IBM 2104 Model DS4 User manual

Expandable Storage Plus
2104 Model DS4 Installation Guide
GA22-1053-00
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Expandable Storage Plus
2104 Model DS4 Installation Guide
GA22-1053-00


Note:
Before using this information and the product it supports, read the general information under “Notices” on page 59.
First Edition (October 2003)
©Copyright International Business Machines Corporation 2003. All rights reserved.
US Government Users Restricted Rights –Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Figures ............................v
Tables ............................ vii
Safety and environmental notices .................ix
Safety notices and their translations .................ix
Electrostatic discharge (ESD) ....................x
Safety inspection procedures ....................x
Inspecting the rack .......................x
Inspecting the 2104 Model DS4 ..................xi
External machine checks ....................xi
Internal machine checks .....................xi
Safety label checks ...................... xii
Checking the grounding of the 2104 Model DS4 ............xv
Removing power from a2104 Model DS4 ............. xviii
Danger notices .........................xx
Caution notices......................... xxi
Environmental notices and statements ............... xxvii
Fire suppression systems ................... xxvii
Product recycling ...................... xxvii
About this document ..................... xxix
Who should read this document .................. xxix
Additional information ...................... xxix
2104 Model DS4 and Model TS4 library .............. xxix
Related documents ...................... xxix
Web sites ......................... xxx
How to send your comments .................. xxx
Installing a2104 Model DS4 ....................1
Installing a2104 Model DS4 into arack ................2
Checking the items for a2104 Model DS4 ..............2
Preparing the rack (system or expansion) ..............3
Removing the disk drive modules and dummy disk drive modules .....5
Installing the 2104 Model DS4 into the rack .............11
Reinstalling the disk drive modules and dummy disk drive modules ....14
Installing the switch cover plate ...................17
Setting the options .......................19
Connecting the 2104 Model DS4 to the power source ..........27
Connecting the 2104 Model DS4 to the host system ...........29
Switching on and testing the 2104 Model DS4 ............31
Appendix A. Operating with RISC systems .............33
System service aids .......................33
Identifying a2104 Model DS4 and the disk drive modules .........33
AIX ............................33
Linux ...........................33
Configuring a2104 Model DS4 to an AIX host system ..........33
Unconfiguring a2104 Model DS4 from an AIX host system ........33
Configuring a2104 Model DS4 in aSuSE Enterprise Server for pSeries
environment .........................34
Collecting Errors ........................34
©Copyright IBM Corp. 2003 iii

Appendix B. Cable configurations .................35
Valid configurations .......................35
Summary of valid configurations .................37
Single-bus mode configurations ..................38
Dual-bus mode configurations ..................45
Invalid configurations.......................52
Two adapters in one host system connected to one 2104 Model DS4 ....52
One adapter in one host system connected to two 2104 Model DS4s through
the SCSI interface cards ...................53
One adapter in one host system connected to two 2104 Model DS4s through
aY-cable (1) ........................54
One adapter in one host system connected to two 2104 Model DS4s through
aY-cable (2) ........................55
One dual-channel non-RAID adapter in one host system connected to two
2104 Model DS4s and internal disk drives .............56
One RAID adapter in each of two host systems connected to two 2104 Model
DS4s...........................57
Notices ...........................59
Trademarks ..........................60
Electronic emission statements ...................60
Federal Communications Commission (FCC) statement .........60
Industry Canada compliance statement ...............60
Chinese Class Awarning statement ................60
European Community compliance statement .............61
Germany compliance statement..................61
Japanese Voluntary Control Council for Interference (VCCI) class 1statement 62
Korean Government Ministry of Communication (MOC) statement .....62
Taiwan class Acompliance statement ...............62
Index ............................63
iv Expandable Storage Plus 2104 Model DS4 Installation Guide

Figures
1. 2104 Model DS4 label ............................. xii
2. Linecord caution label ............................. xii
3. Power supply cover caution label ......................... xiii
4. Fusing caution label.............................. xiii
5. 2104 Model DS4 weight label .......................... xiv
6. Standby condition label ............................ xiv
7. Power cables and SCSI connectors on the 2104 Model DS4 ...............xv
8. Ground pin (220 V2104 Model DS4 )....................... xvi
9. Ground pins (-48 V2104 Model DS4) ....................... xvi
10. Removing the power from a2104 Model DS4.................... xviii
11. Linecord caution label ............................. xxi
12. Power supply cover caution label......................... xxi
13. Fusing caution label ............................. xxi
14. 2104 Model DS4 weight label .......................... xxii
15. 2104 Model TS4 weight label .......................... xxiii
16. Location of standby condition .......................... xxiv
17. Items for the 2104 Model DS4 ..........................2
18. Installing the support rails ............................3
19. 2104 Model DS4 weight label ..........................5
20. Disk drive modules that show the position of the 2104 Model DS4 serial number label......6
21. Opening the handle of adisk drive module......................7
22. Removing adisk drive module ..........................8
23. Disk drive module on its side for safe storage.....................9
24. Removing adummy disk drive module .......................10
25. 2104 Model DS4 weight label ..........................11
26. Installing the front mounting screws ........................12
27. Installing the back mounting screws ........................13
28. Reinstalling a2104 Model DS4 disk drive module...................14
29. Closing the handle of adisk drive module .....................15
30. Reinstalling adummy disk drive module ......................16
31. Installing the switch cover plate onto the panel of the SCSI Interface card-2 (second JBOD
interface card) box ..............................17
32. Inside the switch cover plate showing the hook, latch, and two guide pins with the SCSI Interface
card assembly ................................18
33. Setting the box ID ..............................19
34. Setting the option switches ...........................20
35. Unscrewing the thumbscrew ..........................21
36. Opening the lever on the card assembly ......................22
37. Removing the card assembly ..........................23
38. Card assembly switches ............................24
39. Inserting the card assembly ...........................25
40. Closing the lever on the card assembly ......................26
41. Connecting the power plugs...........................27
42. Checking the power supply switch and lights ....................28
43. Plug in the SCSI signal cable ..........................29
44. Back of fully configured 2104 Model DS4 after connection to the host system ........30
45. Checking the lights ..............................31
46. One adapter in one host system connected to one 2104 Model DS4 (single-bus mode) .....39
47. Two adapters in one host system connected to two 2104 Model DS4s (single-bus mode) ....40
48. One adapter in each of two host systems connected to two 2104 Model DS4s (single-bus mode) 41
49. One adapter in one host system connected to two 2104 Model DS4s (single-bus mode) ....42
50. One adapter, one host system with internal RAID array, and two 2104 Model DS4s (single-bus
mode) ...................................43
©Copyright IBM Corp. 2003 v

51. One adapter in each of two host systems connected to one 2104 Model DS4 (single-bus mode) 44
52. Two adapters in one non-HACMP host system connected to one 2104 Model DS4 (dual-bus
mode) ...................................46
53. Three adapters in two non-HACMP host systems connected to two 2104 Model DS4s (dual-bus
mode) ...................................47
54. One adapter in one non-HACMP host system connected to one 2104 Model DS4 and an internal
RAID array (dual-bus mode) ..........................49
55. One adapter in each of two non-HACMP host systems connected to one 2104 Model DS4
(dual-bus mode) ...............................50
56. One RAID adapter in each of two non-HACMP host systems connected to two 2104 Model DS4s
(dual-bus mode) ...............................51
57. Two adapters in one host system connected to one 2104 Model DS4 (single-bus mode) ....52
58. One adapter in one host system connected to two 2104 Model DS4s through the SCSI Interface
cards ...................................53
59. One adapter in one host system connected to two 2104 Model DS4s through aY-cable (1) 54
60. One adapter in one host system connected to two 2104 Model DS4s through aY-cable (2) 55
61. One dual-channel non-RAID adapter in one host system connected to two 2104 Model DS4s and
internal disk drives ..............................56
62. One RAID adapter in each of two host systems connected to two 2104 Model DS4s ......57
vi Expandable Storage Plus 2104 Model DS4 Installation Guide

Tables
1. Valid configurations ..............................37
©Copyright IBM Corp. 2003 vii

viii Expandable Storage Plus 2104 Model DS4 Installation Guide

Safety and environmental notices
This section contains the following information:
vSafety notices and their translations
vSafety inspection procedures for this product
vEnvironmental notices and statements
Safety notices and their translations
Safety notices are printed in English throughout this document.
ADanger notice warns you of conditions or procedures that can result in death or
severe personal injury.
ACaution warns you of conditions or procedures that can cause personal injury that
is neither lethal nor extremely hazardous.
An Attention notice warns you of conditions or procedures that can cause damage
to machines, equipment, programs, or data.
For translations of the danger and caution notices, see Expandable Storage Plus
2104 Model DS4 and Model TS4 Translated Safety Notices,SC26-7558. The
notices are listed in numeric order based on their IDs, which are displayed in
parentheses, at the end of each notice. See the following examples of danger and
caution notices for the location of the ID number.
DANGER
An electrical outlet that is not correctly wired could place ahazardous
voltage on the metal parts of the system or the products that attach to the
system. It is the customer’s responsibility to ensure that the outlet is
correctly wired and grounded to prevent an electrical shock. (1)
CAUTION:
Do not insert hands or tools into the opening of the empty space that
contained the fan assembly. (1)
©Copyright IBM Corp. 2003 ix

Electrostatic discharge (ESD)
Attention: When you handle field-replaceable units (FRUs) and other computer
parts, take these precautions to avoid static damage:
vLimit your movement. Movement can cause static electricity to build up around
you.
vAlways touch the computer parts carefully. Hold the cards by their edges or metal
cover. Never touch any exposed circuits.
vPrevent people who are not correctly grounded from touching computer parts.
vBefore you install anew part, touch the static-protective package that contains
the part against an unpainted metal part of the 2104 Model DS4 or host system
for at least 2seconds. This reduces the static electricity in the package and in
your body.
vRemove the part from its package and, if possible, install it directly into the 2104
Model DS4 without putting the part down. If you must put the part down, follow
these steps:
1. Place the static-protective package that contained the part onto asmooth,
level surface.
2. Place the part onto the static-protective package. Do not place the part
directly onto any metal surface.
Safety inspection procedures
The safety inspection procedures describe how to inspect the 2104 Model DS4.
CAUTION:
The 2104 Model DS4 and Model TS4 are designed to be installed by the
customer and are certified as customer setup. Make sure that the system or
rack into which the 2104 Model DS4 and Model TS4 will be installed is also
designed and certified for customer setup. If the 2104 Model DS4 and Model
TS4 are not, then they must be installed by aCE. (22)
Inspecting the rack
Refer to your rack installation manual for information about performing asafety
inspection on the rack.
xExpandable Storage Plus 2104 Model DS4 Installation Guide

Inspecting the 2104 Model DS4
Perform the following safety checks to identify unsafe conditions.
External machine checks
Perform the following external machine checks:
1. Check the chassis for damage (loose, broken, or sharp edges).
2. Check the power cables and ensure that the insulation is not worn or
damaged.
3. Check for any obvious nonstandard changes. Use good judgment about the
safety of any such changes.
4. Verify that all external covers are present and are not damaged.
5. Ensure that all latches and hinges are in correct operating condition.
6. Check the power cable for damage.
7. Check for worn, damaged, or pinched cables.
8. Inspect the fan-and-power-supply assemblies. Check that the fasteners in the
cover of the power-supply unit (screws or rivets) have not been removed or
disturbed.
9. Check the external signal cable for damage.
10. Check the cover for sharp edges, damage, or alterations that expose the
internal parts of the device.
11. Correct any problems that you find.
Internal machine checks
Perform the following internal machine checks:
1. Check for any non-IBM changes that might have been made to the machine. If
any are present, obtain the “Non-IBM Alteration Attachment Survey”form,
number R009, from the IBM branch office. Complete the form, and return it to
the branch office.
2. Check the condition of the inside of the machine for:
vMetal or other contaminants
vIndications of water or other fluid
vFire
vSmoke damage
3. Check for any obvious mechanical problems, such as loose components.
4. Check any exposed cables and connectors for wear, cracks, or pinching.
Safety and environmental notices xi

Safety label checks
Perform the following safety label checks:
1. Verify that the label is installed on the 2104 Model DS4. See Figure 1.
2. Verify that the linecord caution label is installed on the 2104 Model DS4 power
supply. See Figure 2.
CAUTION:
This unit might have two linecords. To remove all power, disconnect both
linecords. (1)
SC000274
Figure 1. 2104 Model DS4 label
Figure 2. Linecord caution label
xii Expandable Storage Plus 2104 Model DS4 Installation Guide

3. Verify that the power supply cover caution label is installed on the 2104 Model
DS4 power supply. See Figure 3.
CAUTION:
Do not remove cover, do not service, no serviceable parts. (2)
4. Verify that the fusing caution label is installed on the 2104 Model DS4 power
supply. See Figure 4.
CAUTION:
Double Pole/Neutral Fusing. (3)
Figure 3. Power supply cover caution label
Figure 4. Fusing caution label
Safety and environmental notices xiii

5. Verify that the weight label is installed on the 2104 Model DS4. See Figure 5.
CAUTION:
This unit weighs over 32 Kg (70.5 lbs). Refer to manuals. (4)
6. Verify that the standby condition label is installed on the 2104 Model DS4. See
Figure 6.
CAUTION:
Astandby condition is indicated by the symbol to the right of the DC
directly above the switch, SW1. When SW1 is toggled to the right position
directly under the standby symbol, the unit’sac-power is not shut off. (7)
SC000220
Refer to manuals 32 Kg (70.5 lbs)
Figure 5. 2104 Model DS4 weight label
> 18 Kg (37 lbs) > 32 Kg (70.5 lbs) SC000334
Attention:
If you have data stored on the drives, label the drives before you remove
them. When you replace the drives, install each one in the same drive bay
from which you removed it. Failure to do so could result in a loss of data.
CAUTION:
If a 2104 Model DS4 is fully loaded with 14 drives and two power supplies, its
total weight exceeds 32 Kg (70.5 lbs). You must remove at least six drives from
the 2104 Model DS4 before you lift it or install it into a rack or 2104 Model TS4.
This reduces the total weight to less than 32 Kg (70.5 lbs) and the
can then be safely handled by two people. Failure to do so can result in
injury.
2104 Model
DS4
Figure 6. Standby condition label
xiv Expandable Storage Plus 2104 Model DS4 Installation Guide

Checking the grounding of the 2104 Model DS4
Perform the following steps to check the grounding of the 2104 Model DS4:
1. Ensure that all power is removed from the rack. See the installation document
for the rack or host system.
2. Ensure that the power cables 2 are plugged into each fan-and-power-supply
assembly. See Figure 7. Also ensure that the other ends of the power cables
are unplugged from the power distribution unit or battery-backup unit in the
rack. See the installation document for the rack or host system.
3. Attention: Some electrical circuits could be damaged if the external SCSI
cables are connected to the 2104 Model DS4 while the grounding check is
being done.
Ensure that no external SCSI cables are plugged at the connectors 1.
4. Check the grounding of the 2104 Model DS4:
a. At the connector ends of the power plugs that you unplugged from the
power distribution unit or battery-backup unit in step 2, do avisual
inspection and ensure that the third wire ground pin is in good condition.
b. Use an ohm meter to connect one lead to the 2104 Model DS4 chassis
and the other lead to the third wire ground pin at the face of the power
connectors that you unplugged in step 2. You should read 0.1 ohm or less
between the ground pin on the power connector and the 2104 Model DS4
chassis.
SC000210
Figure 7. Power cables and SCSI connectors on the 2104 Model DS4
Safety and environmental notices xv

If the grounding is correct, the grounding check is complete.
If the grounding is not correct, unplug the power cables from the
fan-and-power-supply assemblies in the 2104 Model DS4.
If you are servicing a220-volt 2104 Model DS4, go to step 5.
If you are servicing a-48 volt 2104 Model DS4, go to step 7.
5. Check for continuity between the chassis of the 2104 Model DS4 and the
ground pin 1 of the power connector on each fan-and-power-supply
assembly. See Figure 8.
6. Go to step 9.
7. Check for continuity between the chassis of the 2104 Model DS4 and the
ground pins 1and 7of each mainline-power connector. See Figure 9.
8. Go to step 9.
9. If any fan-and-power-supply assembly has no continuity, exchange that
assembly for anew one. See the section about fan and power supply
assemblies in the Expandable Storage Plus 2104 Model DS4 and Model TS4
Service Guide.Perform the complete grounding check again.
If each fan-and-power-supply assembly has continuity, you might have a
problem with the power cable or with the grounding of the host system.
Figure 8. Ground pin (220 V2104 Model DS4 )
Figure 9. Ground pins (-48 V2104 Model DS4)
xvi Expandable Storage Plus 2104 Model DS4 Installation Guide

If you are servicing a220-volt 2104 Model DS4, go to step 10.
If you are servicing a-48 volt 2104 Model DS4, see the installation document
for the rack or host system to isolate the fault. Perform the complete grounding
check again.
10. Check the power cable for continuity.
If the power cable does not have continuity, exchange it for anew one, then
perform the complete grounding check again.
If the power cable does have continuity, see the installation document for the
rack or host system to isolate the fault.
Safety and environmental notices xvii

Removing power from a2104 Model DS4
Note: Unless you have aparticular reason to do so, do not remove power from the
host system or from the 2104 Model DS4 unless the instructions that you are
following tell you to.
Perform the following steps to remove the power from a2104 Model DS4:
1. Verify with the customer that all operations between the 2104 Model DS4 and
the host system have stopped.
2. Set the dc on/standby switch 1 of each fan-and-power-supply assembly to
standby. See Figure 10.
Notes:
a. Some 2104 Model DS4s have afan-and-power-supply assembly and afan
assembly. The fan assembly has no dc on/standby switch.
b. Afan-and-power-supply assembly might have its CHK light on although its
dc on/standby switch is set to standby.
SC000206
Figure 10. Removing the power from a2104 Model DS4
xviii Expandable Storage Plus 2104 Model DS4 Installation Guide