Sun Storage A1000 Array
 

GCS>Sun Microsystems>Storage - Disk>Modular Disk - Other
 

   Determine the device name:

   #/usr/lib/osa/bin/lad
c1t0d0 1T93803809 LUNS: 0 1

   Determine the battery age, use the device name listed in lad command:

   /usr/lib/osa/bin/raidutil -c <device> -B  

  For example:
#/usr/lib/osa/bin/raidutil -c c1t0d0 -B
LUNs found on c1t0d0.
LUN 0    RAID 0    10 MB
LUN 1    RAID 5    1000 MB
Battery age is between 720 days and 810 days.
raidutil succeeded!

               battery age between 630 and 720 days - near expiration
battery age greater than 720 days    - expired

               Battery should be replaced for all the above cases.

NOTE: A1000 battery is not hotswappable.

  The RM6 GUI can be started by issuing the command

#/usr/lib/osa/bin/rm6 &

  If you want disable the Write Caching option, follow the steps below by
using the RM6's GUI or command line commands.
But in case, where the battery has already expired,
cache function for write operations has been switched off automatically.

2. Using RM6 GUI, open the Maintenance and Tuning application.

3. Select the RAID module for the Sun StorEdge A1000 array.

4. Click the Cache Parameters button, or select Option -> Cache
Parameters from the drop-down menu.

5. Disable the Write Caching option.

  OR by using the RM6 command line commands:

#/usr/lib/osa/bin/lad
	c1t0d0 1T93803809 LUNS: 0 1

Write cache disabling:
#/usr/lib/osa/bin/raidutil -c <device> -w off <lun numbers>

#/usr/lib/osa/bin/raidutil -c c1t0d0 -w off 0,1
LUNs found on c5t5d0.
	LUN 0    RAID 5    8100 MB
	LUN 1    RAID 5    8108 MB

6. Stop the host machine that is connected to the Sun StorEdge A1000 array.

   # init 0

7. Before turning off the StorEdge A1000 array, wait approximately two minutes
to make sure that remaining data in the cache are flushed to the disks.
Turn off the Sun StorEdge A1000 array and follow the battery replacement
procedure in the Sun StorEdge A1000 and D1000 array Installation, Operations,
and Service Manual.
When turning on the StorEdge A1000 array, wait until all the disks have spun up!

8. Boot the host machine, without the -r option.

9. After the battery replacement, run the following RM6 command to reset
the battery age: raidutil -c <device> -R

               For example:

               #/usr/lib/osa/bin/raidutil -c c1t0d0 -R
LUNs found on c1t0d0.
LUN 0    RAID 0    10 MB
LUN 1    RAID 5    1000 MB 

               raidutil succeeded!                

10. Check the new battery age:

               For example:

               #/usr/lib/osa/bin/raidutil -c c1t0d0 -B
LUNs found on c1t0d0.
LUN 0    RAID 0    10 MB
LUN 1    RAID 5    1000 MB
Battery age is between 0 days and 90 days.
raidutil succeeded!      

11. Re-enable the Write Caching option by using the RM6 GUI or by using
the RM6 command line commands:

Write cache enabling:

#/usr/lib/osa/bin/raidutil -c c1t0d0 -w on 0,1
LUNs found on c5t5d0.
	LUN 0    RAID 5    8100 MB
	LUN 1    RAID 5    8108 MB

12. After 12 hours, check to see if the battery is working, for example running
RM6 GUI's health check or running command "/usr/lib/osa/bin/healthck -a ".

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