Enabling Or Disabling Fast-Write For One Disk Drive - IBM Advanced SerialRAID Adapters SA33-3285-02 User Manual

Enabling or Disabling Fast-Write for One Disk Drive

This option lets you enable or disable the fast-write function for one disk drive.
1. For fast-path access to the Change/Show Characteristics of an SSA Logical Disk
2. If you want to enable the fast-write function for a particular disk drive, set the
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User's Guide and Maintenance Information
menu:
a. Type
b. From the menu displayed, select the logical disk that you want to change.
Otherwise:
a. Select Change/Show Characteristics of an SSA Logical Disk from the SSA
Logical Disks menu.
b. From the menu displayed, select the logical disk that you want to change.
A list of options for the logical disk drives is displayed:
Enable Fast Write option to yes for that disk drive.
If you want to disable the fast-write function for a particular disk drive, set the
Enable Fast Write option to no for that disk drive.
Notes:
a. If you are running a two-way fast-write operation, and you enable or disable the
fast-write function, the hdisk on the second using system becomes unavailable.
From the second using system, delete that hdisk, and reconfigure as follows:
1) Type:
2) Run cfgmgr to reconfigure the new hdisk.
b. You can disable the fast-write function from this menu only if no data for your
selected device is present in the fast-write cache. If data for your selected
and press Enter.