To restore the ServeRAID configuration information:
1. Start the ServeRAID configuration program (refer to “Starting
the Configuration Program” on page 25).
2. Select Advanced Functions from the Main Menu and press
Enter
.
3. Select Restore config. from diskette and press Enter.
4. Enter the file name of the backed-up configuration in the box at
the bottom of the screen and press Enter.
5. The Confirm pop-up window appears.
6. Select Yes to restore the configuration information. Select No to
return to the previous menu.
7. Press Esc to return to the Main Menu.
Changing the Write Policy
When you configure a logical drive, the ServeRAID adapter sets the
write policy to write-through (WT) mode, where the completion
status is sent after the data is written to the hard disk drive. Under
certain workloads, you can improve performance by changing this
write policy to write-back (WB) mode, where the completion status is
sent after the data is copied to cache memory, but before the data is
actually written to the storage device.
Although you might gain performance with write-back mode, it
creates a greater risk of losing data due to a power failure. This is
because the system gets a completion status message when the data
reaches cache memory, but before data is actually written to the hard
disk drive.
If you change the write policy to write-back, wait at least 10 seconds
after your last operation before you turn off your system. It takes
that long for the system to move the data from the cache memory to
the storage device. Failure to follow this practice can result in lost
data.
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PC Server 330 User's Handbook
Summary of Contents for PC Server 330
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Page 240: ...Updating the Server Configuration 226 PC Server 330 User s Handbook...
Page 326: ...Resolving Configuration Conflicts 312 PC Server 330 User s Handbook...
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