Until and unless i know how the WWID is being generated , it is tough to relate what the document is describing. Also to identify the shared luns , I need to know more about WWID. thanks --- On Wed, 6/10/09, Chandra Seetharaman <sekharan@xxxxxxxxxx> wrote: > From: Chandra Seetharaman <sekharan@xxxxxxxxxx> > Subject: Re: Question regarding multipath WWID > To: "device-mapper development" <dm-devel@xxxxxxxxxx> > Date: Wednesday, June 10, 2009, 3:54 PM > What is your purpose for needing to > know how WWID is generated ? > > Do you want to identify and name them the same in both the > nodes ? > > On Wed, 2009-06-10 at 12:01 -0700, Lavannya wrote: > > Hi, > > > > Recently I am trying to test few luns with > multipath , in two of my > > > > test server. I worked throughly with PowerPath. > > > > > I have few questions on multipath: > > > > - what is the logic > redhat is using to create the WWID > > and what are the fields > involved > > > > - I am trying to test > with the shared luns (devices) between > > two nodes. How i will > identify the device id in multipath. > > Though as per Redhat > , they are telling WWID is the identifier. > > But how i will identify the > device id in the WWID? > > It is very much needed > specially for shared luns. In PowerPath, > > generally all the > devices are identified by the > > lun id /device > id then , > > I use the Pseudo name > (linux), for configuring the devices. I will > > assume that WWID is > similar as Pseudoid. If not, pl. correct me. > > > > - Where can i match the > device id in the WWID.. > > > > It will be really appreciated , if someone > clears all my questions. > > > > Thanks in advance. > > > > > > > > > > > > > > > > -- > > 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 > -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
