Hi Hantzley You should read PowerPath Release Notes (P/N 300-001-969) or at least it's page 15 ;-) "EMC pseudeo devices are not supported with LVM. Instead, native SCSI devices must be used..." I think EMC messed up with device names as seeen in /proc/devices under "Block devices" and LVM doesn't recognize them. They used to be called emcpower in older versions of PP I think, now they are "emcp". Regards, Chris On Fri, 27 May 2005 11:11:40 +0400 Hantzley Tauckoor <hantzley@telecomplus.net> wrote: > Hi, > > I have a CX300 Clariion and a x445 IBM (4 processors and 4GB RAM) server > equipped with 2 Emulex FibreChannel cards which are directly connected > to the cx300's controllers. > > My software config is as follows: > > Redhat ES 3.0 with Kernel 2.4.21-20.ELsmp > PowerPath 4.3.1 > LPFC 2.4 driver kit 7.2.4-1 > lvm-1.0.3-15 > > > I created 2LUNs on the cx300, and therefore I can see 4 sd devices on > linux (2 on one path and 2 on the other). After installing PowerPath, I > am able to access the LUNs via /dev/emcpowera1 and /dev/emcpowerb1 > respectively. > > But I cannot use LVM on these devices directly. However LVM works with > /dev/sd* devices. I wish to use it with the PowerPath devices instead, > so as to have dynamic multipathing. > > I also tried to install Veritas Volume Manager; no luck, the eval > version was compiled for kernel.2.4.xx-Hugemem - which is not my present > kernel. I have incompatibility problems because PowerPath 4.3.1 requires > at kernel 2.4.21-15 or 2.4.21-20. > > Is there someone who had the same type of problem? Any tip on how to > make LVM run with PowerPath devices? > > Thank you in advance for your replies. > > Rgds, > > Hantzley Tauckoor > ---------------------------------------------------- > Project Manager > Telecom Plus Ltd > www.telecomplus.net > ---------------------------------------------------- > > > _______________________________________________ > linux-lvm mailing list > linux-lvm@redhat.com > https://www.redhat.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ > _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
