I have two ZFS servers which have several TB of space. One of the great ZFS features is the ability to send one filesystem to another filesystem, on the current or another server. I will do this over ssh. One of my servers has a lot of spare space, so I figure I will duplicate my backups there. The source This server contains a Bacula Storage Daemon with access to about 27TB, with […]
zfs send on FreeBSD over ssh using mbuffer Read More »
Today I will be installing ezjail 3.3 on a FreeBSD 9.2 system. I will give an overview of the installation and go straight to the configuration of the first jail. As I type this, I’m looking back at my old notes from 2008. Installation I installed ezjail with this command: pkg install ezjail Configuration Enable ezjail by adding this command to /etc/rc.conf: ezjail_enable=”YES” This system is configured with ZFS and each jail will
Installing ezjail 3.3 on FreeBSD 9.2 using ZFS Read More »
How much space is used by my ZFS snapshots? That’s the question I asked. I found the answer here. Hope that helps.
How much space is used by my ZFS snapshots Read More »
This post has it all: backups deduplication snapshots ZFS Bacula ezjail Backups are essential for proper sanity, or at least, a reasonable facsimile. I strongly believe that doing backups right is the only way to backup. Go big or go home. I’ve been converting all my servers to ZFS. I like ZFS for many reasons, and I’m going to list two: data integrity snapshots In this case, instead of backing up the entire
Script for listing the latest ZFS snapshot – starting place for Bacula backups Read More »
This is zuul, the server I’ve been setting up to be a new jail host. I like to store away this type of documentation, in case I need it later. The partitions: The ZFS file systems: The ada0 drive details: And ada1 drive details: And finally, dmesg:
I have an exciting project ahead of me. I will soon be configuring a new server. It will be ZFSROOT running a pair of mirrored 500GB disks. I plan to use a configuration tool for management of this server. The final choice of tools is yet to be decided. The services provided by this server will be primarily based on jails. The use of a configuration tool will simplify future redeployments. I’m doing
Exciting project ahead Read More »
FreeBSD now has zl4 compression for ZFS. But you must upgrade your pools to get it. If you try before upgrading, you’ll get: # zfs create -o recordsize=8k -o primarycache=metadata -o compress=lz4 system/usr/home/dan/pgsqlsql cannot create ‘system/usr/home/dan/pgsql’: pool must be upgraded to set this property or value So, let’s upgrade: # zpool upgrade -a This system supports ZFS pool feature flags. Successfully upgraded ‘system’ from version 28 to feature flags. Enabled the following features
zpool upgrade to get lz4_compress Read More »
My ZFS system hits a high load average every week during its scrub. Here is what top looks like after I pressed i and then S: last pid: 42049; load averages: 3.78, 3.26, 3.42 up 18+13:47:14 11:43:01 220 processes: 3 running, 216 sleeping, 1 waiting CPU: 7.5% user, 0.0% nice, 12.8% system, 1.2% interrupt, 78.5% idle Mem: 765M Active, 236M Inact, 8667M Wired, 17M Cache, 3284M Buf, 22G Free Swap: 8192M Total, 2404K
ZFS system hits high load during scrub Read More »
For future reference, this is the knew server. It runs a few jails, including Bacula regression testing services. The filesytems:
This post has been replaced by a newer one. For future reference, this is the slocum server, which I use for various jails and services: