may give a clue as to the root cause of the issue. If a drive LED remains on when
the computer freezes, suspect a problem with that drive.
Æ The system profiler recognizes the ExpressSAS Raid controller, but it does not
detect
any of the connected SAS devices.
Check cable integrity. Check the cables for solid connections.
Investigate the SAS/SATA device for power. If available, connect to the device’s
management feature and run any diagnostic test(s) available.
Watch the LED indicators on the SAS/SATA devices before, during, and after
startup. Drive lights should also flash at startup as the SAS/SATA port is
scanned. This may give a clue as to the root cause of the issue. If a drive LED
remains on when the computer freezes, suspect a problem with that drive.
Æ The system profiler recognizes the ExpressSAS Raid controller , but only detects
connected SAS/SATA devices on
one of a two port adapter. The other port reports
no devices.
Note: I you are using a R348 SAS Controller be sure the controller is configured to
use the appropriate ports you need. This card can be configured to use all internal
connectors or one internal and one external.
Swap the devices and cables from the SAS port that appears to be working with
the one having issues. If the issue follows the port, replace the ExpressSAS
Raid controller.
If the issue follows the attached SAS/SATA devices, troubleshoot the attached
devices:
Check cable integrity. Check the cables for solid connections.
Investigate the SAS/SATA device for power. If available, connect to the device’s
management feature and run any diagnostic test(s) available.
Watch the LED indicators on the SAS/SATA devices before, during, and after
startup. Drive lights should also flash at startup as the SAS/SATA port is
scanned. This may give a clue as to the root cause of the issue. If a drive LED
remains on when the computer freezes, suspect a problem with that drive.
Try another SAS cable.
If all else fails, replace the ExpressSAS Raid controller
Æ My Mac kernel panics with the ExpressSAS Raid controller installed and SAS
devices attached.
Check cable integrity. Check the cables for solid connections.
Page 3 of 9 ATTO Technology, Inc. July 12, 2007
(76 Seiten)
(118 Seiten)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Kommentare zu diesen Handbüchern