On Fri, 2009-06-26 at 14:55 -0500, James Bottomley wrote: > On Fri, 2009-06-26 at 12:45 -0700, Chandra Seetharaman wrote: > > Yes, Mike Christie and I were aware of this and it was one of the issue > > we were trying to resolve before we pushed scsi_dh interface upstream. > > (It is little complicated as we need the parameters to be set per > > vendor-product tuple). > > > > The original code I ported to scsi_dh interface was from Ed Goggin(who > > was working for EMC then). IIRC, he was also aware of this issue. > > > > When we pushed scsi_dh interface, we did get few of the EMC folks (on > > Cc) to review/test the code and they did, and this issue was not seen as > > a problem. > > > > We wanted to get back to that issue sometime later, got busy with other > > things, and it disappeared from my list of things-to-do as the > > regression was not seen as an issue (till now :)... I will get back to > > it. > > One way around this might simply be to make the device_handlers create a > sysfs interface for additional parameters. Then the multipath command Yes, having a per device interface is one of the options we considered. Once we have that defined we can either use sysfs or a scsi_dh_8() API to achieve the same. But we wanted to have it per vendor-product instead of per device, I don't recall the problems associated with it. Mike(C), do you recall ? > can feed them (or in a pinch, users relying on the features can pass > them in manually). Right at the moment having no possible work around > does appear to be an issue. I will try to roll up a patch soon. > > James > > > -- > dm-devel mailing list > dm-devel@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/dm-devel -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
