On 20/01/20 2:13 pm, Roman wrote:
Hello dear devs team!
I'm sorry to write to you, not user-s list, but I really would like to
have DEV's opinion on my issue.
I've got multiple solutions running on old gluster versions (same
version per cluster, no mixed versions in same cluster):
Some of them are: 3.7.19, 3.10.9, 3.8.15
Yeah, I'm the geek who likes gluster from its beginning. I've started
with glusterfs for KVM (proxmox) and now am running glusterfs for
Tallinn University Academic Library digitalization project (NAS) which
runs fully at 1gbps without any problems. One of gluster is running
250 TB storage and it has to be extended, it is the DISTRIBUTED VOLUME
:). I could go the easy way and get 3.8.15 from old releases of
gluster repo, but i don't feel it to be the right way. What I would
really like to do is:
1. upgrade OS atm it is Debian GNU/Linux 8.10
2. upgrade the glusterfs
So my question is: what is the safe gluster version I could upgrade to
from my versions? I will do the offline upgrade. And what my steps
would be right? As I can see it:
1. shutdown gluster on all servers
2. upgrade os and gluster (change repo file for both os and glusterfs
version supported on that os and safe to upgrade to, run apt-get dist
upgrade)
As you understand, there is no possibility to backup that ammount of
data (the time it would take is not acceptable). We have some data
copied periodically to national archive, but not all of it.
What do you think on this?
As long as you are upgrading, it is better to use the latest version
(7.x). While nothing should go wrong, since 3.x is really old, I'm not
100% sure if everything will be smooth post the upgrade. The best way is
to create a small 'test' setup (maybe a 1 brick volume with 1 client and
some data) and try upgrading it to 7.x , bump up to the right op-version
etc. and verify that every thing works. If it does, then you can do the
actual offline upgrade in peace.
Hope this helps,
Ravi
--
Best regards,
Roman.
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