On Mon, Jun 29, 2009 at 11:37 PM, Mickey Mazarick <mic at digitaltadpole.com>wrote: > Have you seen a distributed parallel fault tolerant file system that > doesn't take a serious hit doing mmaps or direct io? > This is a serious question, I've installed luster to contrast recently and > it didn't measure up but I'm wondering what other DPFT filers anyone has > tried and for what applications? > The wiki list is here: > http://en.wikipedia.org/wiki/List_of_file_systems#Distributed_parallel_fault_tolerant_file_systems This is a very interesting topic. I would also appreciate ML feedback on this. > > <http://en.wikipedia.org/wiki/List_of_file_systems#Distributed_parallel_fault_tolerant_file_systems> > > Can anyone give a positive or negative on any of these? Perhaps we can use > some of the positives of others to drive gluster development. Well, it's not listed there and in fact I don't know if I could add this to that DPFT list, but on FreeBSD we have a interesting framework to handle Devices, GEOM: Modular Disk Transformation Framework [ http://www.freebsd.org/doc/en/books/handbook/geom.html ] above this I can add "geoms". In this Distributed scenario I can plan to have a base GEOM with a bunch of distributed disks agregated via GEOM GGATE and above that some RAID0 or so. I have a very positive impressions about this. Friends are using this in production. Francisco > > > -Mic > > > Nathan Stratton wrote: > >> On Mon, 29 Jun 2009, Todd Daugherty wrote: >> >> I have not used it in production yet but I did a test with: >>> http://gluster.org/docs/index.php/Translators/cluster/stripe >>> >>> That was quite nice across 8 servers for Quicktime files (average file >>> 1GB). >>> >>> Why would you say no to Xen VM files? >>> >> >> Because with xen you need to --disable-direct-io-mode to get it to work >> and that kills performance. >> >> Raw disk: >> 8589934592 bytes (8.6 GB) copied, 21.0523 seconds, 408 MB/s >> >> Gluster: >> 8589934592 bytes (8.6 GB) copied, 47.4356 seconds, 181 MB/s >> >> Gluster --disable-direct-io-mode >> 8589934592 bytes (8.6 GB) copied, 336.514 seconds, 25.5 MB/ >> >> >> <> >>> >> Nathan Stratton CTO, BlinkMind, Inc. >> nathan at robotics.net nathan at blinkmind.com >> http://www.robotics.net http://www.blinkmind.com >> >> _______________________________________________ >> Gluster-users mailing list >> Gluster-users at gluster.org >> http://zresearch.com/cgi-bin/mailman/listinfo/gluster-users >> > > > > > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://zresearch.com/cgi-bin/mailman/listinfo/gluster-users > -- blog: http://sufixo.com/raw http://www.linkedin.com/in/franciscocabrita -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://zresearch.com/pipermail/gluster-users/attachments/20090630/9df48b12/attachment.htm>
