OCFS with DRBD could work very nice in linux i didn't tested mdadm with ndb in a production enviroment DRBD have brainsplit solutions, since you will run a complex filesystem, i consider using working solutions, DRBD and OCFS is nice yes, mdadm can run under DRBD DRBD = raid1 over network OCFS = oracle filesystem (cluster filesystem) it works 2011/3/30 Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx>: > Roman Mamedov put forth on 3/30/2011 3:49 AM: >> On Wed, 30 Mar 2011 11:20:41 +0400 >> CoolCold <coolthecold@xxxxxxxxx> wrote: >> >>> Looking on your host I think you speak russian, so may be this will be >>> somehow helpful for you >>> http://community.livejournal.com/ru_root/2216389.html >> >> Thanks -- I have looked through the websites of some distributed filesystems >> (Ceph, GlusterFS, MooseFS etc) and checked this thread too, but from what I >> could find, all filesystems I read about so far are at most capable of RAID0 or >> RAID1-like modes, where fault-tolerance is either not provided, or achieved >> only by "all data is replicated across N nodes", which of course divides the >> total usable space by N. I haven't found any FS which would do block-level >> replication relying not on dumb copies, but on RAID5/6-like parity algorithms >> for fault-tolerance. Maybe I missed something? > > You likely won't find any distributed filesystem that performs block > level replication over the network, at least not a FOSS one. These are > filesystems, mind you, not distributed block device drivers. If they > perform any replication to afford a level of fault tolerance, it will be > at the file level, not the block level. > > If you want true block level replication over a network, look into DRBD. > However, it is also limited to mirroring. > > -- > Stan > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Roberto Spadim Spadim Technology / SPAEmpresarial -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
