25 March, 2020

Sharenfs on ZFS and mounting with autofs

ZFS has this less documented feature, called share[nfs|smb]; I tried it once, it “did not work on first attempt”™ So I ignored it; However now we faced an issue where we normally exported ZFS volumes using /etc/exports (NFS); and mounted using /etc/fstab; but got an empty directory where there was a “sub” zpool volume; This […]

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zfs on linux

20 March, 2019

Create ZFS Raidz2 pool

This is a quick howto, I made a raidz2 pool on ZFS, its very similar to how to create a mirror. find out what disks you are giving to the pool : [email protected]:~# fdisk -l /dev/sd* | grep Disk Disk /dev/sda: 9.1 TiB, 10000831348736 bytes, 19532873728 sectors Disk /dev/sdb: 9.1 TiB, 10000831348736 bytes, 19532873728 sectors […]

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06 February, 2019

Understanding ZFS : Checksum

Ever wondered what kind of checksum ZFS uses to check for bit rot ? Probably not, but it turns out you can change the used algorithm. However like most settings, the defaults are chosen by smart people. So changing it might not be doing you any favors. As it turns out, the default checksum used […]

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zfs on linux

01 June, 2018

ZFS : Unknown parameter `zil_slog_limit’

This is the tale of caution, when sleep deprived, sysadmin with caution! Let’s be honest who never said : lets finish this game, let’s have another drink, I will sleep when dead, … (enter sleepless night excuse here) ? Last night for me I was on a coding spree, when a thunderstorm broke, I was […]

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19 April, 2017

ZFS quota

zfs on linux

28 March, 2017

ZFS replace a broken disk

zfs on linux

08 March, 2017

Create a ZFS mirror pool

zfs on linux

17 February, 2017

Install ZFS on Centos

zfs on linux

31 January, 2017

Tuning of ZFS module

zfs on linux
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