NFS mount/unmount death-slow

Hi

I got two machines witch both share disks to eachother by NFS.
Everything is working fine except:
Everytime i do a mount/unmount of a NFS shared disk, i have to wait about 3
minutes... and this appens in the two machines, mount in machine A a shared
disk of machine B, or mount in machine B a shared disk on machine A. In
both cases i have a 3 minute delay, either to mount and to unmount... after
a disk is mounted, then it seems to work allright.

some examples of my configuration:

fstab:
192.168.1.2:/home /mnt/Rede/JoaoTatiana/Users-Ro nfs
noauto,ro,user,sync,rsize=8192,wsize=8192

this is one mount entry in fstab... others are similar.




and...
# exportfs -v
/mnt/Sata1/Salvaguardas

<world>(rw,wdelay,root_squash,all_squash,anonuid=6 5534,anongid=65534)
/mnt/Sata1/Mirror

<world>(ro,wdelay,root_squash,all_squash,anonuid=6 5534,anongid=65534)


i have iptables permiting NFS protocols just for internal IPs
(192.168.1.xxx), but i'm thinking about changing this <world> stuff

i've got this problem for some time now, it wasn't allways like this, by the
time this things wore configured, this stuff worked allright, but them, one
of the systems wore upgraded to a new version and the other has been also
upgraded with new kernels.


Right now, i'm having trouble understanding where might the problem be...

Thanks for any hints
ArameFarpado

hi,

is your portmap daemon running?
/etc/init.d/portmap start

jewo

jewo wrote:

> hi,
>
> is your portmap daemon running?
> /etc/init.d/portmap start
>
> jewo

yes. portmap is running in both machines

regards
ArameFarpado