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Viewing SCSI Device Information
Rescanning the SCSI Adapters and Array
Controllers
After you have removed a device from the system, the user interface
may continue to display it as disconnected in the Physical Resources
window. If this happens, select
from the Configuration View
toolbar to rescan the system and update the display.
It is important to note that the rescan function works differently for a
SCSI adapter than for an array controller. A SCSI rescan deletes the
database and then performs a Discovery phase to find all devices
connected to the system. An update is made to the user interface in
the Physical Resources dialog box. See Managing SCSI Adapters on
page 4-10 for information on discovery.
Differences in Rescan Between SCSI Adapters and Array
Controllers
There are differences in the way the Adaptec CI/O Management
Software rescans SCSI adapters versus array controllers. This is due
mainly to differences in complexity between an array controller and
a SCSI adapter.
With array controllers, information is stored in reserved sectors on
the array disk drives. When rescan is selected, the program quickly
retrieves information from the reserved sectors.
In contrast, information related to SCSI adapters is stored in the
iomaspi.dev file. When the server boots up, it reads that file for
information. When rescan is selected, the program deletes the file,
rewrites it, then updates the program.
Rescan Details
When only RAID adapters or SCSI adapters are being rescanned,
the program displays an hourglass over each adapter icon to show
that the rescan has not completed its discovery of all SCSI devices on
that adapter. If both RAID adapters and SCSI adapters are being
rescanned, an indicator appears on the SCSI adapters after the RAID
rescan completes. The indicators are removed after the SCSI rescan
completes.
4-9
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