31 January, 2017

Tuning of ZFS module

Tuning of ZFS module The more difficult part of ZOL is the fact that there are plenty of tune able kernel module parameters, and hence ZFS can be used in many kinds of systems for many different reasons. (laptops, file-servers, database-servers, file-clusters) However some of the parameters come bad out of the box for file […]

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zfs on linux

26 January, 2017

Basic ZFS tune tips

Lets start out with saying that ZFS on Linux (ZoL) is pretty awesome, snapshots, compression-on-the-fly, quota’s, … I love it. However ZoL also has issue’s, I even blogged about some in the past. (a full ZFS pool, failing to load ZFS module) Most cases where my own fault, but still, its very uncommon for a file system […]

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zfs on linux

22 January, 2017

Snapshots in ZFS (ZOL)

One of the impressive tools in ZOL (ZFS On Linux) is snapshots. Snapshots are a way to make a ‘instant backup’ of the files on the system. The name backup, is not completely correct. If the system dies, the snapshots won’t save you, since snapshots are on the same storage as the data, they don’t eat […]

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zfs on linux

12 January, 2017

zdb cannot open ‘/etc/zfs/zpool.cache’: No such file or directory

Uh-oh, trying out zdb and finding this error, doesn’t breath confidence does it ? Here is how you can solve this minor issue : # zdb cannot open ‘/etc/zfs/zpool.cache’: No such file or directory Just set it as a value to the zpool : zpool set cachefile=/etc/zfs/zpool.cache poolname getting the pool name can be done using […]

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19 April, 2016

zfs compression : use it!

zfs on linux
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