snapshots

Bacula – calculating Maximum Volume Bytes and Maximum Volumes based on historical data

I’ve used Bacula since at least January 2004 (so nearly 20 years). I liked it so much I dropped my deployment-in-motion of another tool (if you search lightly, you can find out which one). I liked it so much, I wrote a PostgreSQL backend for it. This post is not for Bacula novices. This post …

Bacula – calculating Maximum Volume Bytes and Maximum Volumes based on historical data Read More »

Moving ZFS filesystems/datasets from one ZFS zpool to another

Now that I’ve filled up data01, I bought some more SSDs and created another zpool. Today, on this snow-is-anticipated Saturday winter morning, I’m going to move some ZFS filesystems/datasets around. Side note: I like the term dataset better than filesystem. man zfs talks about datasets, which can be a file system, a volume, a snapshot, …

Moving ZFS filesystems/datasets from one ZFS zpool to another Read More »

Wrong recordsize on zfs send | zfs recv filesystems

Over the past few days, I’ve posted a lot about transferring jails from two hosts into one host. One of the steps involves using zfs send | zfs recv to send the files from one host to another. I’m using syncoide for that transfer. A new fileystem’s recordsize defaults to 128K. In my case, that …

Wrong recordsize on zfs send | zfs recv filesystems Read More »

using syncoid to backup ZFS snapshots – home assistant

Copies of data are good. Especially if on a different host. zfs snapshots combined with zfs send | zfs recv make replication of zfs file systems especially easy. I am already using sanoid to manage zfs snapshots. Now I’m going to use syncoid to transfer those snapshots to another host. Both sanoid and syncoid are …

using syncoid to backup ZFS snapshots – home assistant Read More »

Moving some ZFS filesystems to the ‘trash’ and removing all their snapshots – sanoid

I recently discovered that you can delete all snapshot from a ZFS filesystem with a single command. It came to me via fortune: You can delete a range of ZFS snapshots (a-z) in multiple ways. The following will delete d and all earlier snapshots: zfs destroy mypool/data@%d To delete d and all later snapshots: zfs …

Moving some ZFS filesystems to the ‘trash’ and removing all their snapshots – sanoid Read More »

Changing from one dataset to another within a FreeBSD [iocage] jail

ZFS has a the ability to share itself within a jail. That gives the jail some autonomy, and I like that. I’ve written briefly about that, specifically for iocage. More recently, I started using a zfs snapshot for caching clearing. The purpose of this post is to document the existing configuration of the production FreshPorts …

Changing from one dataset to another within a FreeBSD [iocage] jail Read More »

bectl details

This is just a placeholder for me to find this later. I was cleaning up some old snapshots. I’m not sure I should have removed those snapshots and I’m saving this here for next time I use bectl. [dan@slocum:~] $ grep -v autosnap ~/tmp/snapshots/snapshots zroot/bootenv/default@2020-01-11-18:16:51 zroot/bootenv/default/tmp@2020-01-11-18:16:51 zroot/bootenv/default/usr@2020-01-11-18:16:51 zroot/bootenv/default/usr/local@2020-01-11-18:16:51 zroot/bootenv/default/usr/obj@2020-01-11-18:16:51 zroot/bootenv/default/usr/src@2020-01-11-18:16:51 zroot/bootenv/default/var@2020-01-11-18:16:51 zroot/bootenv/default/var/audit@2020-01-11-18:16:51 zroot/bootenv/default/var/empty@2020-01-11-18:16:51 zroot/bootenv/default/var/log@2020-01-11-18:16:51 zroot/bootenv/default/var/tmp@2020-01-11-18:16:51 …

bectl details Read More »

zfstools & sanoid – snapshots on the local host

I’m going to implement zfstools on all my ZFS-based hosts today. I first started using this tool in July 2019. In this post: FreeBSD 12.0 and 12.1 zfstools 0.3.6_1 sanoid-2.0.1_2 Local snapshots only I will be using zfstool only for creating local snapshots. If I wanted snapshots for sending to other hosts, I would probably …

zfstools & sanoid – snapshots on the local host Read More »

Scroll to Top