Hi,

That’s great. I’ll push the user option setting ASAP.

About the quotas, you mean Windows quotas or Ceph quotas?

Regars,

Lucian

From: Jake Grimmett
Sent: Thursday, February 25, 2021 11:37 AM
To: Lucian Petrut; dev@ceph.io
Subject: Re: Windows port

Hi Lucian,

So I've now copied 32TB of data from a Windows server to our test ceph
cluster, without any crashes.

Average speed over one 16TB copy was 468MB/s, i.e. just under 11 hours
to transfer 16TB, with a data set that has 1,144,495 files.

The transfer was from Windows 10 server (hardware RAID) > Windows 10 VM
(with the cephfs driver installed) > cephfs test cluster.

If you can get the user option working, I'll put the driver on a
physical Windows 10 system, and see how fast a direct transfer is.

One other thing that would be useful, is over-quota error handling.
If I try writing and exceed the quota, the mount just hangs.

If I increase the quota, the mount recovers, but it would be nice if we
had a quota error in Windows.

Test cluster consists of 6 Dell C2100 nodes, bought in 2012.
Each has 10 x 900GB 10k HDD, we use EC 4+2 for the cephfs pool, metadata
is on 3 x NVMe. Dual Xeon X5650, 12 threads, 96GB RAM, 2x10GB bond.
Ceph 15.2.8, Scientific Linux 7.9.

best regards,

Jake

On 2/23/21 11:49 AM, Lucian Petrut wrote:
> Hi,
>
> That’s great, thanks for the confirmation.
>
> I hope I’ll get to push a larger change by the end of the week, covering
> the user option as well as a few other fixes.
>
> Regards,
>
> Lucian
>
> *From: *Jake Grimmett <mailto:jog@mrc-lmb.cam.ac.uk>
> *Sent: *Tuesday, February 23, 2021 11:48 AM
> *To: *dev@ceph.io <mailto:dev@ceph.io>; Lucian Petrut
> <mailto:lpetrut@cloudbasesolutions.com>
> *Subject: *Re: Windows port
>
> Hi Lucian,
>
> Good news - your fix works; I was able to write 7TB from a Windows 10 VM
> to cephfs last night.
>
> I'll carry on testing the Windows client with large workloads using
> robocopy.
>
> thanks again for working on this, a cephx "user" option should provide
> the core requirements we need for a usable system :)
>
> best regards,
>
> Jake
>
>


Note: I am working from home until further notice.
For help, contact unixadmin@mrc-lmb.cam.ac.uk
--
Dr Jake Grimmett
Head Of Scientific Computing
MRC Laboratory of Molecular Biology
Francis Crick Avenue,
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