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 […]
Read More20 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 […]
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 […]
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 […]
19 April, 2017
ZFS quota
28 March, 2017
ZFS replace a broken disk
08 March, 2017
Create a ZFS mirror pool
17 February, 2017
Install ZFS on Centos
01 February, 2017
dehydrated using cloudflare hook
31 January, 2017
Tuning of ZFS module