Adaptec 133U2 User Guide - Page 132

Notes on Replacing Disk Drives

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Adaptec CI/O Management Software User's Guide Notes on Replacing Disk Drives s We recommend that if you use hot swapping to replace a drive that supports tagged command queuing (TCQ), you replace it with a drive that also supports TCQ. Otherwise, a rescan may not detect that the drive has been swapped. Also, a system hang may occur if the replaced drive does not support TCQ and the system sends commands with tags to it. This problem will not occur if you swap drives while the server is down or while it is off. s To minimize the possibility of data corruption, we recommend that when you replace a disk drive you use a new drive of the same capacity or larger. s We recommended that you remove old or defective disk drives from the system as soon as possible. You must low-level format a removed drive before you can use it again. 10-8

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10-8
Adaptec CI/O Management Software User’s Guide
Notes on Replacing Disk Drives
We recommend that if you use hot swapping to replace a drive
that supports tagged command queuing (TCQ), you replace it
with a drive that also supports TCQ. Otherwise, a rescan may
not detect that the drive has been swapped. Also, a system
hang may occur if the replaced drive does not support TCQ
and the system sends commands with tags to it. This problem
will not occur if you swap drives while the server is down or
while it is off.
To minimize the possibility of data corruption, we recommend
that when you replace a disk drive you use a new drive of the
same capacity or larger.
We recommended that you remove old or defective disk drives
from the system as soon as possible. You must low-level format
a removed drive before you can use it again.