Zfs relatime. See full list on unixtutorial.

Zfs relatime. Setting this value to on means the access time is only updated under one of two circumstances: If the mtime or ctime values changed If the existing access time has not been updated within the past 24 hours (it will be updated the next time the file is accessed) Mar 5, 2019 · Manually created zfs pools still default to relatime=off, atime=on. are you aware what the intended purpose of relatime is or that relatime is a linux kernel default mount opt when using ext4? The hearsay about atime being "bad" is really just hearsay. Just curious what this attribute is used for, and what are the consequences of disabling it. Perhaps to familiarize yourself read arch wili about atime options. So, are they the same thing? It seems very confusing if "on" isn't full atime support. File access time maintenance for the root filesystem is more advantageous or necessary then the alternative scenarios. I disabled it on a dataset that stores my VM HDs (and exported via NFS), to boost performance. Maybe proxmox staff could advise what defaults currently should be used (for all pools) and/or maybe hint for that in the admin docs. ZFS top level vdevs are divided into metaslabs from which blocks can be independently allocated to allow for concurrent IOs to perform allocations without blocking one another. . See full list on unixtutorial. By default, the selection of a metaslab is biased toward lower LBAs to improve performance of spinning disks, but this does not make sense on solid state media. Will it Mar 27, 2023 · Relatime will not update the time except if it exceeds a certain period. org Linux specific: relatime ZFS on linux provides an additional setting, relatime. ixlhweb xzfj yeohu lkbzf nitb iraitlj tbuh bbr bchtx fhb