[lustre-discuss] ZFS based OSTs need advice
Zeeshan Ali Shah
javaclinic at gmail.com
Tue Jun 26 08:53:30 PDT 2018
Our OST are based on supermicro SSG-J4000-LUSTRE-OST , it is a kind of
all 360 Disks (90 disks x4 OST) appear in /dev/disk in both OSS1 and OSS2 .
My idea is to create zfspool of Raidz2 (9+2 spare) which means arround 36
zfspools will be created .
Q1) Out of 36 zfs pools shall i create all of 36 Pools in OSS1 ? in this
case those pools can only be imported in OSS1 not in OSS2 how to gain HA
Q2) 2nd option is to create 18 zfspools in OSS1 and 18 in OSS2 ? later in
mkfs.luster specify oss1 as primary and oss2 in secondary (execute it in
oss1) and 2nd time execute same command on oss2 and make oss2 primary and
oss1 secondary .
does it make sense ? am i missing some thing
Thanks a lot
On Tue, Jun 26, 2018 at 5:38 PM, Dzmitryj Jakavuk <dzmitryj at gmail.com>
> You can share 4 osts between pair of oss making 2 osts imported into one
> oss and 2 osts into other oss. At the same time hdds need to be shared
> between all oss. So in normal conditions 1 oss will import 2 ost and the
> second oss will import Other 2 osts.in case of ha single oss can import
> all 4osts
> Kind Regards
> Dzmitryj Jakavuk
> > On Jun 26, 2018, at 16:02, Zeeshan Ali Shah <javaclinic at gmail.com>
> > We have 2 OSS with 4 OST shared . Each OST has 90 Disk so total 360
> Disks .
> > I am in phase of installing 2OSS as active/active but as zfs pools can
> only be imported in single OSS host in this case how to achieve
> active/active HA ?
> > As what i read is that for active/active both HA hosts should have
> access to a same sets of disks/volumes.
> > any advice ?
> > /Zeeshan
> > _______________________________________________
> > lustre-discuss mailing list
> > lustre-discuss at lists.lustre.org
> > http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the lustre-discuss