FreeBSD

Moving from zroot from one zpool to another

Leave a Comment / beadm, Disks, FreeBSD, hardware / By /

Please also see Moving boot from one zpool to another and Adding a zroot pool to an existing system. On my 20x HDD system at home (also known as knew), I am having a recurring problem with booting. This is also the same system mentioned in my FreeBSD Forums thread about some CAM errors. Side note: I now think those CAM errors may be temperature related.  EDIT: 2018-12-29: They were not temperature related. […]

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Bacula – ran out of space, moved some volumes to another zpool

Leave a Comment / Backups, Bacula, FreeBSD, ZFS / By /

I’m using Bacula 9.0.3 for this post, on FreeBSD 10.3 and 11.1. I did not document this as I went along, however, the details should be enough to get you started. NOTE: when I refer to the bacula-sd configuration, I mean the bacula-sd in question, not necessarily on the same server as bacula-dir. This will hopefully make you think carefully about which file you are modifying. NOTE: I am moving a whole Bacula

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FreeBSD – what processes in what jails are using swap?

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Sometimes stuff gets swapped out. When it does, it’s good to know what is swapped. I was getting this Nagios alert this morning. I started searching. I found this post about showing what is using swap via: [dan@knew:~] $ ps ax | awk ‘NR==1{print};$3 ~ /W/’ PID TT STAT TIME COMMAND 12 – WL 54:27.37 [intr] 10147 – IWsJ 0:00.00 /bin/sh /usr/local/bin/mysqld_safe –defaults-extra-file=/usr/local/etc/mysql/my.cnf –based 12791 – IWsJ 0:00.00 /bin/sh /usr/local/bin/mysqld_safe –defaults-extra-file=/var/db/mysql/my.cnf –user=mysql –

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Booting off the new 5TB drives

Leave a Comment / Disks, File Systems, FreeBSD, hardware, Open Source, ZFS / By /

This is about FreeBSD 11.1 on my knew server. I recently replaced the 3TB drives with 5TB drives. Along the way, it didn’t boot, the swap was adjusted, I got concerned about power, and there was a brief CAM status: SCSI Status Error scare. Then today, the planned reboot, I started asking questions on Reddit and on Twitter. The booting issue BIOS cannot boot from drives which present only 4096-byte sectors. This is

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After replacing 3TB drive with 5TB drive, FreeBSD 10.3 system did not reboot

1 Comment / Disks, FreeBSD, hardware, HBA, Open Source, ZFS / By /

I started replacing 3TB drives with 5TB drives in a 10 drive raidz3 array on a FreeBSD 10.3 box. I was not sure which drive tray to pull, so I powered off the server, and, one by one, pulled the drive tray, photographed it, and reinserted the drive tray. No changes were made. The first reboot Upon powering up, I was greeted by this (I have typed out the text for search purposes):

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Logging, backups, and newsyslog.conf on FreeBSD

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This morning, I was reviewing the logs and noticed these notices in /var/log/messages: I guessed that this was directly related to the zfs replace command I had issued the day before, but I wanted to confirm that. I like to use sudo instead of becoming root. One of the many benefits to this approach is logging. Everything is logged to /var/log/auth.log for later review. However, by the time I went to look, /var/log/auth.log

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Swapping 5TB in, 3TB out

1 Comment / Disks, File Systems, FreeBSD, hardware, ZFS / By /

In this power, the server is running FreeBSD 10.3. I am completely and unreasonably biased: ZFS is the best filesystem out there. Do not take my word for it. Ask around. Today, I started a process I’ve been waiting to do for a while. I am replacing the 3TB drives in a 10-drive raidz2 array with 5TB drives. These new drives are faster, I think perhaps cooler, and, more to the point, bigger.

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Creating a gmirror swap

Leave a Comment / FreeBSD, gmirror / By /

This is mostly a note to myself. #### Edit: 2018.09.08 : If you see messages like this: $ sudo gmirror insert swap /dev/da5p2 gmirror: Class not found $ gmirror list -a gmirror: Command ‘list’ not available. You probably need to do this: sudo kldload geom_mirror #### I had these drives: They are involved in this zpool: I decided to create a 6-way mirror for swap: sudo gmirror label -v -b round-robin swap diskid/DISK-653DK7WBFS9Ap2

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Using device.hints to wire physical devices to specific names

Leave a Comment / FreeBSD, Open Source, tape library / By /

I have a system with three tape drives and two tape changers. If one tape library is powered off when the system boots, the device names for the other tape library may be skewed. That is, /dev/sa0 may not be the LTO-4 drive, it will be the SDLT drive. This is not ideal. FreeBSD uses device.hints for this. I have used it before, and for quite some time, however, I learned something new

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