Re: mount option nodatacow for VMs on SSD?

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On Sat 2016-11-26 (11:27), Kai Krakow wrote:

> > I have vmware and virtualbox VMs on btrfs SSD.

> As a side note: I don't think you can use "nodatacow" just for one
> subvolume while the other subvolumes of the same btrfs are mounted
> different. The wiki is just wrong here.
> 
> The list of possible mount options in the wiki explicitly lists
> "nodatacow" as not working per subvolume - just globally for the whole
> fs.

Thanks for pointing this out!
I have misunderstood this, first.

Ok, then next question :-)

What is better (for a single user workstation): using mount option
"autodefrag" or call "btrfs filesystem defragment -r" (-t ?) via nightly
cronjob?

So far, I use neither.


-- 
Ullrich Horlacher              Server und Virtualisierung
Rechenzentrum TIK         
Universitaet Stuttgart         E-Mail: horlacher@xxxxxxxxxxxxxxxxxxxx
Allmandring 30a                Tel:    ++49-711-68565868
70569 Stuttgart (Germany)      WWW:    http://www.tik.uni-stuttgart.de/
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