6.
Force the cache battery pack into an error state
To force the cache battery pack into an error state (to prevent possible data loss), do the following steps:
1.
Run the iprconfig utility by typing
iprconfig
.
2.
Select
Work with disk unit recovery
.
3.
Select
Work with resources containing cache battery packs.
4.
Select your adapter and type
2
. Then press Enter to force the battery error.
Note:
Using this option places the battery into the error state, which requires it to be replaced.
5.
If you are sure you want to force a battery error, type
c
to confirm. If you do not want to force a battery error,
type
q
to cancel.
6.
Determine that it is safe to replace the Cache Battery Pack. Refer to
Displaying rechargeable battery information
below.
7.
It is safe to replace the Cache Battery Pack when Yes is displayed next to Battery pack can be safely replaced. You
may need to reselect the option to
Display Controller Rechargeable Battery Information
multiple times as it may
take several minutes before it is safe to replace the Cache Battery Pack.
Displaying rechargeable battery information
1.
Navigate to the
IBM SAS Disk Array Manager
by using the steps above.
2.
Select
Diagnostics and Recovery Options
3.
Select
Controller Rechargeable Battery Maintenance
.
4.
Select
Display Controller Rechargeable Battery Information
.
5.
Select the
IBM SAS RAID Controller
.
7.
Go to step 10 on page 18.
8.
Force the cache battery pack into an error state on IBM i
To force the cache battery pack into an error state in order to prevent possible data loss, proceed as follows on the
system or partition containing the adapter:
1.
Be sure that you are signed on to the system with at least service level authority.
2.
Type
strsst
on the command line and press Enter.
3.
Type your service tools userid and service tools password on the
System Service Tools (SST) Sign On
display.
Press Enter.
4.
Select
Start a Service Tool
from the
System Service Tools (SST)
display. Press Enter.
5.
Select
Hardware Service Manager
from the
Start a Service Tool
display. Press Enter.
6.
Select
Work with resources containing cache battery packs
from the
Hardware Service Manager
display. Press
Enter.
7.
Select
Force battery pack into error state
for the I/O card you are working with from the
Work with Resources
containing cache battery packs
display. Press Enter.
8.
On the
Force Battery Packs Into Error State
display, verify that the correct I/O adapter has been selected and
press the function key that confirms your choice.
9.
Return to the Work with Resources containing cache battery packs display and select
Display battery
information
. Ensure that the field
Safe to replace cache battery
is set to
Yes
.
Note
: This may take several minutes
and you may need to press the refresh key to see the field update.
9.
Begin with power on
To prevent data loss, the cache battery pack must be in an error state before it is removed from the system.
If you have powered the machine off, power it on before you continue.
Chapter 1. Removing and replacing FRUs
17
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