Cisco Ucs 9300-8I And 9300-8E Bad Drive And Predictive Failure Behavior; Setting The Preferred Boot Device For Cisco Ucs 9300-8I And 9300-8E - Cisco UCS C240 M4 Installation And Service Manual

Cisco UCS SAS 9300-8i and 9300-8e HBA Considerations

Cisco UCS 9300-8i and 9300-8e Bad Drive and Predictive Failure Behavior

The bad drive and predictive failure behavior for the Cisco UCS RAID SAS 9300-8i and 9300-e HBA
cards is different than that for LSI MegaRAID cards. The list below compares behavior for these HBA
cards and LSI MegaRAID cards.
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Setting the Preferred Boot Device for Cisco UCS 9300-8i and 9300-8e

Currently, the boot device order for these HBAs does not map to a physical slot as seen in the Boot
Option dialog of the server BIOS Setup Utility. This makes it difficult to differentiate between multiple
devices.
Use the following procedure to select the preferred boot device in the LSI BIOS CU SAS Topology
screen. When you select the preferred boot device in the BIOS CU SAS Topology screen, it is displayed
at the top of the list in the server BIOS Setup Utility Boot Option dialog, making it easy to identify.
Step 1 In the LSI SAS BIOS CU, navigate to the SAS Topology screen.
Step 2 Press Alt+B to select or deselect a device as the preferred boot device. On this screen, you can identify
the device by slot number.
Step 3 Press Alt+A to select or deselect a device as the alternate boot device. On this screen, you can identify
the device by slot number. The alternate boot device is used if the preferred boot device is not detected.
Return to the BIOS CU SAS Topology screen.
Step 4
The Device Info column shows which devices you selected with the designators
Step 5 In the server BIOS Setup Utility, open the Boot Option dialog.
The preferred device that you selected in the LSI BIOS CU is listed at the top of the list.
Step 6 Select the device at the top of the list as your boot option.
Cisco UCS C240 M4 Server Installation and Service Guide
C-4
Bad/invalid/0MB drive handling:
MegaRAID: The bad drive is marked BAD in the GUI/CLI interfaces and the fault LED on the
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drive is solid amber.
– HBA: The bad drive is not shown in the GUI/CLI and there is no LED indication.
Drive predictive failure:
MegaRAID: If the drive is part of a RAID volume with a spare, the software performs an
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auto-copy backup and then marks the drive failed/BAD with the fault LED on the drive solid
amber.
– HBA: There is no error handling and there is no LED indication. The operating system must
handle the fault.
Appendix C RAID Controller Considerations
and
Boot Alt
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