Exabyte EXB-8500 manuale d’uso

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Copyright Copyright 1993 by Exabyte Corporation. All rights reserved. This item and the information contained herein are the property of Exabyte Corporation. No part of this docu ment may be reproduced, transmitted, t ranscribed, stored in a retrieval system , or translated into any language or computer languag e in any form or by any means, electr[...]

Agency Standards When properly installed with a shielded enclos ure, shielded cable, and adequate grounding the of the SCSI bus and the inpu t power, the EXB-8500 and EXB-8500c meet the following safety standards: UL Standard 1950, 1st Edition, Information Technology Equipment; CAN/CSA Standard C22.2 No. 950-M-89, Safety of Information Technology E[...]

Product Warranty Caution The EXB-8500 and EXB-8500c 8mm Cartridge Tape Subsystems (tape drives) are warranted to be free from defects in materials, parts, and workmanship and will conform to the current p roduct specifications upon delivery . For the spec ific detai ls of your warra nty, ref er to your sales cont ract or con tact the c ompany fr om[...]

Contents W e l c o m e............................ 7 A b o u t T h i s G u i d e .............. ...... .....8 C o n v e n t i o n s U s e d i n T h i s G u i d e ....... ..........8 F o r M o r e I n f o r m a t i o n ....... .......... ......8 1I n s t a l l i n g t h e T a p e D r i v e .................. 9 Unpacking the T ape Drive . . . . . . .[...]

6 EXB-8500/EXB-8500c 3062 61[...]

W e lcome Thank you for selecting the EXABYTE ® EXB-8500 or EXB-8500c 8mm Cartridge Ta pe Subsystem (tape drive ). The EXB-8500 and the EXB- 8500c (shown belo w) are high-capacity, high -performance, and high ly reliable streaming tape drives for PC, super-mini, and mainf rame computer systems. Packaged in a standard 5.25-inch form-factor , the EX[...]

About This Guide Use this guide as you install and operate the tape drive. In addition to instructions for installati on and operation, this guide provides informat ion about selecting and maintaining data cartridges, cleaning the tape drive, and packing th e tape drive for shipment. Conventions Used in This Guide This guide u ses the following con[...]

1 Installing the Tape Drive This section provides instru ctions for the followi ng tasks: ■ Unpacking the tape drive and ensuring ESD protection (page 10) ■ Setting the SCSI ID (page 11) ■ Preparing the tape drive f or the SCSI bus (page 14) ■ Installing the tape drive in a PC drive bay (page 17) ■ Connecting the tape drive to the power s[...]

1 ⁄ 4 -inch female spade connector or M3-0.5 6 mm self-tapping screw Can be used for a dditional chassis grounding. Unpacking the Tape Drive The tape drive’s packaging is designed to protect the tape d r i v ef r o ms h o c k ,v i b r a t i o n ,m o i s t u r e ,a n de l e c t r o s t a t i c discharge (ESD). Save all original packagin g in cas[...]

discharge static elect ricity from your body bef ore handling the tape drive. (Touch a known grounded surface, such as your computer’s metal chassis.) ■ If you must lay the tape drive down, plac e it into or on top of the antistatic bag. Setting the SCSI ID A f t e ru n p a c k i n gt h et a p ed r i v e ,y o uc a nc h a n g et h et a p e drive[...]

Setting the SCSI ID with the DIP Switches To set the SCSI ID using the DIP switches, follow these steps: 1. Locate the SCSI ID DIP switches on the back of th e tape drive, as shown in Figure 1. 2. Change the DIP switch settings to the correct SCSI I Df o ry o u rc o n f i g u r a t i o n .F i g u r e2s h o w st h e settings for SCSI IDs 0 through 7[...]

Setting the SCSI ID with Jumpers To set the SCSI ID using jumpers, follow these steps: 1. Locate the SCSI ID jumper block on the back of the tape drive, as shown in Figure 1. 2. Install the jumpers on the jumper block to obtain the correct SCSI ID for your configuration. Figure 3 shows how to position the jumpe rs for SCSI IDs 0 through 7. 3. Make [...]

Setting the SCSI ID with a Remote Switch If you want to set the SCSI ID remotely, you can attach a remote switch assembly (not provide d with the tape drive) to the tape drive’s SCSI ID jumper block. To set the SCSI ID with a remote switch, follow these steps: 1. Locate the SCSI ID jumper block on the back of the tape drive, as shown in Figure 1.[...]

Terminating a Single-Ended Tape Drive The sing le-ended tape dri ve includes two sing le in-line package resistor terminat ors (R-packs) that can be lef t in place if the tape drive ter minates the SCSI bus. CAUTION The R-packs must be removed if the tape drive does not terminate the SCSI bus or if you plan to use an external SCSI bus termination. [...]

2. Using a pair of flat-nose wiring p liers, grasp each R-pack at the center and pull it straight out . Be carefu l not to sque eze the plie rs too tigh tly or you may break the R-pack. Replacing the R-Packs If you ne ed to put the R -packs ba ck in th e tape drive, make sure that pin 1 of each R-pack is aligned with pin 1 of the soc ket and th at [...]

Installing the Tape Drive in a PC Drive Bay If you are plannin g to mount the tape drive in a full -high PC drive bay, follow the guidel ines in this sec tion. Otherwise, refer t o Appendix A for installation requirements, the n resume reading on page 20, “Performi ng the Initial Po wer On.” Before beginning, prepare your computer as fo llows: [...]

5. If necessary, remove o ne of the floppy disk drives to provide an empty full-high drive bay for the tape drive. CAUTION If you remove floppy disk dri ve B to install the tape drive, be sure to change your system configuration to reflect this. Re fer to your computer owner’s manual for de tails on running the syst em’s setup program. Mounting[...]

3. From the front of the c omputer , thread the SCSI cable into the computer through the open bay. Slide the tape drive into the bay until the faceplate is f l u s hw i t ht h ef r o n to ft h eb a y . 4. Secure the tape drive to the drive bay as instructed in your computer owner’s manual. 5. C o n n e c tt h eS C S Ic a b l et oy o u rS C S Ia d[...]

7. Connect power ca ble from the power supply to the 4-pin power connector on the back of the tape drive. CAUTION ■ Make sure that the PC power is off bef ore you connect the c able. ■ Do not force the pl ug into the connecto r. The keyed edges of the plug and the co nnector must m atch. 8. Replace the computer’s cover. Performing the Initial[...]

When power is applied, the tape drive performs its power-o n initia lizatio n and self-t est (P OST). Assumi ng that no data cartridge is loaded and that the t ape drive is connected correctly, POST takes about 65 seconds, as follow s: ■ During the first part of POST, bot h the amber and green LEDs are lit. ■ During the second part of POST, var[...]

4. Push the doo r shut and wai t while t he tape dr ive loads the tape and positions it at LBOT. W hen the amber LED is off and the green LED is on, the t ape is loaded and the tape drive is ready. 5. Write approximately 500 MBytes of data to the tape. 6. Read the data wr itten in step 5. 7. Repeat steps 5 and 6 at least two times or for two hours [...]

2 Operating the Tape Drive This section in cludes information about the following: ■ Reading the tape drive’s LEDs ■ Setting the write-prot ect switch on the data cartridge ■ Loading and unloading a data cartridg e Figure 9 s hows the con trols and i ndicators o n the front panel of the EXB-8500c. (T he front panel of the EXB- 8500 is the s[...]

Table 2 shows specifi c combinations of LEDs that m ay occur during tape drive operatio n. You may occasionally observe LED combinations an d sequences not described in Table 2. These other combinations represent special or unusual condition s that are beyond the scope of this table. (For example, a fair ly complex LED sequence occurs when you load[...]

Selecting Data Cartridges By selecting high-qu ality data cartridges and storing them properly, you can expect a long shelf -life and optimal data integrity fro m them. High quality tapes also help maintain tape drive reliability by minimizing wear on the recording heads. Choosing High-Quality Data Cartridges Available from Exabyte , EXATAPE™ 8mm[...]

Setting the Write-Protect Switch EXATAPE™ 8mm data cartridges are equipped with a write-prote ct switch, shown in Figure 10, to prevent data on the tape from being uninte ntionally over writte n. Before loading a data cartridge in the tape drive, ens ure that the write-prote ct switch is set correctly for the desired operation. You can use a ball[...]

Loading a Data Cartridge To load a data cartridge into the tape d rive, follow th ese steps: 1. Ensur e that the wri te-protect s witch has been s et correctly for the de sired operatio n, as explained on page 26 . 2. I fy o uh a v ej u s tp o w e r e do nt h et a p ed r i v e ,b es u r e that the green LED is off, indicating that the tape drive ha[...]

wait a few seconds and press the button again to ej ect the tape. To unload a data cartridge , press the unload but ton on the tape drive’s front panel. The tape drive comple tes the current operation, write s any buffered data to t ape, unloads the tape fr om the tape p ath, and ejects the cartridge. Note: Some tape drives are configured to ejec[...]

3 Preventive Maintenance The only routine maintenance require d by the tape drive is regular cleani ng of the tape drive heads and tape path. Use only an Exabyte or Exabyte-approved 8mm Cleaning Cartridge. Proper stor age and maintenance o f your data cartridges will maximize the shelf life of your tapes and assure data integrity. Important Using a[...]

Using the 8mm Cleaning Cartridge CAUTION To prevent contamination of the tape drive and damage to the heads, do not use the c leaning cartridge for more than the number of cleaning cycles specified on t he cartridge label .R e u s i n gt h e material in the cleaning cartridge will redistribute contaminants previously rem oved from the tape p a t h [...]

3. Insert the cleanin g cartridge in the tape drive and close the do or. 4. The cleaning cycle is perfor med automatically by the tape drive and takes approximat ely 38 seconds. When the cleani ng cycle is complete, the cl eaning cartridge is automat ically unloaded and ej ected from the tape drive. Important If ther e are no more cl eaning cycles [...]

■ Keep the storag e location as free o f airborne particulates as possible. To eliminate obvious s ou r ce s of particulates, do not permit anyone to s mo ke , e a t , o r d r in k near the storage area , and do not store cartridges near a copie r or printer that may emit toner and paper dust. ■ Store data cartri dges as soon as possible after [...]

Replacing Data Cartridges Approximately once each year, you may want to run each tape through a full pass and check its err or statistics. If errors have increased significantly since the previous test or if they exceed a certain predet ermined threshold, you should re-archive th e data to a new tape and discard the old tape. December 1993 EXB-8500[...]

Notes: 34 EXB-8500/EXB-8500c 3062 61[...]

4 Packing the Tape Drive You can ship the tape drive with either one drive per carton (single-pack) or with four drive s per carton (four-pack). Figur e 13 on page 34 shows the single-pack carton and packing materials. CAUTION ■ To avoid damaging the tape drive and voiding your warranty, be sure to use the original shipping materials (or replacem[...]

Packing the Tape Drive for Shipment To pack the tape drive for shipment, follow these steps: 1. Obtain the original shipping carton or contact your vendo r to rece ive a new on e. 2. Assemble the carton and tape it shut at the bot tom with two -inch (5 1 mm) packi ng tape. 3. Place each tape drive in an antistatic bag. Tape the bag shut. 4. Place t[...]

6. Four-pack shipping carton : CAUTION Do not use the four-pack shipping carton for fewe r than four tape drives. I f you are shipping one, two, or three tape drive s, use a single-pack carton for ea ch tape drive. a. Place four tape drives in th e bottom packing cushion’s slots. You can place the tape drives in the packing cushion so that eith e[...]

Environmental Requirements for Shipment When shipping a tape drive, be sure to comply with the enviro nmental s pecifica tions sh own in Table 4 . Temp. Range –40 ° Ct o+ 6 0 ° C ( –40 ° F to +140 ° F) Temp. Variation 1 ° C per m inute up to a maximum of 20 ° C p er hour (2 ° F per minute u p to a maximum of 36 ° F per hour) Rel. Humidi[...]

Appendix A Installation Requirements This appendix provides specific installation requirements for the tape drive. It also provides guidelines for the following tasks: ■ Selecting the correct SCSI cable and connector (pages 37 and 38) ■ Attaching the tape drive to a frame (page 38) ■ Providing chassis groun ding (page 40) ■ Connecting the t[...]

Note: To minimize discontinuities and signal reflections, e nsure that cables used on the same bus have the same im pedances. Cable Length Requiremen ts for Differential Configurations For di fferential S CSI con figurati ons, ens ure that th e sum of all the SCSI cable lengths does not exce ed 25.0 meters (82.02 feet ). A stub len gth of no m ore [...]

EXB-8500c Product Specifi cation for detailed inform ation about the spacing of thes e mounting holes. When mounting the tape drive, follow these guidelines: ■ The mo unting loc ation mus t meet the en viron mental requirements discussed in the EXB-8500 and EXB-8500c Product Specific ation . These requirements specify limits for operating temp er[...]

Chassis Grounding (optional) If additional chassis grounding is desired, connect a 1 ⁄ 4 -inch female spade c onnector to t he ground tab at the rear of the tape drive. Or, connect an M3-0.5 6 mm self-tapping scre w to the grounding hole. The ground tab and grounding hole are shown in Figure 8 on page 19. Figure 14 Mounting holes on the sid es of[...]

Note: The power supply returns are connect ed to the chassi s, so you cann ot isolate logi c common ground from chassis ground. Power Cable Connector The tape drive operate s from standard +5 VDC and +12 VDC supply voltages; it cannot use exter nal AC power. Safety agency certification requires that the supplied voltage be from a Safety Extra-Low V[...]

Notes: 44 EXB-8500/EXB-8500c 3062 61[...]

Appendix B Tape Drive Specifications General Front panel Unload button, LED i ndicators for SCSI activ ity, tape motion,and err ors Back panel SCSI cable conn ector, power connector, jumper block and DIP switch for SCSI ID, SCSI terminator R-packs (s ingle-ended configura tion) Interface SCSI-1 and SC SI-2, single-ended or differential Physical Cha[...]

Notes: 46 EXB-8500/EXB-8500c 3062 61[...]

Index A agency standards 3 C cable requireme nts power cable 40 SCSI cable 37 – 38 cartridg es see data cartridges chassis grounding 19, 40 cleaning the tape drive frequency 29 instructions 30 – 31 condensation 10 D data cartridges care of 31 – 32 loading 27 replacing 32 storing 31 – 32 unloading 27 – 28 write-protect switch 26 differenti[...]

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