Dne 15.5.2017 v 15:25 Oliver Rath napsal(a):
Hi list,
caching the _tdata part of a thinpool works fine now. Unfortunatly with
lvchange it is not possible to change the policy (vg:dmivg,
cachepool:dmipool,thinpool:winthinpool):
# lvchange --cachepolicy cleaner dmivg/dmicache
Operation not permitted on hidden LV dmivg/dmicache.
# lvchange --cachepolicy cleaner /dev/mapper/dmivg-winthinpool_tdata
Operation not permitted on hidden LV dmivg/winthinpool_tdata.
# lvchange --cachepolicy cleaner dmivg/winthinpool
Command on LV dmivg/winthinpool does not accept LV type thinpool.
Required LV types are cache cachepool .
Command not permitted on LV dmivg/winthinpool.
The only possibility at the moment seems to change it via lowlewel
dmsetup command.
# dmsetup status dmivg-winthinpool_tdata
0 7730954240 cache 8 1458/9216 128 720896/720896 4608761 7143953 1177059
5866353 40700 761596 2993 2 metadata2 writeback 2 migration_threshold
2048 smq 0 rw -
...
How can this be done with lv*?
Hi
By opening BZ at http://bugzilla.redhat.com/ for lvm2 ;)
Seem this has got lost in various code changes.
Should be easy to add this to supported variant.
Regards
Zdenek
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