On Oct 23, 2020, at 14:03, Kumar, Amit <[email protected]<mailto:[email protected]>> wrote:
Dear All, Quick question, can I get away by setting “zfs set atime=off on_all_my_voulmes_mgt_mdt_and_osts” ? I ask this as it is noted to be performance boosting tip with the assumption filesystems(Lustre) handles all access times? You don't really need atime enabled on the OSTs, but I also don't think "atime=off" will make any difference. That is a VFS/ZPL level option, and Lustre osd-zfs doesn't use any of the ZPL code, but rather handles atime internally. Cheers, Andreas -- Andreas Dilger Principal Lustre Architect Whamcloud
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