Joel, Thanks for the reply. Wondering if you have a sample udev set up using power path on hand that I can use to get going.
Thanks On Wed, Jun 10, 2009 at 12:43 PM, Joel Becker <joel.bec...@oracle.com>wrote: > On Wed, Jun 10, 2009 at 12:22:03PM -0500, Sridhar Avantsa wrote: > > OEL 5, OCFS 1.4, using EMC Power Path for multi pathing. > > > > I want t mount the OCFS2 file system on the emc power path device. > > I can mount by UUID, and not have to worry about persistent bindings > across > > nodes. > > But how do I make sure when it mounts by UUID , that the pwoer path > device > > is used. > > > > Any help will be much appreciated. > > There are two things you can do. The first is to not worry, > because PP takes over all devices. That is, if 'sda' and 'sdb' are two > paths of 'emcpowera', it doesn't matter whether you open /dev/sda1, > /dev/sdb1, or /dev/emcpowera1. PP has hijacked the devices and is used > in all cases. > Now, a lot of people consider this to be unkosher and wish that > PP didn't hijack the devices. Maybe in the future EMC will change this. > You can, of course, not worry about it until they do. > The other alternative is to use udev to ensure you have a device > name that points to the right device. Then you just mount by the device > name. For example, a udev rule that only triggers on 'emcpower*' > devices, checks that they are ocfs2 volumes, and then creates > /dev/mydisks/<uuid> for them. > > Joel > > -- > > Life's Little Instruction Book #396 > > "Never give anyone a fruitcake." > > Joel Becker > Principal Software Developer > Oracle > E-mail: joel.bec...@oracle.com > Phone: (650) 506-8127 > -- Sridhar Avantsa savan...@gmail.com
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