dialog bo x display s the fo llow ing items. • V olume list Inf ormatio n about the XP Snapsh ot pairs y ou ar e going to delet e is display ed . ◦ P -V OL : Infor mation about the P - V OL is display ed in AAA-BB-CC C(XX:Y[...]

◦ Capacity(MB) : stor age capac ity of the XP Snapsho t pair ◦ CLPR(P) : cache logical partitio n of the P - V OL ◦ CLPR(S) : cache logical partitio n of the S - V OL • OK button Clo ses the P airs plit -S di alog box and displa ys the list of XP Snapsh ot pairs in the Prev iew list . • Cancel button Cancels the ope rati on and clos es th[...]

Figur e 24 Detail Dialog Box f or an XP Snapshot P air The Det ail dialog bo x display s the fo llow ing items. • P -V OL LDK C number , CU number , and LDEV number o f the P - VOL ar e display ed. • Emulation Emulati on t y pe of the P -V OL is display ed. • Capacity(MB) Capac it y of the P - VOL is dis play ed. T he unit is megab ytes (MB).[...]

◦ CLPR(S) : cache logical partitio n (CLPR) of the S-V OL ◦ CT G : consiste ncy gr oup number o f the XP Snapshot pair . When the co nsistency gr oup is not spec ified , dot ted line s (- - -) will a ppear . • Refr esh th e windo w af ter this dialog bo x is closed chec k bo x If y ou select the c heck bo x, the inf ormatio n display ed in XP[...]

info rmation f or the P -V OLs and S - VOL dis play s the path infor mation f or the S - V OLs in AAA-BB-CC C(XX:YY :ZZ) for mat . ◦ AAA: The po r t ID (clu ster name and c hannel number ) ◦ BB: The gr oup number (G-ID) of the h ost gr oup ◦ CC C: L U number ◦ XX: YY : ZZ: LDK C number : CU number : LDEV number An LDEV n umber that ends w i[...]

Figur e 2 6 Information Dialog Bo x The f ollo w ing infor mation w ill be displa yed in the Inf ormati on dialog bo x: • XP Business Cop y pair(s) The n umber of XP Bu siness Cop y pairs w ill be display ed in the for mat XXXX / YYYY . XXXX indicate s the number of XP B usiness C opy pair s, and YYYY indicat es the total numbe r of XP Busine ss [...]

fo r XP Busines s Cop y . Unlimited w ill be display ed w hen ther e is no limit on the licens e capac it y fo r XP Busines s Cop y . • XP Snapshot Used v olume (TB) L icense inf ormati on fo r XP Snapshot w ill be indicated in the f ormat of X( Y) . X indicat es license capac ity used b y XP Snapshot , and Y indicates to tal licens e capacity r [...]

6 . If ther e ar e more than 1 6, 38 4 reco rds o f operati ons, c lic k Next . T he list display s subseque nt r ecords o f oper ations . • If y ou cli ck Pre vious , the list s witc hes to the pr e vi ous page . • If ther e ar e 1 6, 38 4 or fe wer r ecords o f operati ons, y ou cannot cli ck Pr evious and Ne xt . • The s tor age sy stem sa[...]

6 T r oublesh ooting This c hapter pr ov ides tr oubleshooting inf ormati on fo r XP Snapshot . • “Pr ocedure t o Reco ve r a Block ed P ool” (page 101) • “Pr ocedure t o Complet e the P ool-Re lated SIMs ” (page 102) • “T rou bleshooting Whe n Using XP RAID Manager” (page 103) If y ou hav e a pr oblem w ith the Remot e W eb Conso[...]

T abl e 3 2 Tr oubleshooting for XP Snapshot Causes and Solutions Problem Cau ses: • Shar ed memory for the V -V OL management ar ea is not inst alled. • Shar ed memory is not set fo r the V- VOL management ar ea. • Shar ed memory for the differ ential tables is no t installed. Soluti ons: • Call HP tec hnical support and c heck if the shar[...]

T abl e 3 2 Tr oubleshooting for XP Snapshot (continued) Causes and Solutions Problem Cau ses: • Ther e are not en ough differ ential table s to cr eate the pairs . • The conditi ons to cr eate the pair are not f ulfilled . • The v olumes spec ifi ed to cr eate the pair are in SMP L(PD) st atus because the pair is being delet ed. Soluti ons: [...]

T abl e 3 2 Tr oubleshooting for XP Snapshot (continued) Causes and Solutions Problem Cau ses: • Some ports go off line because the acces s to the volume on the othe r port(s) is r ejected . Soluti ons: • W ait for a w hile, then try the oper ation again. • If the applicati on softwar e is installed in the ho st to monitor the v olume, termin[...]

4. Cli ck Appl y . The conf irmatio n message indi cating if it is OK to apply the s etting to the stor age s ys tem is displa yed . 5 . Cli ck OK . T he confir mation mes sage clo ses and the r estor ation of the pools is a pplied to the stor age sy stem . 6 . Y ou can chec k whe ther the pool is r ecov er ed fr om the block ed status in the P ool[...]

T r ouble shooting Whe n Using XP RAI D Manager When an er r or has occ urr ed during an XP Sna pshot P air operati on using RAID Manager , see the log displa yed on the RAID Manager w indo w or the R AID Manager oper ation log file t o see if y ou can iden tif y the cau se of the er ror . T he R AID Manager oper ation log file is s tor ed in the f[...]

T abl e 3 3 Cause of Error and the Result o f R AID Manag er Command (S SB) Cause of Err or RAID Manager Command S SB2 SSB1 Becaus e of the shortage of the pair tables , XP Snapshot pair cannot be c reated . pair cr eate 9 68 5 B90 1 B9A8 B9A9 B9AD B9AE Becaus e of the shortage of the differ ential tables , XP Snapsho t pair cannot be cr eated . pa[...]

T abl e 3 3 Cause of Error and the Result o f R AID Manag er Command (S SB) (contin ued) Cause of Err or RAID Manager Command S SB2 SSB1 The command e nded abnor mally becaus e the pair is in the status that the corr esponding co mmand is not accepted at pr esent . This er ro r also may be r eported when the command is ex ecu ted with s pecify ing [...]

T abl e 3 3 Cause of Error and the Result o f R AID Manag er Command (S SB) (contin ued) Cause of Err or RAID Manager Command S SB2 SSB1 pair cr eate, pairsplit , pairr es ync , pairr es ync - pairr es ync - Since y ou specif ied the vo lume that is in proces s of for matting as the XP Snapsho t P- VOL , the command ends abnor mally . pair cr eate,[...]

T abl e 3 3 Cause of Error and the Result o f R AID Manag er Command (S SB) (contin ued) Cause of Err or RAID Manager Command S SB2 SSB1 When XP Snap shot P -V OL and XP Con tinuous Acce ss Journal S oftwar e P- VOL shar e the volume , the status of the XP C ontinuous A ccess Journal pair is othe r than P SUS o r PS UE . Ther ef ore , the XP Snapsh[...]

T abl e 3 3 Cause of Error and the Result o f R AID Manag er Command (S SB) (contin ued) Cause of Err or RAID Manager Command S SB2 SSB1 pair cr eate pairsplit , pairr es ync , pairr es ync - r estor e Since y ou specif ied the vo lume whos e emulation type is other than OP EN - V as the XP Snapsh ot S - VOL , the command ends abnor mally . pair cr[...]

T abl e 3 3 Cause of Error and the Result o f R AID Manag er Command (S SB) (contin ued) Cause of Err or RAID Manager Command S SB2 SSB1 Since y ou specif ied XP Con tinuous Acce ss Journal S - V OL as the XP Snapshot S - V OL, the pair cannot be cr eated . Since y ou specif ied XP Con tinuous Acce ss Journal jour nal volume as the XP Snapsho t S -[...]

T abl e 3 3 Cause of Error and the Result o f R AID Manag er Command (S SB) (contin ued) Cause of Err or RAID Manager Command S SB2 SSB1 Since y ou specif ied the XP Aut o LUN t arget v olume as the XP Snapsho t P- VOL , the command ends abnor mally . F or infor mation about u sing XP Aut o LUN , contact HP techni cal support (see “Con tacting HP[...]

T abl e 3 3 Cause of Error and the Result o f R AID Manag er Command (S SB) (contin ued) Cause of Err or RAID Manager Command S SB2 SSB1 The XP Sna pshot pair cannot be cr eated fo r any of the follo wing r easons: • The shar ed memory is not incr eased . • Initiali z ation is in pr ocess. Unav ailable par ameter (unsupported par ameter ) is sp[...]

T abl e 3 3 Cause of Error and the Result o f R AID Manag er Command (S SB) (contin ued) Cause of Err or RAID Manager Command S SB2 SSB1 When the XP Snap shot P -V OL and XP Business C opy P -V OL share the v olume, the XP Busine ss Cop y P- VOL y ou spec ified f or the XP Snapsho t P -V OL has consistenc y group settings . Ther efor e, the XP Snap[...]

T abl e 3 3 Cause of Error and the Result o f R AID Manag er Command (S SB) (contin ued) Cause of Err or RAID Manager Command S SB2 SSB1 Since the pool or the pool- VOL is bloc ked , the snapsho t data cannot be stor ed. The XP Sna pshot pair cannot be r estor ed for an y of the follo wing r easons: • The sna pshot data of the XP Snapsho t pair f[...]

T abl e 3 3 Cause of Error and the Result o f R AID Manag er Command (S SB) (contin ued) Cause of Err or RAID Manager Command S SB2 SSB1 The XP Sna pshot pair cannot be cr eated becaus e the spec ified co nsistency gr oup number is out o f the range of the number that can be spec ified . The sna pshot data cannot be stor ed becaus e the XP Con tinu[...]

T abl e 3 3 Cause of Error and the Result o f R AID Manag er Command (S SB) (contin ued) Cause of Err or RAID Manager Command S SB2 SSB1 The XP Snap shot pair oper ation failed beca use the spec ified S-V OL is wr ong. pair cr eate pairsplit pairr es ync The consis tency gr oup infor mation cannot be obtained becaus e the XP Snapsho t is not instal[...]

7 Su pport and other r eso ur ces C ontac ting HP HP tec hnical suppo r t F or w orld w ide techni cal support info rmation , see the HP support w ebsite: http://www .hp.co m/support Bef or e contacting HP , collect the f ollow ing infor mation: • Pr oduct model names and n umbers • T echni cal support regis trati on number (if appli cable) •[...]

• HP St orage W orks XP2 4000/XP20000 P erfo rmance Co ntr ol User Gui de • HP St orage W orks XP RAID Manager User Gui de Y ou can find the se doc uments on the HP Manuals w ebsite: http://www .hp.co m/support/manuals In the St orage s ection , cli ck St orage Software and then selec t a produc t. W ebsites F or additio nal infor mation , see [...]

T abl e 34 D oc ument conv entions (continued) Element Conv ention • F ile and direc tory names • S yst em output • Code • Commands , their ar guments, and ar gument value s Monospace te xt • Code v aria bles • Command v ari ables Monospace, italic text Emphasi z ed monospace t ext Monospace, bold text Indicati on that the ex ample cont[...]

Glos sary 3 3DC Thr ee data center . C CCI Command co ntro l interface . An HP RAID manager . CLPR C ache logical partiti on. CLPR(P) C ache logical partiti on of the P - VOL . CLPR(S) C ache logical partiti on of the S - V OL. CT G Consis tency gr oup . CU Contr ol unit. CV Cu stom si z ed volume . CYL C ylinder . D DK C Disk contr oller . DK CMAI[...]

P P - VOL Pr imar y vo lume. PDE V Phy sical de vi ce. PFUL P AI R c losing full statu s. PFUS P SU S clo sing full statu s. PS UE P air suspended-err or . PS US P air suspended-split . R RMI Remot e method inv ocation . S S-V OL Secondary or r emote v olume. T he copy v olume that r ecei ves the dat a fr om the primary vo lume. SA T A Ser ial Ad v[...]

Inde x A access attr ibute , 2 7 Au to L UN, 2 7 C calc ulating the maximum n umber of pairs , 36 Change P ool Infor mation dialog bo x, 7 2 command de vi ce, 3 5 componen ts, 8 con venti ons stor age capacity value s, 1 1 7 COP Y , 1 5 Cop y Thr eshold option , 2 5 COP Y(RS), 1 5 Cr eate V- VOL w iz ard dialog bo x ( 1 ), 77 Cr eate V- VOL w iz ar[...]

vo lume list, 4 6 vo lume requir ements, 3 3 W w ebsites HP , 1 1 7 HP Subs cr iber's Choi ce for Bu siness, 1 1 6 pr oduct manuals , 1 1 7 X XP Busine ss Cop y , 2 7 XP Con tinuous A ccess, 3 0 XP Con tinuous A ccess Jour nal, 30 XP Snapsho t Softwar e licens e requir ements, 3 5 XP Snapsho t windo w , 5 3 XP Thin Pr ov isioning , 3 2 1 2 2 I[...]