Bypassing The Cache In A One-Way Fast-Write Network - IBM Advanced SerialRAID Adapters SA33-3285-02 User Manual

Bypassing the Cache in a One-Way Fast-Write Network

If you are using the two-way fast-write function (that is, two adapters have access to a
fast-write disk drive), you can choose whether you want fast-write operations to
continue if the partner adapter fails or becomes not accessible. By default , fast-write
operations continue.
1. For fast-path access to the Change/Show Characteristics of an SSA Logical Disk
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
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:
2. If you do not want the fast-write function to continue on a particular disk drive if the
partner adapter becomes not accessible, set the Bypass Cache in 1 Way
Fast-Write Network flag to yes for that disk drive. With the flag set to yes, an error
is logged when the cache is bypassed.
If you want the fast-write function to continue on a particular disk drive if the partner
adapter becomes not accessible, set the Bypass Cache in 1 Way Fast-Write
Network flag to no for that disk drive.
Logical Disks menu.
and press Enter.
Chapter 10. Using the Fast-Write Cache Feature
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