Should File Deletion be Really Slow

[ptmurphy]

I am deleting roughly 100 files of of an unRAID share, from a Windows 10 mapped drive. They are between 5 and 10 GB each. It is estimated to take 20 minutes? Is this normal? I presume it is slow because the parity has to be updated?

[Squid]

Shouldn't be that slow.  Post up your diagnostics.  But Windows is really bad at estimating, and at the beginning, unRaid may have to spin up drives to delete the file(s), so windows includes that time in its estimation.  After everything gets rolling, it should be more or less as fast as local.

[ptmurphy]

Here is the log file - I looked through it, but honestly not sure what I am looking for. I am running version 5.0.5. I am planning to upgrade to 6.3 sometime soon.

 

It really was as slow as it predicted. Took about 20 minutes to delete 100-120 files - all between 5 and 10 GB each.

 

Thanks for the help...

unraid_log.txt

[RobJ]

That sounds about right.  That's 5 a minute, about 12 seconds each, for 5 to 10GB files.  The bigger the file the longer it takes.  Deleting large files in ReiserFS is MUCH slower than deletions in FAT or NTFS, which is what most of us are used to, and spoiled by.

 

After converting to unRAID v6, and if you convert drives to XFS, deletions will somewhat faster.

[SSD]

I'd say more than somewhat faster. XFS is quite fast. RFS is dog slow. I recently deleted a directory of files, 20 or so. Each file between 6G and 8G. Took maybe 20 seconds.

[ptmurphy]

3 hours ago, bjp999 said:

I'd say more than somewhat faster. XFS is quite fast. RFS is dog slow. I recently deleted a directory of files, 20 or so. Each file between 6G and 8G. Took maybe 20 seconds.

 

So are you using XFS to get those speeds?

[SSD]

Yes

 

Take a look here for other reasons to convert.