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I tried using Gluster a couple years ago, but gave up and went with pairs of systems with DRBD and OCFS2 (which I'm incredibly happy with), on Ubuntu. My backi
by rdl 13y ago
I tried using Gluster a couple years ago, but gave up and went with pairs of systems with DRBD and OCFS2 (which I'm incredibly happy with), on Ubuntu. My backing store is RAID6, so it's probably overkill -- I'm going to switch to RAID1 on pairs 4-6TB drives in the next hardware rev, on Atom 2758 or low-end xeon systems, with 32GB RAM.
The main failure I was getting involved VMs. I know I could do something with openstack, but this is mainly a platform to experiment, so I wanted to be able to support any kind of VM.
- IgorPartola 13y agoTake a look at ZFS as an alternative to RAID. After doing research on this I am convinced that any data worth anything should be on an fS that does checksumming and intelligent data repair.
- rdl 13y agoYeah, ZFS is in my future; it hasn't been supported enough on my OSes until recently. (I'd consider moving to FreeBSD instead of Linux, if needed, too.) The iXSystems guys are doing really interesting stuff, too.
- Nux 13y agoWith DRBD you are stuck with 2 nodes and OCFS2 has given me nothing but head aches, at least in trying to getting it to work in CentOS 6. Apparently Oracle is "forcing" people to use their RHEL clone or at least their kernel to get OFCS2. When I had to use DRBD I went with CLVM. Having said that, starting with v3.4.0 gfapi can be used if your Qemu supports it (it's the case with CentOS 6.4+ or Ubuntu 14.04), therefore bypassing the FUSE layer. This should give you an improved performance.
- wazoox 13y agoOCFS2 is extremely easy to set up and use with Debian (basically just apt-get install ocfs2-console, launch it and let it guide you). On the other hand, RedHat (and I suppose its clones) makes it easier to use GFS2, while GFS2 is incredibly complex to set up on Debian.