Hi All,
I find myself in the position of having to change the k/m values on an
ec-pool. I've discovered that I simply can't change the ec-profile, but
have to create a "new ec-profile" and a "new ec-pool" using the new
values, then migrate the "old ec-pool" to the new (see:
https://ceph.io/en/news/blog/2015/ceph-pool-migration/ => Using Rados
Export/Import).
(Yes, a PITA, but it has to be done, and better doing it now when the
data-size isn't that big - yet!)
My only concern is that the "old ec-pool" is a `--data-pool` and part of
an rbd image (ie the image was created with `rbd create --size 2T
ec_rbd_pool/disk01 --data-pool ec_pool --image-feature journaling`).
So my Q is: What are the "gotchas" (if any) with this, or is it simpler
to backup the data (already done), destroy and recreate the rbd image
from scratch, and restore the data to the re-created pool(s)/image?
FTR: space isn't an issue (I've got plenty to play with) but I'm looking
for the quickest way to do this as its a live (but little used) system,
so I can take it down for a few hours (or more), but don't particular
*want* to have it off-line for longer than absolutely necessary.
Thanks in advance for any advice/help/warnings/etc :-)
Cheers
Dulux-Oz
_______________________________________________
ceph-users mailing list -- ceph-users@xxxxxxx
To unsubscribe send an email to ceph-users-leave@xxxxxxx
