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I have an Acer EasyStore with a RAID5 mdraid array I use for storing my home files (photos, movies, etc), and I want to migrate it to ZFS with Ubuntu (the native kernel module from zfsonlinux.org).
I hear that ZFS needs a lot of RAM, but the EasyStore only has 2 GB. The RAIDZ will be three 1.5GB disks, and I'm wondering if ZFS won't work with 2 GB of RAM. What problems, if any, am I likely to see? Performance isn't a concern, as long as it can stream HD movies in real time, which is basically the use case this computer sees.
Yes, my ZFS NAS runs fine with just 2 GB of memory. The performance isn't stellar (which may be more to do with the network, or the CPU), but it can certainly stream HD films.
– sblair – 2012-12-13T00:31:07.030