On Thu, 23 Dec 2010, Gregory K. Ruiz-Ade wrote: > On Dec 23, 2010, at 10:53 AM, [email protected] wrote: > >> I've run 45 drive software raid arrays, and I had multiple instances of >> double drive failures over a couple years of operation. As a result, with >> that size of an array, I won't do anything short of double-redundancy. I >> don't know if you can configure raid10 to keep 3 copies of everything or not. > > In the mdadm manpage under --layout, it specifies that the default is > --layout=n2, which is two copies, and you can change the number to a maximum > of the number of devices in the array. So, --layout=n3 would get you three > copies, etc.
I knowthat I've seen some posts on linux-kernel about problems with multiple copies in raid 1. I don't remember details, but that would indicatethat it's not as extensivly tested as other modes. David Lang _______________________________________________ Tech mailing list [email protected] https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
