[CentOS] Issue mounting /home area from NAS server

Thu Dec 5 18:24:53 UTC 2013
Pat Haley <phaley at MIT.EDU>

Hi,

A quick follow-up.  I tried reverting back to the
set ups on both machines before we enabled quotas.
Rebooted both machines.  Still cannot mount /home
from the client (mseas).

Thanks.

> Hi,
> 
> Just before the Thanksgiving break, we enabled quotas on
> the /home areas on the mseas-data server (running CentOS 5.8),
> using the following line in the updated /etc/fstab
> 
> /dev/mapper/the_raid-lv_home /home              ext3
> defaults,usrquota,grpquota      1 0
> 
> Following the Thanksgiving reboot of mseas-data we have been
> experiencing problems with svn on mseas (our front-end machine,
> running CentOS 6.2). After consulting with the svn mailing list,
> it appeared to be a communication issue between mseas and mseas-data.
> We therefore rebooted mseas. Now mseas is not mounting /home.
> We get the following error
> 
> [root at mseas etc]# mount mseas-data:/home
> mount.nfs: Unknown error 521
> 
> We have tried this mounting with both of the following lines
> in fstab and got the same error
> 
> mseas-data:/home        /home               nfs     defaults        0 0
> 
> mseas-data:/home        /home               nfs
> defaults,usrquota,grpquota        0 0
> 
> (the latter was to mimic the mounting of /home on mseas-data)
> 
> The only thing we've found out on the web so far was advice
> on editting /etc/exports to have an "insecure" option for
> the export of /home, which we already had.
> 
> Any thoughts on how to resolve or debug this issue would
> be greatly appreciated.
> 
> Thank you.
> 
> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> Pat Haley                          Email:  phaley at mit.edu
> Center for Ocean Engineering       Phone:  (617) 253-6824
> Dept. of Mechanical Engineering    Fax:    (617) 253-8125
> MIT, Room 5-213                    http://web.mit.edu/phaley/www/
> 77 Massachusetts Avenue
> Cambridge, MA  02139-4301
> _______________________________________________
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-- 

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Pat Haley                          Email:  phaley at mit.edu
Center for Ocean Engineering       Phone:  (617) 253-6824
Dept. of Mechanical Engineering    Fax:    (617) 253-8125
MIT, Room 5-213                    http://web.mit.edu/phaley/www/
77 Massachusetts Avenue
Cambridge, MA  02139-4301