While working on Exadata Storage cell patching, the patching failed due to failed internal USB drive on a storage cell.
Oracle uses internal USB drive to backup Exadata Storage cell automatically. We don’t have to backup Storage cell manually.
In this article I will demonstrate how to replace a failed USB drive an Exadata Storage cell
- You will receive an automated smtp alert (if configured) similar to below.
- You can also use the following command to check for USB drive failure
[root@dm01cel01 ~]# cellcli -e list alerthistory
1_1 2018-04-10T18:25:42-05:00 warning “Internal USB status is not present. Affected USB Slots : 0”
- You can also use the following ILOM command to check for USB drive failure
[root@dm01cel01 ~]# ssh dm01cel01-ilom
Password: *******
Oracle(R) Integrated Lights Out Manager
Version 3.2.10.22.a r121524
Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
Warning: HTTPS certificate is set to factory default.
Hostname: dm01cel01-ilom
-> show /SYS/MB/USB0
- Open an SR with Oracle if an ASR is already generated
- Upload sundgia.sh and ILOM Snapshot to the SR for investigation
- Oracle confirms the that USB drive is faulted
- Oracle opens a Field task
- Oracle dispatch team contacts the SR owner with the hardware dispatch details
- Confirm the Hardware replacement schedule over email and/or SR
- Schedule the Hardware replacement
- Oracle FE arrives at the data center with the new USB drive
- Shutdown the storage cell by following the steps from the MOS below
Steps to shut down or reboot an Exadata storage cell without affecting ASM (Doc ID 1188080.1)
- Oracle FE replaces the faulty USB drive and power up the storage cell
- Confirm that the USB drive is good
-> show /SYS/MB/USB0
/SYS/MB/USB0
Targets:
Properties:
type = USB Port
fault_state = OK
clear_fault_action = (none)
Commands:
cd
set
show
->
[root@dm01cel01 ~]# cellcli -e list alerthistory
1_2 2018-04-11T02:45:49-05:00 clear “Internal USB status is back to normal. Affected USB Slots : 0”
- You will receive an automated smtp alert (if configured) similar to below that the USB status is back to normal
Conclusion
In this article we have learned how to replace a faulty USB drive in Exadata Storage cell. Oracle uses USB drive to backup Exadata Storage cell automatically. We don’t have to backup Storage cell manually.
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