![]() ![]() The warning above just means that a new ZFS storage format is available but is not used by the current pool. Pool will no longer be accessible on older software versions. Still be used, but some features are unavailable.Īction: Upgrade the pool using 'zpool upgrade'. Status: The pool is formatted using an older on-disk format. Tank 256G 360K 256G 0% ONLINE - $ zpool status Btw all the data on the boot partition was preserved. Great, the disk was repartitioned and the existing data partition, which I call boot, was resized into a smaller 40GB partition and the extra space was used to create a ZFS pool called tank. $ sudo diskutil resizeVolume disk0s2 40G ZFS tank 257Gįormatting disk0s3 as ZFS File System with name tank Let's repartition the disk so that it contains two data partitions. If you are using an external hard drive, you'll most likely need to use zpool command instead.įirst let's check what the disk looks like:Ģ: Apple_HFS boot 297.8 Gi disk0s2Good, the internal disk was identified as /dev/disk0 and it currently contains an EFI (boot) slice and ~300G data slice/partition. Repartition DiskOnce ZFS is installed and the OS was rebooted, I could repartition the internal disk. Alternatively, AlBlue created a fancy installer for the lazy ones out there. The installation is very simple and can be done by following these instructions. In order to be able to really use ZFS, full ZFS implementation must be installed. Install ZFSEven though MacOS X 10.5 comes with ZFS support, it's only a read-only support. My plan was simple - repartition the internal hard drive to a small bootable partition and a large partition used by ZFS, which will hold my home directory and other filesystems. None of the above was a show stopper for me, so I went ahead with the installation. ![]() ![]() There are a bunch of minor issues, which I'm sure will eventually go away.There are several reports of kernel panics, most of which appeared in connection to the use of cheap external USB disks (I haven't experienced any).Finder integration is not perfect yet - Finder lists a ZFS pool as an unmountable drive under devices.It's currently not possible to boot Mac OS X from a ZFS filesystem.The current ZFS port (build 119) is based on ZFS code that shipped with Solaris build 72.There is a Mac ZFS porting project at and I found a lot of good info at AlBlue's blog. If you've never heard of ZFS before, check out this good 5min screencast of some of the important features.Ī brief google search revealed that there are several people using and developing ZFS for Mac. Getting rid of HFS+, which was causing me lots of problems (especially its case insensitive re-incarnation), sounds like a dream come true. For a long long time I wanted to try to use ZFS file system on Mac and this looked like a wonderful opportunity. While waiting for it to be delivered, I started thinking about how I want to layout the installation of the OS. ![]()
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