Nobody on this topic?
I'm pretty sure they are lots of people running Lustre on ZFS with various
tuning applied. Don't be shy
De : "Degremont, Aurelien"
Date : mercredi 10 juillet 2019 à 10:35
À : "lustre-discuss@lists.lustre.org"
Objet : ZFS tunings
Hi all,
I know good default tunings for ZFS when used with Lustre is a big topic. There
are several pages on wiki or LUG/LAD slides which are few years old and it is
difficult to know which ones are still relevant when used with recent Lustre
and ZFS versions.
Does anybody have insight about which tunings are important. Especially for:
* zfs atime (does DMU when used by Lustre also updates atime ?)
* redundant_metadata=most
* metaslab_debug_unload=1
* zfs_prefetch_disable=1
* zfs_vdev_scheduler=deadline
Lustre already sets ‘xattr=sa’, ‘dnodesize=auto’ and ‘recordsize=1M’
automatically since Lustre 2.11.
Thanks
Aurélien
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