Hi Dev,
You can't. There's no 'ceph osd erasure-code-profile modify' command and the 'ceph osd erasure-code-profile set' will fail on output below when run on an existing profile. See below:
$ ceph osd erasure-code-profile ls
default
myprofile
$ ceph osd erasure-code-profile get myprofile
crush-device-class=
crush-failure-domain=host
crush-num-failure-domains=0
crush-osds-per-failure-domain=0
crush-root=default
jerasure-per-chunk-alignment=false
k=2
m=1
plugin=jerasure
technique=reed_sol_van
w=8
$ ceph osd erasure-code-profile set myprofile crush-failure-domain=osd k=2 m=1
Error EPERM: will not override erasure code profile myprofile because the existing profile {crush-device-class=,crush-failure-domain=host,crush-num-failure-domains=0,crush-osds-per-failure-domain=0,crush-root=default,jerasure-per-chunk-alignment=false,k=2,m=1,plugin=jerasure,technique=reed_sol_van,w=8} is different from the proposed profile {crush-device-class=,crush-failure-domain=osd,crush-num-failure-domains=0,crush-osds-per-failure-domain=0,crush-root=default,jerasure-per-chunk-alignment=false,k=2,m=1,plugin=jerasure,technique=reed_sol_van,w=8}
You need to create a new profile or delete the current profile and recreate it with the same name.
Regards,
Frédéric.
----- Le 5 Fév 25, à 0:14, Devender Singh devender@xxxxxxxxxx a écrit :
> Hello all
>
> Is there a way to change ec pool profile from host to osd?
>
> Regrds
> Dev
>
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