Hi,
I don't know if it is the good place to ask for such a problem, if not
please apologize.
I have a pseudo active/active NFSv4 configuration: 2 NFSv4 servers
(1:1.1.2-6lenny1), exporting 3 filesystems. Each filesystem are
connected to a SAN volume, via iscsi and multipath.
filer-01 :
/var/local
10.0.0.0/16(rw,fsid=0,crossmnt,insecure,async,no_subtree_check)
/var/local/large
10.0.0.0/16(rw,insecure,async,no_subtree_check,no_root_squash,fsid=3)
filer-02 :
/var/local
10.0.0.0/16(rw,fsid=0,crossmnt,insecure,async,no_subtree_check)
/var/local/small
10.0.0.0/16(rw,insecure,async,no_subtree_check,no_root_squash,fsid=1)
/var/local/medium
10.0.0.0/16(rw,insecure,async,no_subtree_check,no_root_squash,fsid=2)
filer-01 share a volume on the first SAN, filer-02 share 2 volumes on
the second SAN.
I have to do a firmware upgrade on the SANs, so I have to umount
/var/local/* on the nfs servers. On way could be to relocate NFS root FS
from /var/local to /var/maintenance with empty directories large, medium
and small
But how to do that ? I try to change /etc/exports then exportfs -rvf,
but got "Stale NFS file handle" on clients...
If not, is there a better way to do that, without to shutdown NFS servers ?
--
Greg
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