I'm on unRAID 5.0.4 right now. I've had the unRAID server going for a few years and have now put a cache drive (an extra SSD I had) into the server for the first time. I want to move my install of Crashplan off of disk1 and onto the new cache drive so that parity and disk1 can spin down. I've searched around the forum to see if there was a best method for doing this, but didn't find anything. Anybody done this? Can I just stop Crashplan, move it to the cache drive & edit some config settings? Not sure how many settings are path dependent.

 

Thanks

I've had my CP installed where the binaries, cache and other system files are stored under /mnt/cache/Applications/CrashPlan, but I still use my /mnt/user/crashplan share to store my data with the cache drive enabled.  This has allowed the application to work very fast, allows backup data to get streamed in pretty fast and then let mover migrate that data to the array overnight.  This allows CrashPlan to be fast while the backup data is still protected on the array.

 

I believe the file you want is /mnt/cache/Applications/CrashPlan/cp_bin/conf/my.service.xml.  Make a backup of that, make your modifications (and there are several parameters to modify) and give it a whirl.  I believe this is exactly how I modified my configuration.

I actually may have jumped the gun there.  Was just browsing through my config and noticed there is a section in the GUI to modify this.  That may be all you need to do (stop CP, move things around, update CP install location, start CP).

I've had my CP installed where the binaries, cache and other system files are stored under /mnt/cache/Applications/CrashPlan, but I still use my /mnt/user/crashplan share to store my data with the cache drive enabled. 

 

I have the same setup as mentioned above, however the Crashplan backups from the PC still write, at a rather slow 1 to 4 MB/s speed, directly to parity protected array disk. This results in the cache (where Unraid apps are installed), parity and 1 data disks (share set to use 1 drive) all being spun up.

 

What I want is: Crashplan backups from the PC to use the cache (Meaning the mover will move files to the parity protected share later).

 

Further info:

 

1) A share called crashplan has been setup, with the cache enabled. The PC user has read/write access.

 

2) On the Unraid's Crashplan install under: settings -> general -> configure : is where the /mnt/user/crashplan directory is set.

 

3) Crashplans backup/restore functionality is all operating correctly.

 

4) Using Unraid 5.0.6

 

 

Can any shed any light on why this is occurring and/or a solution? Assuming what I'm wanting is doable. Thanks in advance 

So basically this section of the unraid forums is the arse end of the world and receives limited responses.

 

In follow up to my above post I have tested symbolic links. Much to my disappointment the speed increases weren't too different. I had tweaked crashplans cpu value up, which resulted in write speeds of about 5MB/s (parity protected write). Using the symbolic link speeds were around 10-12MB/s (cache write).

 

An unexpected result was "the next day" where I added another folder to backup. Overnight unraid mover had moved all the files to the parity protected array. However crashplan creates ~4GB propriety files which meant it was respun and continued to be filled before starting a new file on the cache.

 

Given this information and the fact the files I'm backing up are small documents & occasional batches of photos, for me the majority of new writes would result in respinning the unfilled propriety crashplan file, on the parity protected array, anyway.