[FIXED] Cache Pool Question

[thunderclap]

I have two SSD drives, both 240GB. I thought I configured it right so I would have a total of 480GB for cache but as you can see from my screen capture it's showing as only 240GB. Is my understanding of cache pools incorrect, or have I configured something wrong? Any help is appreciated.

 

Edited December 1, 2021 by thunderclap

[Squid]

The default setting for a cache pool is RAID-1 which means the pool is redundant.  You want to set the pool to be RAID-0

https://forums.unraid.net/topic/46802-faq-for-unraid-v6/?tab=comments#comment-480421

 

[thunderclap]

So I converted it to RAID-0 under the Balance option and now the majority of my dockers won't start up and I'm getting the error "Unable to write to cacheDrive mounted read-only or completely full." under Fix Common Problems. What did I bork?

Edited November 30, 2021 by thunderclap

[trurl]

attach diagnostics to your NEXT post in this thread

[Squid]

Still post the diagnostics, but did you wait for the balance to complete?  (Last time I did this was on a fresh cache-pool with basically no data on it)

On 7/18/2016 at 4:46 AM, JorgeB said:

When changing pool mode confirm that when the balance is done data is all in the new selected mode, check "btrfs filesystem df"on the cache page, this is how a RAID10 pool should look like:

 

 

[thunderclap]

I just saw these responses after researching. I don't think the balance was done when I switched it to RAID-0, so that probably corrupted the drive. After backing up the cache drive I'm now pre-clearing them and will set them up again. That should do the trick.

[trurl]

15 minutes ago, thunderclap said:

pre-clearing them

pointless and not recommended for SSDs

[thunderclap]

1 minute ago, trurl said:

pointless and not recommended for SSDs

Well the format wasn't showing up anywhere so the only way I figured I'd get it to show up was to preclear (and it did). But I'll remember not to do it on SSD in the future.