[Gluster-devel] BoF - Gluster for VM store use case

[Sahina Bose]

During Gluster Summit, we discussed gluster volumes as storage for VM
images - feedback on the usecase and upcoming features that may benefit
this usecase.

Some of the points discussed

* Need to ensure there are no issues when expanding a gluster volume when
sharding is turned on.
* Throttling feature for self-heal, rebalance process could be useful for
this usecase
* Erasure coded volumes with sharding - seen as a good fit for VM disk
storage
* Performance related
  ** accessing qemu images using gfapi driver does not perform as well as
fuse access. Need to understand why.
  ** Using zfs with cache or lvmcache for xfs filesystem is seen to improve
performance

If you have any further inputs on this topic, please add to thread.

thanks!
sahina
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