12 July, 2021
Upgrade log ZFS 0.8.6 -> 2.0.5 (Centos 8.4)
I start with rebooting the machine to be sure we got the latest kernel & updates active : yum update reboot Remove the zfs-release, as this generates some warning on my system. yum remove zfs-release The error : error: can’t create transaction lock on /var/lib/rpm/.rpm.lock (Resource temporarily unavailable) error: /etc/pki/rpm-gpg/RPM-GPG-KEY-zfsonlinux: key 1 import failed. warning: […]
Read More09 February, 2021
Setting up zpool scrub every 2 months
So scrubbing ZFS: Giving ZFS a moment to sit down and think about its behavior. It should happen now and again, but if everything is going smooth sailing we tend to forget to do this; With the ever increasing amount of ZFS servers around, it tends to be a hassle, so this is a perfect […]
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 […]
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 […]
06 February, 2019
Understanding ZFS : Checksum
01 June, 2018
ZFS : Unknown parameter `zil_slog_limit’
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