IBM PC Server 520, Руководство пользователя

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Additional Disk-Array Tasks
means that you must replace the hard disk drive and rebuild the
logical drive. (You will have received a message telling you
what has happened to the drive.) OFL means that the logical
drive is irrecoverable; the data in that drive is lost.
5. Locate the Wrt pol (Write Policy) field in the Logical Drive list.
The write policy is shown as either WT (write-through, which is
the default setting) or WB (write-back).
6. Select the logical drive whose write policy you want to change.
Attention: If you change the write policy to write-back, wait
at least 10 seconds after your last operation before you turn off
the server. 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.
7. Press Enter to change the write policy.
Notice that WT changes to WB. You can press Enter to
alternate between WT and WB.
8. When you have made your choice, press Esc to return to the
Advanced Functions menu.
9. Select Exit. The Confirm pop-up window appears asking you to
confirm your action.
10. To return the setting to its original state, select No. To save
your changes, select Yes.
11. Back up the disk-array configuration information to diskette.
Refer to “Backing Up Your Disk-Array Configuration” on
page 116 for more information.
Chapter 3. Configuring the Disk Array
119