If I were purchasing 800TB of storage for Lustre soon, I would want to take into consideration the fact that ZFS is the planned back end file system for Lustre in the next year or so.
>From what I understand, the best configuration for ZFS is lots of independent disks with ZFS doing RAID in software. The thumper provides this but with no ability to fail the disks over to another node. We have used DDN S2A fibre-channel attached storage in our large Lustre file systems to date. These are expensive, I guess because of the hardware RAID implementation, which is not needed with ZFS. However, we don't have to worry about JBOD enclosure management, detecting failed disks, etc. because this is all handled by the S2A firmware. So it seems like a configuration based on dual-hosted SAS JBOD's may be the way of the future, but I wouldn't do 800 TB of that without a good plan for enclosure and drive hardware management! Maybe Sun can help us out here with a supported product since they have taken over CFS and are also in the storage/ZFS business. (It must run Linux though :-) Jim On Sun, 21 Oct 2007, Mertol Ozyoney wrote: > Hi all; > > > > One of our HPC customers will be adding 800 TB of storage to their HPC > environment. > > > > I am in need of some expert advice regarding following questions. > > > > . I know that some installiations have used Sun thumper X4500's , > I'd like to learn pro's of cons of using Sun X4500's > > . If I use X4500 how can I provide redundancy ? What happens if a > node fails and how can I restore the node ? > > . What are the supported backup applications ? (Veritas, legato > etc..) Can we use incremantal backups on lustre ? > > > > regards > > > > > <http://www.sun.com/> http://www.sun.com/emrkt/sigs/6g_top.gif > > Mertol Ozyoney > Storage Practice - Sales Manager > > Sun Microsystems, TR > Istanbul TR > Phone +902123352200 > Mobile +905339310752 > Fax +902123352222 > Email <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED] > > > > > > _______________________________________________ Lustre-discuss mailing list [email protected] https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
