HP (Hewlett-Packard) XP20000 manuale d’uso

HP S to r age W or ks XP2 4000/XP20000 Disk/C ac he P artition Us er's Gui de P art number : T5 214-9 60 7 6 Sev enth edition: Augu st 2009[...]

Legal and notice information © Cop yr ight 200 7 , 2009 He wlett-P ackar d D ev elopment Co mpany , L .P . Conf idential co mputer softw are . V alid license fr om HP requir ed for posse ssion , use or cop ying . Consist ent with F AR 12 .211 and 12 .212 , Commer ci al Compute r Softwar e, C omputer S oftwar e Documentati on, and T echnical Data f[...]

C onte nts 1 Ov ervi e w of HP S tor age W or ks XP Disk/Cac he P ar titio n Softw ar e ............. 7 Intr oducti on to Disk/Cac he P artition .............................................................................................. 7 Benef its of Disk/Cac he P artition ........................................................................[...]

Con venti ons for S tor age Capac it y V alues ..................................................................................... 37 HP T echnical Su pport ................................................................................................................ 38 Subs cr iption Serv ice ...................................................[...]

F igur es Sto rage L ogical P ar tition (SLP R) ................................................................................. 10 1 Cac he Logi cal P artition (CLPR) .................................................................................. 11 2 Sto rage A dministr ator and Sto rage P ar tition A dministr ator Pr iv ileges ..............[...]

T a bles CLPR Data C apac ity and the Recommended C ache Ca pacity ....................................... 11 1 Logi cal P artition W indow Det ails (Stor age Sy stem Select ed) .......................................... 18 2 Sto rage Manageme nt Logi cal P artition Windo w (SLPR Selec ted) .................................... 19 3 Cac he Logi cal [...]

1 Ov er v ie w of HP St or ag e W orks XP Disk/Cac he P ar tition Soft w ar e This c hapter pr ov ides an in troduc tion to XP Disk/C ache P ar tition S oftwar e . • Intr oducti on to Disk/Cac he P artition , page 7 • Benef its of Disk/Cac he P artition , page 8 • F eatur e Highligh ts , page 8 Unless o therwise s pecif ied, the te rm stor ag[...]

P artition to c reat e up to 3 2 pri vate v irtual stor age machines on the s tor age sy stem . With the ab ility to manage eac h par tition a s its ow n stor age sy stem, I T managers can oper ate stor age in an utility lik e fashi on, negoti ating and pr ov iding differ ent QoS b y applicati on and char ging back busines s units fo r stor age usa[...]

2 About Disk/Cac he P ar tition This c hapter pr ov ides a det ailed desc ripti on of St orage L ogical P artition (SLPR) and C ache L ogical P artition (CLP R) . • Sto rage L ogical P ar tition (SLP R) , page 9 • Cac he Logi cal P artition (CLPR) , page 10 The s tor age sy stems can connect m ultiple hosts , and can be shared b y multiple user[...]

Figur e 1 Storage Logical P ar tition (SLPR) . Cac he L ogical P artitio n (CLPR) If one sto rage s ystem is shar ed with m ultiple hosts , and one host r eads or wr ites a lar ge amount of data , read and w rite data can r equire eno ugh of the cache memo ry to affect other u sers . The cac he logical partition f uncti on cr eates two or mor e vir[...]

Y ou can cr eate up to 3 2 cache logical partiti ons in one stor age sy stem , including the de fault CLP R 0. See “ Cr eating a Cac he Logi cal P artition ” on page 32 fo r instruc tions on c reating cac he logical partitions . F igur e 2 illustrat es a cache logi cal partition. Figur e 2 Cach e Logical P artition (CLPR) . T able 1 lists the r[...]

Recommended Cache Capac ity CLPR Data Capacity 40 GB or mor e 18 2 ,000 GB or mo re 48 GB o r more 218 , 000 GB or mor e 5 6 GB or mor e 2 54 , 000 GB or more 64 GB or mor e 2 90, 000 GB or mor e 7 2 GB or mor e 3 2 6, 000 GB or mor e T o calc ulate the data capacit y: The number of 3D+1P parity groups x capacity of one HDD x 3 + the number of 6D+2[...]

3 Pr eparing f or XP Disk/Cac h e P ar tition Operations This c hapter dis cu sses the pr eparatio n needed for XP Disk/Cac he P ar tition oper ations. • Sto rage A dministr ator and Sto rage P ar tition A dministr ator Pr iv ileges , page 13 • P os sible Inter acting and Co nflic ting Func tions , page 15 S tor age Adminis tr ator and S tor ag[...]

• Acces sing Stor age Logical P artition 0 (SLPR 0) and C ache L ogical P ar tition 0 (CLP R 0) • Managing mainfr ame volumes • Stor age P artition Administrators can vi ew and manage onl y those r esour ces that have bee n as- signed to a s pecif ic stor age logical partition . Stor age partition administr ators hav e access onl y to the fun[...]

Figur e 3 Storage Administr ator and Stor age P artition Administrator Pri vileges . P os sible Inte r acting and C onfli cting F uncti ons It is possible f or actions tak en by a st orage adminis trato r to inter act and conflic t with ac tions tak en by a partiti on stor age administrator . W ARN ING: If y ou are u sing HP Stor age W orks XP RAID[...]

• L U path settings and High S peed settings (see the HP S tor age W orks XP2 4000/XP20000 L UN Manager Use r's Guide ) • L USE settings (see the HP S tor age W orks XP2 4000/XP20000 L UN Expansion U ser's Guide ) If y ou are u sing HP Stor age W orks XP Con tinuous A ccess Jour nal Softwar e, XP C ontinuo us Acces s Journal dat a vol[...]

4 Using th e XP Disk/Cac h e P ar tition GUI This c hapter de scr ibes the windo ws that compr ise the XP Disk/Cac he P artition GUI . • Logi cal P artition W indow , page 17 • Sto rage Manageme nt Logi cal P artition Windo w , page 19 • Cac he Logi cal P artition Windo w , page 21 • Select C U Dialog Bo x , page 23 • L icense K e y P art[...]

Figur e 5 Logical P artition Window (Stor age Sy stem Selected) . T abl e 2 Logical P artition Window Details (St orage S ystem Selected) Description Item The s torage s ystem and all o f its logical partitions . The name and numbe r of the stor age logical partition are dis play ed to the ri ght of eac h SLPR icon . P ar tition definition tree The[...]

S tor age Management L ogical P artitio n W indo w The S tor age Management L ogical P ar tition w indow displa ys if y ou select an SLP R in the P ar tition Def inition tr ee of the P ar tition Def inition tab . If you ar e logged on as a stor age partition administr ator , this w indow sh ow s only the r esour ces in that stor age partition . The[...]

Description Item When a st orage logi cal partition is select ed the P ar tition Def inition tree , the Stor age Logi cal P artition r esour ce list sho ws r esour ce infor mation , including logical partitio ns and ports, for the select ed stor age logical partitions cac he. If SLPR 0 is select ed in the Stor age Logi cal P artition tree , this li[...]

Description Item Cancels an y settings that wer e made in this windo w Cancel Cac he L ogical P artitio n W indo w The C ache Managemen t Logi cal P artition w indow (s ee F igur e 7 ) display s if you s elect a CLPR in the P artition Def inition tr ee of the P artition Def inition tab . If you ar e logged on as a stor age par tition administr ator[...]

Description Item All of the s torage logi cal partitions and cache logi cal partitions in the stor age sy stem . The stor age logical partition number and name ar e displa yed to the r ight of the eac h SLPR icon ( ). The cache logi cal partition number and name ar e display ed to the right o f the CLPR i con ( ). P ar tition Definition tree When a[...]

Description Item Allo ws y ou to set or change the s ettings of the spec ified cac he logical partition . See “ Cache Logi cal P artition Operati ons ” on page 31 f or more inf ormation on cac he logical partition oper ations. Y ou cannot direc tly c hange the capacity v alue of CLPR 0. A ny c hanges in the capac ity of the other CLP Rs will be[...]

Figur e 8 Selec t CU Dialog Box . T abl e 5 Select C U Dialog Box Details Description Item When se lected, inf ormation abou t all CUs can be displa yed on the CLP R r esour ce list . All CUs When se lected, inf ormation abou t only the spec ified CU can be dis play ed on the CLPR r esour ce list. • Use the LDK C list to spec ify LDKC • Use the[...]

Figur e 9 License K ey P ar tition Definition Windo w . The Pr oduct Name list is on the uppe r part of the windo w (see F igur e 10 ) , and lists the pr ogr am pr oducts f or whi ch the li censed capac it y can be allocated to SLP Rs. Figur e 10 Product Name List . T abl e 6 Product Name List Details Description Item Name of the pr oduct , includi[...]

Description Item The li cense type: P ermanent , T emporary or Emergency . Not Installed is display ed, w hen the option is no t installed. Since all the SLP Rs will be av ailable whe n the ke y t ype of the pr ogram pr oduct is T empor ar y or Emer gency , you do no t need to separ ate each SLP R. T here for e , no partition statu s infor mation f[...]

After s electing an optio n, P artition Status List and Setting Box is displa yed under the inf ormation a bout the licens ed capac ity (see F igur e 12 , F igur e 13 , and F igur e 14 ) . This allo ws y ou to selec t and displa y info rmation r egarding a st orage logi cal partition . Figur e 12 P ar tition Status List . The P artition Statu s lis[...]

If y ou select an opti on w ith a limited licens e capac ity , the Setting box loo ks like F igur e 14 . Y ou may enter the li censed capac it y to be allocated to the SLP R. Ho we ver , you cann ot set the lice nsed capac ity of SLPR0. If y ou select SLP R0, Set w ill be inacti ve . Figur e 14 Setting Box (L icense Capacit y Limited) . T abl e 10 [...]

5 XP Disk/Cac he P ar tition O per ations This c hapter pr ov ides det ailed instruc tions f or XP Disk/Cac he P artition oper ations . • Sto rage L ogical P ar tition Ope rati ons , page 29 • Cac he Logi cal P artition Oper ations , page 31 S tor age L ogical P artitio n Oper ations Sto rage logi cal partition oper ations ha ve the f ollo wing[...]

• In the Fr om fi eld, en ter the starting number o f the S SID (0004 to FFFE). • In the T o field , enter the ending number o f the S SID . 6. Cli ck Apply to appl y the settings, or c lic k Cancel to cancel the settings . Note: At this po int in the proce ss, the ne wly c reated st orage logi cal partition has no r esour ces (fo r e xample , [...]

2. F rom the S tor age Logi cal P artition Re sour ce L ist , select one or mo re cac he logical partitions and/or tar get ports to be migr ated. R ight-cli ck to dis play the pop-up men u , then cli ck Cut . SLP Rs fr om other CUs ar e gr ay ed out and una vailable . 3. On the P ar tition De finiti on tree , select the SLP R to whi ch y ou want to[...]

• Adding or c hanging CLPR de finiti ons can req uire s ev er al hours or mo re . • If y ou are u sing XP Contin uous A ccess Jour nal, data and j ournal v olumes can belong t o the differ ent CLPRs , but the jour nal vo lumes in the same jour nal group m ust belong to the s ame CLPR . F or mor e info rmation o n XP Contin uous Acce ss Journal [...]

6. If y ou want to c hange the settings of an e xisting CLP R, r epeat steps 3 thr ough 5. NO TE: Note: At this po int , the cache l ogical partitio n has no par it y gr oup s. See “ Migr ating R esour ces T o and F r om Cac he Logi cal P artitions ” on pa ge 33 fo r mor e info rmati on on migr ating r esour ces to and f r om cach e logical par[...]

Figur e 17 Selec ting the CU . T abl e 11 Selecting t he CU Description Item Displa ys the inf ormatio n for all CU s in the CLPR r esour ce list. All CUs Displa ys the inf ormatio n for spec ified CU in the CLP R re sour ce list . • The LDK C dr op-dow n list allo ws y ou to select the LDK C. • The CU dr op-dow n list allo ws y ou to selec t t[...]

6 T roubleshooting This c hapter de scr ibes some tr oubleshooting me thods if yo u hav e proble ms with Disk/C ache P ar tition . • Gener al T ro ubleshooting , page 35 • Displa ying an Er r or Message , page 35 • T ro ubleshooting Disk/C ache P ar tition , page 35 • Calling HP T echni cal Support , page 36 Gener al T r ouble shooting • [...]

Correctiv e Action Err or • L Us in par ity group s must r emain within the same SLP R. When y ou attempt to mi grate a par it y gr oup to a CLPR in an other SLPR , an L U war ning message is dis play ed. • L Us in par ity group s must r emain within the same SLP R. When y ou attempt to mi grate a CLP R to another SLP R or deleted that CLP R, a[...]

7 Suppor t and Ot h er Res our ces R elated Doc ument atio n • HP Sto rage W orks XP2 4000/XP20000 C ache R esidenc y Manager User's Gui de • HP Sto rage W orks XP RAID Manager User ’ s Gui de • HP Sto rage W orks XP2 4000/XP20000 Data R etention Utility Use r's Guide • HP Sto rage W orks XP2 4000/XP20000 L UN Expansion U ser&ap[...]

• 1 GB (gigab yte) = 1, 0 2 4 3 byte s • 1 TB (ter ab yte) = 1, 02 4 4 bytes • 1 PB (petab yte) = 1, 0 2 4 5 byte s • 1 block = 512 b ytes HP T ec hnical Su pport F or wor ldw ide techni cal support infor mation , see the HP support w ebsite: http://www .hp .com/support Bef or e contacting HP , collect the follo wing inf ormati on: • Pr o[...]

A Ac r on y ms and Abbre v iations T abl e 13 Acron yms and Abbre viations cache logi cal partition CLP R contr ol unit CU cu stomi zed v olume CV dir ect-access stor age devi ce D ASD Used to s egregate h osts b y operating s ystem platf orm. Als o know n as a host sto rage domain. host gr oup local-ar ea networ k LAN logical de vi ce LDEV local c[...]

Virtual L VI/LUN VLL virtual v olume V- VOL wo rld w ide name WWN ext ended re mote copy XRC IBM z/O S operating s ystem z/O S Ac ron yms and Abbr evi ations 40[...]

Inde x A allocating licens e capac ity stor age logical partitions (SLP Rs) , 30 allocating ports to SLPRs r estr icti ons on port type , 29 Au to L UN manual migr ation acr oss multiple CLPRs r estr icti ons, 3 2 B Busines s Cop y quic k r estor e operati ons acr oss multiple CLP Rs r estr icti ons, 3 2 C cache logi cal partitions o verv ie w , 10[...]

O oper ations CLPR , 31 cr eating a CLPR , 3 2 cr eating an SLPR , 2 9 deleting CLP Rs, 3 4 deleting SLP Rs, 31 migr ating r esour ces among CLPRs , 3 3 migr ating r esour ces among SLPRs , 30 SLPR , 29 oper ations not r ecommended for CLP Rs r estr icti ons, 3 2 o verv ie w Cac he Logi cal P artitions (CLPR), 10 stor age logical partitions (SLP R)[...]