Preventing an Infiniband Switch from becoming un-bootable (during upgrade for Sun Datacenter Infiniband 36 or during reboot or upgrade for Sun Network QDR InfiniBand Gateway Switch) due to Real Time Clock corruption
(Doc ID 2302714.1)
Last updated on MARCH 07, 2023
Applies to:
Sun Datacenter InfiniBand Switch 36 - Version All Versions and laterSun Network QDR InfiniBand Gateway Switch - Version All Versions and later
Zero Data Loss Recovery Appliance X6 Hardware - Version All Versions to All Versions [Release All Releases]
Exalogic Elastic Cloud X5-2 Eighth Rack - Version X5 to X6 [Release X5 to X6]
Oracle SuperCluster M7 Hardware - Version All Versions and later
Information in this document applies to any platform.
Symptoms
If the Real Time Clock is corrupted, the following symptoms will be observed:
- The "hwclock" system commands takes long to execute. (Typically more than 30 seconds)
- The "hwclock" system command returns with error status and no output or with clock being incorrect.
Changes
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| To recover a switch that has become un-bootable: |