appdata folder was on cache drive which crashed...how to restore from backup (which I actually have)

[theamzngq]

Because my appdata folder was on the cache drive (which is no longer mountable), none of my dockers will start (duh).  But, the CA backup plugin wants to restore to /mnt/cache/appdata/.  Do I need to recreate that share first somewhere else?  Or do I need to add a new disk, recreate the cache, and then let it restore there?  I'm assuming the Docker service needs to know where the appdata folder is, which is why it won't start...

 

Any guidance would be appreciated!

[JorgeB]

https://forums.unraid.net/topic/117581-cache-ssd-broken-how-to-replace/?do=findComment&comment=1076957

 

[theamzngq]

Thank you, that got me squared away.  Turns out my backups kept stopping at 4GB, so I couldn't use them anyway!  Not sure what file system was on it, but it must've had a limit of 4GB, would you say?

[JorgeB]

2 hours ago, theamzngq said:

but it must've had a limit of 4GB, would you say?

Possibly, was it FAT32?

[theamzngq]

based on where I recall using that drive last, it must have been.  Too bad I didn't get any notifications...but nothing I lost was earth-shattering luckily. 

 

On a related note, is it recommended to use compression on appdata backups (the default comes up with 'no' selected)?  If the files had simply been copied and not compressed to tar.gz, the backups might not have failed because no individual files would have exceeded 4GB.

[JorgeB]

18 minutes ago, theamzngq said:

is it recommended to use compression on appdata backups (the default comes up with 'no' selected)?

Not sure, I don't use it, I guess it depends on the quantity and size of files, they should compress a lot, but if size is not a problem...

[Squid]

I never use the compression.  It's super slow, and generally if you're storing the backup on the array then size isn't the overriding concern.  I would think that if you're uploading the zip to a cloud server, then you would definitely want compression.

[theamzngq]

I prefer to store it on an unassigned USB drive so that if there are any issues with the array or the server, I can rebiuld without having to worry about recovering the backup from the array.  I will disable compression from now on.