Thanks, Sage! That did the trick.
Wido, seems like an interesting approach but I wasn't brave enough to
attempt it!
Eric, I suppose this does the same thing that the crushtool reclassify
feature does?
Thank you both for your suggestions.
For posterity:
- I grabbed some 14.0.1 packages,
Hi David,
CERN has provided with a python script to swap the correct bucket IDs
(default <-> hdd), you can find it here :
https://github.com/cernceph/ceph-scripts/blob/master/tools/device-class-id-swap.py
The principle is the following :
- extract the CRUSH map
- run the script on it => it
On Sun, 30 Dec 2018, David C wrote:
> Hi All
>
> I'm trying to set the existing pools in a Luminous cluster to use the hdd
> device-class but without moving data around. If I just create a new rule
> using the hdd class and set my pools to use that new rule it will cause a
> huge amount of data
Hi All
I'm trying to set the existing pools in a Luminous cluster to use the hdd
device-class but without moving data around. If I just create a new rule
using the hdd class and set my pools to use that new rule it will cause a
huge amount of data movement even though the pgs are all already on
