[OpenAFS] vos examine oddity

[Dexter Kimball]

Jeffrey Hutzelman wrote:
> It is about the volume being examined, but what it tells you are that 
> volume's relations to other volumes in the same "volume group" on the 
> fileserver.  Recall that a volume group is essentially a set 
> of volumes 
> that share inodes (through cloning and copy-on-write).

Thanks for the clarification.  Let me see if I got it right.  (Ever use the
automated flight info line for United?  I'm beginning to sound like same.)

Sharing inodes entails "on same fileserver/partition," so all of the
information about the volume group pertains only to volumes found on the
same fileserver and partition as the volume being examined.

Kim


> -----Original Message-----
> From: openafs-info-admin@openafs.org 
> [mailto:openafs-info-admin@openafs.org] On Behalf Of Jeffrey Hutzelman
> Sent: Friday, January 28, 2005 7:19 PM
> To: dhk@ccre.com; openafs-info@openafs.org
> Subject: RE: [OpenAFS] vos examine oddity
> 
> 
> On Friday, January 28, 2005 05:34:27 PM -0700 Dexter Kimball 
> <dhk@ccre.com> 
> wrote:
> 
> > Jeffrey Hutzelman has clarified things nicely in his other email.
> > Jeffrey, I rephrase here to see if I got it:
> >
> > First line, " root.afs.readonly                 536901459 
> RO         10 K
> > On-line  " , refers specifically to the volume being 
> examined, saying in
> > effect "This particular volume is a type RO volume with 
> volID 536901459"
> >
> > Second line is location " magic.lab.ccre.com /vicepa"
> >
> > What Jeffrey clarifies is that the next line is _not_ about 
> the specific
> > volume being examined, but instead gives information about 
> the volume
> > "family" of which this volume is a member.
> 
>
> 
> 
> 
> > So " RWrite  536901458 ROnly          0 Backup          0     "
> >
> > reads
> >
> > I have a parent RW, ID 536901458.
> > I, the RO volume, am not replicated.  (There may be other 
> replicas like
> > me, but I myself am not the source/parent of any replica)
> > I, the RO volume, do not have a corresponding Backup volume 
> (My parent RW
> > may have a Backup volume, but I am not the source/parent of 
> any Backup
> > volume)
> 
> Yes, as long as you bear in mind that these are about 
> relationships between 
> volumes on disk, and not on any other partition or server.
> 
> -- Jeff
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