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v
All channel speed LEDs are on and the Needs Attention LED is off – Go to
step 16.
v
All channel speed LEDs are off or the Needs Attention LED is on – Verify
the controller has been installed correctly. Remove and reinstall the
controller. Go to step 15.
Note:
If a host channel or drive channel does not have a cable connected,
the channel speed LEDs are not illuminated.
15. Did this action correct the problem?
v
Yes – Go to step 16.
v
No – If the problem has not been fixed, contact your IBM service
representative.
16. Remove the antistatic protection.
17. Install the front bezel by aligning the pins on the storage subsystem chassis
with the spring-steel retainers on the cover and then pressing the cover toward
the chassis until the pins snap into place.
18. Using the Enterprise Management window, view the status of the storage
subsystems. Do any storage subsystems indicate Needs Attention?
v
Yes – Go to step 19.
v
No – All components display Optimal status. You are finished with this
procedure.
19. Use the Subsystem Management window to check the status of all storage
subsystems in the configuration.
20. Do any storage subsystems have a Overall Configuration Needs Attention
status?
a. Yes – Select the Recovery Guru toolbar button in the Subsystem
Management window, and complete the recovery procedure. If the problem
persists, contact your IBM service representative.
b. No – Contact your IBM service representative. Print a storage subsystem
profile, and save the storage subsystem support data. The profile and
support data are helpful when troubleshooting storage subsystem
problems. (For information about printing a storage subsystem profile and
saving the support data, refer to the Subsystem Management window
online help.)
Cache memory and cache battery
Each RAID controller in the DS5100 and DS5300 contains cache memory to store
read and write operations. (Both RAID controllers in the DS5100 and DS5300 must
have the same amount of cache memory.) The interconnect-battery unit contains
two Lithium Ion battery packs that can maintain power to the RAID controller
caches for up to thirty minutes to flush cache memory to flash memory modules in
the event that the DS5100 and DS5300 lose power.
Important:
Do not replace the battery until it is marked failed by the controller. If the batteries
are shown as expired, use the reset battery age function in the SM client
subsystem management window to reset the age.
Chapter 4. Operating the storage subsystem
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