On 2020-02-12 11:37, Matt Graham wrote:
> On 2020-02-11 20:36, Nathan (PLUGAZ) wrote:
>> On 2020-02-11 19:43, Matt Graham wrote:
> [putting this back on the PLUG list]
>>> I did "mount /mnt/testrsync -o remount,barrier=0" and immediately
>>> after that, that LV showed up in the output from mount with
>>> "nobarrier" in it.
>> Just for fun, I tried exactly that, mount -o remount,barrier=0
>> /remote and it says
>> mount.nfs4: an incorrect mount option was specified

> 
> "nobarrier" is a valid option for *ext34* filesystems.  You have to
> execute the remount command on the machine that's *serving* this
> filesystem over NFS, not the machine that's *mounting* the filesystem
> over NFS.  Once that's done, file creation over NFS should be a heck
> of a lot faster.


Got it! talk about one of those facepalm moments. I mounted the volume 
on the file server with nobarrier and wouldn't you know it's 
ridiculously fast now.
I'll keep an eye on this and see how it goes.

Thanks for all the help and ideas!
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