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ZnapZend 0.14.1

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ZnapZend is a ZFS centric backup tool. It relies on snapshot, send and receive todo its work. It has the built-in ability to to manage both local snapshots as well as remote copies by thining them out as time progresses.

The ZnapZend configuration is stored as properties in the ZFS filesystem itself.

Zetup Inztructionz

Follow these zimple inztructionz below to get a custom made copy of znapzend. Yes you need a compiler and stuff for this to work.

wget https://github.com/oetiker/znapzend/releases/download/v0.14.1/znapzend-0.14.1.tar.gz
tar zxvf znapzend-0.14.1.tar.gz
cd znapzend-0.14.1
./configure --prefix=/opt/znapzend-0.14.1

If configure finds anything noteworthy, it will tell you about it. If any perl modules are found to be missing, they get installed locally into the znapzend installation. Your perl installation will not get modified!

make
make install

Configuration

Use the znapzendzetup program to define your backup settings. For remote backup, znapzend uses ssh. Make sure to configure password free login for ssh to the backup target host.

Running

The znapzend demon is responsible for doing the actual backups.

To see if your configuration is any good, run znapzend in noaction mode first.

/opt/znapzend-0.14.1/bin/znapzend --noaction --debug

If you don't want to wait for the scheduler to actually schedule work, you can also force immediate action by calling

/opt/znapzend-0.14.1/bin/znapzend --noaction --debug --runonce=<src_dataset>

then when you are happy with what you got, start it in daemon mode.

/opt/znapzend-0.14.1/bin/znapzend --daemonize

Best is to integrate znapzend into your system startup sequence, but you can also run it by hand.

For solaris/illumos OSes you can import make configure install a znapzend service manifest by calling configure with the option --enable-svcinstall=/var/svc/manifest/site. Since the manifest contains the absolute path the the znapzend install directory, it is not contained in the prebuilt version. But you can get a copy from github and roll your own.

svccfg validate /var/svc/manifest/site/znapzend.xml
svccfg import /var/svc/manifest/site/znapzend.xml

and then enable the service

svcadm enable oep/znapzend

Statistics

If you want to know how much space your backups are using, try the znapzendztatz utility.

Support and Contributions

If you find a problem with znapzend, please open an Issue on GitHub.

If you like to get in touch, you can find Dominik and Tobi on the IRC-Channel #znapzend on irc.freenode.net

And if you have a contribution, please send a pull request.

Enjoy!

Dominik Hassler & Tobi Oetiker 2015-10-12