its been my experience that a failed card in any slot generally causes issues with the system overall. Wouldn't matter if you have two of the same card if one fails the system usually hangs, crashes, etc.
-Chris On Mon, Aug 10, 2009 at 3:36 PM, Trevor Benedict<[email protected]> wrote: > Thanks guys. > I'm just shocked that there isn't a hardware solution for this. > The way I would like it setup is that theres a Master controller, and a > Slave controller. The Kernel driver would know of both of them and only send > data to the Master. If there was a major error, it would switch to the > Slave, and run off that. To link the Master and Slave I would just use PCI-E > 16x, and or a cable between the two, kind of like Nvidia SLI. And if the > driver was smart enough, send data to both, so if the card dies right in the > middle of a commit, the other side will for sure get the data. Im sure > theres a smart way of doing it. > Yes I know doing Software RAID 1 in Linux is very possible, but I don't want > to have to deal with another layer of disk access. Also this isn't a huge > array, only ~400MB, and using SAS :) > > -- Trevor > > > On Mon, Aug 10, 2009 at 1:31 PM, Chris Louden <[email protected]> wrote: >> >> A cheaper solution to iSCSI/Fiber for a SAN is Coraid. AOE is very fast. >> >> www.coraid.com >> >> -Chris >> >> >> >> On Mon, Aug 10, 2009 at 1:13 PM, Dino K<[email protected]> wrote: >> > Just as an additional tip, there are now iSCSI solutions that provide >> > dual >> > controller redundancy such as some of the Equalogic stuff from Dell. >> > >> > Again NetApp does most of everything you want, iSCSI or FCAL with >> > multicontroller, with iSCSI you won't need an FCAL switch. >> > >> > The advantage of such an external SAN unit is that you can do >> > Snapshotting >> > for added redundancy even though with INNODB (if you are using it) >> > you'll >> > still have to manually dump the DB for snapshotting. >> > >> > -DK >> > >> > On Mon, Aug 10, 2009 at 1:33 AM, Trevor Benedict <[email protected]> >> > wrote: >> >> >> >> I was just having a conversation in the irc about RAID. >> >> >> >> Does anyone know of a hardware raid system that would have (in the same >> >> box) 2 raid cards, and it act like a RAID 1 or 1+0 or even a RAID 5/6? >> >> Same >> >> mobo/cpu. >> >> >> >> I would think someone like 3ware would have such a thing. This way you >> >> don't have to have a 2nd xU mirror, and have to do "real time" >> >> replication, >> >> and IP stuff. >> >> Linux does support hotswap pci-e. I guess the single point of failure >> >> is >> >> the mobo and such. >> >> >> >> I only bring this up because I had a 3ware card fail on me last Monday. >> >> It >> >> was a MySQL master. >> >> >> >> Thanks, >> >> -- Trevor Benedict >> >> >> >> >> >> _______________________________________________ >> >> LinuxUsers mailing list >> >> [email protected] >> >> http://socallinux.org/cgi-bin/mailman/listinfo/linuxusers >> >> >> > >> > >> > _______________________________________________ >> > LinuxUsers mailing list >> > [email protected] >> > http://socallinux.org/cgi-bin/mailman/listinfo/linuxusers >> > >> > >> _______________________________________________ >> LinuxUsers mailing list >> [email protected] >> http://socallinux.org/cgi-bin/mailman/listinfo/linuxusers > > > _______________________________________________ > LinuxUsers mailing list > [email protected] > http://socallinux.org/cgi-bin/mailman/listinfo/linuxusers > >
