A firmware version check should be performed on all NetBackup 5020 Deduplication Appliances to determine if a BIOS upgrade is required.
Note: This procedure is a supplement to the Related Article linked below.
The NetBackup 5020 Appliance RAID Controller, BIOS, and SAS Expander Firmware, in addition to some additional components, need to be at their latest respective versions to prevent a condition known as cascading RAID failure.
In order to perform this check, access to the Appliance's Integrated Storage Manager (ISM) Graphical User Interface is required.
No error is displayed, but the RAID 6 Virtual Disk goes offline after multiple disk failures. This has been characterized where the failure of a single disk could cause a cascading failure on multiple (good) disks within the Appliance. This defect occurs when a real disk failure is encountered and both the RAID Controller and SAS Expander Chip on the disk's backplane reset, resulting in many disks being marked as failed because they are no longer detected by the RAID Controller. Remediation often requires a manual recovery of the RAID Volume when this defect is encountered. In some cases, data loss may occur.
Veritas Corporation has provided an Appliance Upgrade Process attached to this document that can be used to mitigate the risk of a cascading disk failure. It involves flashing the Appliance BIOS and Component Firmware to their respective latest versions. This is a manual process. Please Consult Section 4.2, Step 1 and Step 2 in the attached NetBackup 5020 Chassis Upgrade Guide to see if your NetBackup 5020 Appliances are affected by this defect.
If the 5020 Appliance shows the following versions below, it is not affected and no further action is required:
- BMC Firmware: 2.13
- BOOTROM: 2.10
- BIOS0: 2.11
- BIOS1: 2.11
- MB_CPLD: 300
- EXP: 4.17
- EXP_CPLD: Refer to figures 4-2 and 4-15 or Section 4.3 in the attachment on how to determine the version
If any older versions of these components are found, further action is required.
- Customer Environment:
All backup/restore jobs must be stopped, SLPs paused and the Appliance taken out of production
- Required Files attached to this document
- Netbackup 5020 Chassis Upgrade Guide.doc
Consult the attached NetBackup 5020 Chassis Upgrade Guide to perform the upgrade.
Approximate time to complete an upgrade is 15-20 minutes.
- To access the console after the upgrade has been performed, use HTTPS (https://...)
- A security exception is required, as the certificate is self-signed
- Be aware that Java will be updated after the upgrade has been performed. Testing has shown that the console login page may not be seen from the system's browser used to perform the upgrade.
- Using the latest versions of IE or Firefox browsers is recommended
Veritas strongly recommends the following best practices:
1. Always perform a full DR backup prior to making any changes to your environment.
2. Always make sure that your environment is running the latest version and patch level.
3. Perform periodic "test" restores.
This issue affects NetBackup Deduplication 5020 Appliances. Because this is a firmware issue, it can occur independent of the version of the software running on the Appliance.
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