Adaptec 7220ss Guía Del Usuario
5-21
Configuring the Controller
■
Low
—Use if streaming data without interruption, such as for a
Web server, is more important than data redundancy. At this
setting, the utilities run at a slower rate with minimal effects on
host I/O.
setting, the utilities run at a slower rate with minimal effects on
host I/O.
To change the utility priority:
1
From the System Menu, select Configuration Menu and press
Enter
Enter
.
The Configuration menu appears.
2
Select Utility Priority and press Enter.
The Utility Priority menu appears. The current setting is marked
with an * next to it.
with an * next to it.
3
Select the option you want and press Enter.
Rescanning All Channels
When you install or remove disk drives, you can have the
controller rescan all disk channels. Rescan temporarily pauses all
I/O processes and then resumes normal operation.
controller rescan all disk channels. Rescan temporarily pauses all
I/O processes and then resumes normal operation.
If you are using a RAID appliance with an SEP, the controller
performs a rescan automatically and detects removed disk drives
almost immediately. Installed disk drives are detected after a three-
minute delay that gives new disk drives time to spin up.
performs a rescan automatically and detects removed disk drives
almost immediately. Installed disk drives are detected after a three-
minute delay that gives new disk drives time to spin up.
Note:
If you are installing a new disk drive, wait for it to
spin up before rescanning the channels. This avoids
unnecessary delays during the rescan that can cause the
OS to time out.
unnecessary delays during the rescan that can cause the
OS to time out.
To rescan all channels:
1
From the System Menu, select Utilities Menu and press Enter.
The Utilities menu appears.
2
Select Rescan and press Enter.