ZFS Cache and Log disk Failure

[dnut]

Hello there,
I'm experimenting with Cache and Log SSD disk, to improve ZFS performance on a RPM disk-based Proxmox Server.

Performance wise it seems to improve things a lot, but what does happen if the SSD disk, used to do both log and cache, will fail?

During the test, Proxmox won't boot anymore.

Is there a way to instruct proxmox to boot even if Cache and Log are not available?

Otherwise, it seems to me that the only option for doing Caching and Log, is through redundant SSD.

Any suggestions?

Thank you

 

[Nemesiz]

Log device is needed to check missing data on pool import action. If your Log device is crashed you can import pool manually by force .

 

[guletz]

... or simply remove your failing cache/log SSD from your server.