Hi, I've been looking in the docs and the source code of BlueStore to figure out if it issues TRIM/Discard [0] on SSDs and I haven't been able to find an answer. Does BlueStore/BlueFS issue these commands to give back the space to the underlying device? For SSDs it improves both write performance and their lifespan, so it would be a very nice to have feature. SATA 3.1 has "Queued TRIM Command" which allows it to be 'async' in the controller. Does anybody know? Thanks! Wido [0]: https://en.wikipedia.org/wiki/Trim_(computing) _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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