Bob, I would like to thank you for the time you took in helping me. I have implemented a GUI around what you wrote and it works fine. Thank you very much. Christopher ---------------------------------------- > Subject: Re: Finding out properties of GFS formatted partition > From: rpeterso@xxxxxxxxxx > To: linux-cluster@xxxxxxxxxx > Date: Sat, 19 Jan 2008 08:55:14 -0600 > > On Fri, 2008-01-18 at 18:47 +0000, Christopher Probst wrote: >> Hello, >> >> This is my first post/question on this mailing list, so I am sorry if >> the question sound naive. I have a GFS formatted partition(dev/hdb1) >> that is assigned to a cluster. I would like to know, if I can extract >> the following info of a particular GFS formatted partition >> >> 1) Cluster name it is assigned to >> 2) Number of journals; >> 3) lock method used. >> >> Is there any way to do this without getting a mount point involved? >> >> Thank you in advance >> Christopher > > Hi Christopher, > > 1. Cluster name is easy: > gfs_tool sb /dev/sdb1 table > 2. Number of journals is a bit more difficult. If the FS is mounted > you can do: gfs_tool df > However, since you said "without getting a mount point involved" I'll > assume that it's not mounted. You can still find out the number of > journals. In RHEL5, Centos5 and equivalent, you can do this: > gfs2_edit -p jindex /dev/sdb1 > (The gfs2_edit program recognizes gfs1 file systems as well as gfs2) > I'll warn you that the output is not very user-friendly. > > In RHEL4, Centos4 and equivalent there's no "good" way unless the > file system is mounted (again, use gfs_tool df). There is a "not > so good" way, which is to use "gfs_edit" to poke around, but you've > got to know what you're doing. You basically have to jump from the > superblock to the jindex and see how many entries are there. > Unlike gfs2_edit, gfs_edit is primitive and has no print option. > > It may not be relevant at this point in time, but for gfs2 starting > when RHEL5.2 is released (I think), I also added: > "gfs2_tool journals ". > 3. Lock method is easy: > gfs_tool sb /dev/sdb1 table > > Regards, > > Bob Peterson > Red Hat GFS > > > -- > Linux-cluster mailing list > Linux-cluster@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/linux-cluster _________________________________________________________________ -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
