![]() ![]() So how much RAM do you need, you can use the zdb command to check. Storage/projects/Project1 compressratio 7. raidz/raidz1 - minimum of 3 devices (one parity disk), you can suffer a one disk loss. Storage/projects/Project1 compression lz4 inherited from storage This ZFS filesystem uses the default LZ4 compression, and as can be seen below, the compression ratio on that filesystem is quite good: ▶ sudo zfs get compression,compressratio storage/projects/Project1 gen file is 12TB in size, but the actually used total disk space (see the first line) is 640GB!Īn alternative way to check this is using the du command to show disk space usage: ▶ du -bh rw-r- 1 user1 group1 1.1K May 15 12:53 fcgene_out_fcgene.log We will see how to monitor the ZFS pool’s health in Zabbix and trigger alarms in case we have some issues with our ZFS pools. For demonstration purposes I’ve setup a test virtual machine running FreeBSD 9.0 with a ZFS pool of two disks in a mirror. rw-r- 1 user1 group1 12T May 15 00:27 chr10impv1.gen In this post we’ll see how we can setup Zabbix in order to monitor our ZFS pools. I just noticed the most extreme example I have seen to date: ▶ ls -lh Well… unless they check the output of the ls command carefully, of course. It is completely transparent: the user doesn’t notice anything. Enabling compression on a ZFS filesystem allows you to save a significant amount of space, especially in a field like ours where one sometimes needs to use large plain text files. One of the great things of ZFS is its built-in compression capability. Computing, Linux, Server, ZFS Posted on by Lennart Karssen ![]()
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