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Cache SSD dead

Featured Replies

Hi guys,

My Cache SSD (256GB nvme drive, 2 years old) seems to have died completely (shows as missing in my Pool devices - Main after reboot), while watching a movie on plex being transcoded on cache. The syslog-previous file in diagnostics shows a lot of errors. This was the only drive in the cache pool. I have a few questions on what to do next:

 

1. With what it says in the logs, is my drive really dead? Is there anything to do or try to fix it?

2. If I buy a new one, what is the procedure to restore my data and docker images (all important files are on the array, my appdata was backed up the day before with the Appdata Backup plugin) ?

3. Are the root folders for the shares recreated on the new drive automatically (ex. domains, isos, system)?

 

I'm using Unraid 7.0.0

 

Thank you!

tower-diagnostics-20250224-1249.zip

  • Community Expert

Try power cycling the server, not just rebooting, that may bring it back.

  • Author

That worked thank you!

 

Does that mean that the drive could be near a failure? (and is it worth it to buy a new one for redundancy in the pool?)

  • Community Expert
7 minutes ago, lilplants said:

Does that mean that the drive could be near a failure?

Not necessarily, try this, on the main GUI page click on the flash drive, scroll down to "Syslinux Configuration", make sure it's set to "menu view" (top right) and add this to your default boot option, after "append initrd=/bzroot"

nvme_core.default_ps_max_latency_us=0 pcie_aspm=off pcie_port_pm=off

e.g.:

append initrd=/bzroot nvme_core.default_ps_max_latency_us=0 pcie_aspm=off pcie_port_pm=off


Reboot and see if it doesn't happen again.

  • Community Expert
1 minute ago, lilplants said:

but a parity check has started.

 

Unclean shutdown was detected

Feb 24 14:09:53 Tower emhttpd: unclean shutdown detected

 

  • Author
1 minute ago, JorgeB said:

Unclean shutdown was detected

This is weird because I rebooted from the Main page

  • Community Expert

There could have been not enough time to shut down the services, or another thing preventing it, but if it were a one-time thing, I would ignore, if it happens again, it should be investigated.

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