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FS#1764 — FS#5744 — update leclerc

Attached to Project— Dedicated Cloud
Maintenance
Backend / Core
CLOSED
100%
We will update all the storage heads leclerc of PCC infrastructure.

First the master heads then slave heads.
We will use the switch mechanism to avoid cuts.

The steps we will follow for each set leclerc:

- Extensive slave testing to ensure the switching
- Switching from master to slave
- Update the master
- Switching the slave to the master
- Update the slave

175 heads are concenred by this update.

Here we go!


Date:  Monday, 31 October 2011, 19:06PM
Reason for closing:  Done
Comment by OVH - Wednesday, 14 September 2011, 17:14PM

There remains a dozen servers to be update.
The maintenance should be completed on Thursday, 15/09 during the morning.


Comment by OVH - Monday, 31 October 2011, 19:06PM

We don't have enough hindsight for the update to upgrade the whole pools to a more recent version of ZFS.
The update is in progress and takes 2 to 3 seconds for every pool.
No impact is expected.