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 »
Tonight I got blocked by iocage and handling a ZFS filesystem from within an iocage jail. These are the steps I followed to convert that jail from iocage to a vanilla jail. The variable To make this solution easier to use, at least for me, on future jail migrations, I have these variables: For example,
Converting an iocage jail to a vanilla jail Read More »
Today I tested the shutdown but was mostly concerned by the startup. I wanted the hosts to start in a specific order. I lived tweeted it and that thread is the basis for this post. The UPS has three groups of outlets: primary group, group 1, group 2. Each group has a On Delay setting.
nut – testing shutdown and startup Read More »
Following on from my recent nut setup, this is the second in a series of three posts. The next post will deal with adjusting startup and shutdown times to be sure everything proceeds as required. I want to test the host shutdown mechanism without: unplugging the UPS from the mains powering off the UPS without
nut – testing the shutdown mechanism Read More »
I use Tarsnap for my critical data. Case in point, I use it to backup my Bacula database dump. I use Bacula to backup my hosts. The database in question keeps track of what was backed up, from what host, the file size, checksum, where that backup is now, and many other items. Losing this
Tarsnap – cleaning up old backups Read More »
Today was battery replacement day at my place. The UPS batteries were replaced without downtime. That doesn’t mean there wasn’t downtime. I am not documenting this in real-time. This is post-event analysis. First, I wanted to change the battery replacement date, so I ran acptest on the pfSense server, to which the UPS is connected
Unintended shutdown of the #homelab Read More »
I backup my databases daily. They get dumped to a disk file and copied somewhere else. Then they are backed up into a file system. Once a month they get copied to tape. Yesterday I upgraded a PostgreSQL database server, and it went well. Overnight, a backup failed. This is the story of how that
The backups have been wrong for about 97 days Read More »
This post has been replaced by a newer post. For future reference, this is the knew server … oh wait, I think it’s this server which is was mounted in the 4U chassis mentioned in this post. It runs a few jails, including Bacula regression testing services. It is now mounted in a SuperChassis 846E16-R1200B
This post has been replaced by a new one. For reference, the previous post on this server is still available. FYI, this server is named after Joshua Slocum, who was the first person to sail single-handedly around the world. This server was upgraded on Feb 2 2019. Only the storage persisted. Everything else was upgraded.
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 »