LVM with Powerpath - incompatibility
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
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Quoted 2 lines · Hantzley Tauckoor
Is there someone who had the same type of problem? Any tip on how to make LVM run with PowerPath devices?
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=124647
which is the first hit on google with keywords "lvm powerpath redhat 3.0"
Signature · 6 lines
Luca Berra -- [email protected] Communication Media & Services S.r.l. /"\ \ / ASCII RIBBON CAMPAIGN X AGAINST HTML MAIL / \
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
Quoted 49 lines · On Fri, 27 May 2005 11:11:40 +0400 Hantzley Tauckoor…
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-1.0.3-15I 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/emcpowera1and/dev/emcpowerb1respectively.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
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
Thanks mate.
I'll dig into the doc.
Rgds,
Hantzley
Quoted 67 lines · Chris Osicki
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/devicesunder "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,
ChrisQuoted 32 lines · On Fri, 27 May 2005 11:11:40 +0400 Hantzley Tauckoor…
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-1.0.3-15I 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/emcpowera1and/dev/emcpowerb1respectively.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
----------------------------------------------------Quoted 8 lines
_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/_______________________________________________
linux-lvm mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/