alternate pathing with lvm?

Hi all,

following the discussions in last June and Hovember, resp. I want to ask oncemore wether there is an alternate pathing with the linux-lvm possible or not. We are using several HP MC/SG-Cluster and want to implement an Linux-Cluster with the RadHat Cluster Software too. In the backend there is a HP XP512 and a SAN; the Linuxserver shell be connected to the Storagebox via two FC-HBAs (like the HP servers are). We do not need an online load balancing, all we want is to have a feature for continous work during firmwareupdates, configuration works on FC-switches and so on.

regards
Stephan

--
LDS Brandenburg
Dr. Stephan Hendl
fon: +49-(0)331-39 471
fax: +49-(0)331-27548 1187
EMail: [email protected]

The Linux LVM does not currently support alternate pathing (or, as HP calls it, alternate PV links). LinuxCare did some work on a generic SCSI alternate pathing feature for the Sun S3 StorEdge arrays (see the LinuxCare web site for more info on this). I have been giving some thought to implementing alternate pathing on the "md" level. Basically, the lower it is implemented in the driver stack, the more generic and useful it is. I do not know whether alternate pathing is in Sistina's (or anyone's) roadmap, but it sure would be a cool feature!

++Jos

And thus it came to pass that Stephan Hendl wrote:
(on Wed, Mar 28, 2001 at 08:27:53AM +0200 to be exact)

assert(heaven.isMissing(anAngel));

Multi-pathing is not present at the moment, but we will be adding support to the 1.1 development stream in the next couple of months.

- Joe