On Fri, May 10, 2013 at 15:20:37PM -0500, Dimitri Maziuk wrote: > > Any reason you can't set your disks up in a RAID1 configuration?
> We had problems with mdadm and some sata controllers. Whether I can > configure 12 disks into 6 *stable* md raids remains to be seen. Linux software RAID works pretty much flawlessly. It's often advised to ditch hardware RAID, as that approach both limits flexibility as well as locking you in. That said, the component drives *must* have TLER turned *OFF* (many drives do not have that option, so be careful). > Obviously, the show-stopper would be #1 if mdadm turns out to be unhappy > with that particular hba card. If you're going to be using a SAN setup (e.g. fiber HBA), then you'd have to see what the SAN is capable of, although I daresay many of them would easily support something like that (invisible replication). I don't think you'd need mdadm when using a modern-ish SAN, anyway. Another possible idea to consider might be network RAID, Linux-style, using NDB/DRDB/AoE, etc. -- Henry Yen Aegis Information Systems, Inc. Senior Systems Programmer Hicksville, New York ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. This 200-page book is written by three acclaimed leaders in the field. The early access version is available now. Download your free book today! http://p.sf.net/sfu/neotech_d2d_may _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
