Sun Storage 7000 Unified Storage System: How to troubleshoot a (kernel) memory shortage
(Doc ID 1610490.1)
Last updated on SEPTEMBER 25, 2019
Applies to:Sun Storage 7410 Unified Storage System - Version All Versions and later
Sun ZFS Storage 7420 - Version All Versions and later
Sun ZFS Storage 7320 - Version All Versions and later
Sun ZFS Storage 7120 - Version All Versions and later
Oracle ZFS Storage ZS3-2 - Version All Versions and later
7000 Appliance OS (Fishworks)
The following symptoms can be used to determine if we are in a kernel memory shortage situation :
When a memory shortage occurs, the system typically collapses this way:
- Data services become unavailable,
- The BUI and CLI are unavailable also.
- A connection to the ZFSSA through SSH is impossible.
- Any connection to the ILOM of the ZFSSA through SSH, then starting the console shows no prompt at all.
Those are the typical symptoms helping to determine we are in a kernel memory shortage situation.
This can happen while no recent change has been committed to the system recently.
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