[NFS] how to display fsid on client?

[Erik Bryer <erik_bryer@yahoo.com>]

I'm using (client and server) CentOS 5 (2.6.18). If I set the fsid to a small integer in the server's exports files (e.g. 1, 19 or 0x10, 0xffff and so on), then exportfs -arf, then unmount and mount on the client, I get the same device number from running ``stat'' on the mount point. It goes like this (client=10.10.99.102):
root@server# cat /etc/exports
/home           10.10.99.102(ro,sync,no_root_squash)
root@client# cat /etc/fstab | grep server
server:/home /n/server/home nfs hard,intr,bg,sync,ro  0 0
root@client# mount /n/server/home
root@client# stat /n/server/home
  File: `/n/server/home'
  Size: 4096            Blocks: 16         IO Block: 4096   directory
Device: 31h/49d Inode: 2           Links: 8
Access: (0755/drwxr-xr-x)  Uid: (    0/    root)   Gid: (  301/   users)
Access: 2010-01-08 14:15:43.000000000 -0500
Modify: 2009-03-09 18:42:01.000000000 -0400
Change: 2009-11-23 19:45:51.000000000 -0500
root@server# cat /etc/exports
/home           10.10.99.102(ro,sync,no_root_squash,sid=0x19)
root@server# exportfs -arf
root@client# umount /n/server/home
root@client# mount /n/server/home
root@client# stat /n/server/home
[ same information as above, specifically the same Device # ]

I've tried this many times, read the faq, and so on. Do I misunderstand? Is the st_dev, "ID of device containing file", as read on the client not going to be the same as what is forced by "fsid=n" in the exports file?


      

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