by hubeny » Wed May 11, 2016 9:23 pm people like this post
we need to upgrade the version of ZFS on linux in the FLR appliance. The current version in FLR appliance is 0.6.3. The current version in ZFSonLinux in CentOS (RedHat) is 0.6.5. Further the version which is used in CentOS support this two features
the version in FLR appliance does not support this features.
Therefore I want to ask feature request to update the ZFSOnLinux version in FLR appliance from 0.6.3 at least to 0.6.5 with support of
features. This will help us to restore individual files from linux OS with ZFS backup.
by PTide » Wed Oct 05, 2016 10:53 am people like this post
Such "How To" won't be short as the upgrade of ZFS module requires one to perform kernel upgrade of the iso image distro, however I noted it as a feature request. Is it possible for you to use this workaround?
by dellock6 » Wed Oct 05, 2016 6:04 pm people like this post
I'm reading the KB article and seems honestly a bit too complicated. I think this workaround (http://www.virtualtothecore.com/en/rest ... -recovery/) may be quicker, as you end up mounting the restored disk as a slave to the original VM. Another option is to use virtual lab and retrieve the files from the restored vm.
Editing the ISO machine is possible, but totally unsupported and a bit tricky to be done.
by adrian » Mon Oct 10, 2016 8:55 am people like this post
In my Case #01918592 I was asked to post a feature request for this purpose: Please update the ZFS Version to a more recent one ( eg to the newest 0.6.5.8 ) so the FLR could work with current implementations.
by adrian » Tue Oct 11, 2016 8:13 am people like this post
alright, thank you for merging the request. As the original thread here from hubeny is about five month old let me ask you what you mean by "[..] but cannot be implemented immediately [..]". Please make an approximate estimation.
by PTide » Tue Oct 11, 2016 10:45 am people like this post
Kernel upgrade is required in order to incorporate the new ZFS module into the appliance. Since the appliance contains many other modules that are dependent on the kernel version such an upgrade implies a subsequent extensive testing to make sure that all other components work properly, such testing requires lots of human resources.
by PTide » Thu Nov 02, 2017 2:33 pm people like this post
Any ETA on ZFS on Linux update for FLR appliance?
There is still no ETA, however I'm quite interested in how you implement ZFS in your VMs. Do you use ZFS combined with vRDM or you just use simple vmdk? What about ARC and L2ARC? Would you describe your setup please?
by Daniel S » Mon Nov 06, 2017 2:29 am people like this post
I use ZFS purely as a file system on one single normal VMDK. I do not use any of ZFS' RAIDZ or logical volume manager capabilities, because my underlying storage already provides this (incidentally also ZFS-based).
The reason I choose the ZFS file system is its Redirect on Write design which reduces the risk of file system corruption or long fsck at boot. ext4's fsck on 20TB would take way too long!