[lustre-discuss] Tools for backing up a ZFS MDT
Mohr Jr, Richard Frank (Rick Mohr)
rmohr at utk.edu
Fri Mar 29 15:17:51 PDT 2019
This presentation from LUG 2017 might be useful for you:
It shows how ZFS send/receive can be used to migrate data between OSTs. I used it as a reference when I worked with another admin to migrate a MDT to new hardware.
Senior HPC System Administrator
National Institute for Computational Sciences
> On Mar 29, 2019, at 6:03 PM, Hans Henrik Happe <happe at nbi.dk> wrote:
> Hi Kurt,
> Haven't got much experience with the complete send/receive to a remote
> ZFS fs. However, I've created my own scripts for just sending to files.
> Also, I've moved an MDT from ashift=12 to ashift=9 with send/recv. It
> worked without any problems.
> ZFS above 0.7.9 have issues together with dnodesize != legacy for receives:
> I'll look into ZnapZend :-)
> Hans Henrik
> On 25/03/2019 20.37, Kurt Strosahl wrote:
>> Good Afternoon,
>> I've been working on a new lustre file system, now with ZFS on the
>> MDT (my current lustre file system uses ldiskfs). One of the reasons
>> for this was the ability to use ZFS snapshots to backup the MDT, and I'm
>> wondering if anyone has experience with zfs backup tools like ZnapZend?
>> Kurt J. Strosahl
>> System Administrator: Lustre, HPC
>> Scientific Computing Group, Thomas Jefferson National Accelerator Facility
>> lustre-discuss mailing list
>> lustre-discuss at lists.lustre.org
> lustre-discuss mailing list
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