nfs filesystem size

[Dan Nelson]

In the last episode (Apr 21), Jesse Geddis said:
> We have a NetApp FAS940 with a current storage size of 1.266 TB. FreeBSD is
> reporting the following:
> 
> Filesystem              Size   Used  Avail Capacity  Mounted on
> /dev/da0s1a             2.0G    56M   1.8G     3%    /
> /dev/da0s1f             9.8G   1.9G   7.1G    21%    /usr
> /dev/da0s1g             5.2G    82M   4.7G     2%    /usr/home
> /dev/da0s1e              15G   161M    13G     1%    /var
> procfs                  4.0K   4.0K     0B   100%    /proc
> 10.0.0.100:/vol/www01 -811.2G   465G   771G   -57%    /www
>
> is this a limitation of how large a filesystem freebsd can report or
> are we running into something else that is fixable here? Thanks in
> advance.

I think I traced it to a variable overflow in nfs_vfsops.c:nfs_statfs().
I have a 1.4TB filesystem that occasionally (but not always) goes
negative too.  It just affects the results of the statfs/statvfs()
calls, so the only thing it really hurts is 'df'.

Filesystem        Size   Used  Avail Capacity  Mounted on
novell1:/vol1     1.4T   1.1T   314G    78%    /a/novell1/vol1

-- 
	Dan Nelson
	dnelson at allantgroup.com