Wandering Thoughts archives

2019-12-30: A retrospective on our OmniOS ZFS-based NFS fileservers
2019-10-10: Some additional information on ZFS performance as you approach quota limits
2019-09-30: ZFS performance really does degrade as you approach quota limits
2019-08-30: ZFS is not a universal filesystem that is always good for all workloads
2019-08-23: What happens in ZFS when you have 4K sector disks in an ashift=9 vdev
2019-07-26: Some things on the GUID checksum in ZFS pool uberblocks
How 'zpool import' generates its view of a pool's configuration
2019-07-24: ZFS pool imports happen in two stages of pool configuration processing
2019-06-27: Our last OmniOS fileserver is now out of production (and service)
2019-06-26: A hazard of our old version of OmniOS: sometimes powering off doesn't
2019-06-03: Almost all of our OmniOS machines are now out of production
2019-05-31: Some things on how ZFS dnode object IDs are allocated (which is not sequentially)
2019-05-17: One of our costs of using OmniOS was not having 10G networking
2019-04-07: A ZFS resilver can be almost as good as a scrub, but not quite
2019-04-01: Our plan for handling TRIM'ing our ZFS fileserver SSDs
2019-03-26: Drifting away from OmniOS (CE)
2019-03-24: A bit more on ZFS's per-pool performance statistics
2019-02-09: 'Scanned' versus 'issued' numbers for ZFS scrubs (and resilvers)
2019-02-01: A bit of Sun's history that still lingers on in Illumos
2019-01-28: The potential risk to ZFS created by the shift in its userbase
2019-01-05: Some things on ZFS's per-pool performance statistics

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