How do you achieve that? 2 hours?
That's a long story. Short one is, by taking a wrong path for trouble shooting. I
should have stayed with my check-list instead. This is the whole point of the redundancy
remark I made, that 1 admin mistake doesn't hurt and you are less likely to panic if
For a too long time on this day, I thought I had lost the whole cluster.
AIT Risø Campus
Bygning 109, rum S14
From: Konstantin Shalygin <k0ste(a)k0ste.ru>
Sent: 06 February 2021 12:04:12
To: Frank Schilder
Cc: Alexander E. Patrakov; Mario Giammarco; ceph-users
Subject: Re: [ceph-users] Re: Worst thing that can happen if I have size= 2
How do you achieve that? 2 hours? Install new drive for db is 10min of DC engineer hand
work (if drive is HHHL and need power off server). Then after server is boots your mon
already up. After you provision new drive, make fstab, is stop, rm old monstore, mount
new, mon mkfs, start. Even if this is not covered by script is max 5 minutes to reach
Sent from my iPhone
On 5 Feb 2021, at 12:03, Frank Schilder
I learned this the hard way when upgrading our MON data disks. We have 3 MONs and I
needed to migrate each MON store to new storage. Of course I managed to install the new
disks in one and wipe the MON store on another MON. 2 hours downtime.