Regarding NFS

[Kavita Poonia]

Hello there,

I have to mount one NFS from one server to another with rsize=32768, wsize=32768, then what command should I use.

Thanks a lot !

[Safarali · Accepted solution]

hi Kavita

first you have to mention the directory in /etc/exports
then you have to export it

exportfs -a /directory

from client you can mount the dirctory
make sure nfs is running on both server
if you have any question please let me know

Regards
Safar

[Yogeeraj_1]

hi kavita,

On a HP-UX server, you can simply add a similar line in your /etc/fstab:
srv2:/dir1 /mnt/srv2/dir1 nfs rw,suid 0 0

In fact, flags below are implemented by default:
Flags: vers=3,proto=tcp,auth=unix,hard,intr,link,symlink,devs,rsize=32768,wsize=32768,retrans=5


You can see this by running command:
nfsstat -m


On a Linux server, you add the line as follows:
srv2:/dir1 /mnt/srv2/dir1 nfs rw,bg,hard,nointr,rsize=32768,wsize=32768,tcp,vers=3,timeo=600,actimeo=0 0 0


hope this helps!
kind regards
yogeeraj

[Yogeeraj_1]

hi again,

Sorry, i think i made an omission. The default is not the same for hp-ux 11.0 and after 11.0.

HP-UX 11.0 does not use 32768 as the default read/write size. It uses 8K. HP-UX releases after 11.0 (11.11 and 11.23) do use 32768 as the default but 11.0 still uses 8K as the default read/write size if you do not specify.

In fact, HP-UX 11.0 uses UDP/PV3/8K by default unless you enable TCP support, at which time TCP becomes the default.

Question:
Which version of HP-UX do you have?


see:
http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=985769

and also:
http://docs.hp.com/en/5991-1153/index.html


kind regards
yogeeraj

[Yogeeraj_1]

hi again Kavita,

the mount options are summarized here:

http://docs.hp.com/en/5992-0715/ch02s03.html#bghdijij



hope this helps too!
kind regards
yogeeraj

[Kavita Poonia]

Thanks a lot Safarali !
It helped a lot.

Thanks a lot Yogeeraj for your efforts. I have HPUX11.11 version. So the default rsize and wsize of 32768 will come autopmatically but what should I do in case of HPUX11.00 version to get the rsize and wsize of 32768.

Again thanks a lot guys !

[Yogeeraj_1]

>but what should I do in case of HPUX11.00 version to get the rsize and wsize of 32768.

The syntax is:
server:remote_directory local_directory nfs defaults 0 0

or

server:remote_directory local_directory nfs option[,option...] 0 0


Therefore, you will have to amend the fstab entry accordingly. e.g.

srv2:/dir1 /mnt/srv2/dir1 nfs rsize=32768,wsize=32768,tcp 0 0


hope this helps too!
kind regards
yogeeraj

[Sajjad Sahir]

Dear kavihta
make an entry in /etc/exports file in server1
eg:/home/sajjad/file1

use exportfs -a command for exporting

once u exported file u can see
it by using
showmount command
then server2
make a directory
eg:tmp1
thne mount
mount server1:/home/sajjad/file1 /tmp
cd tmp
u can see file there
thanks and regards
sajjad

[Kavita Poonia]

Thanks a lot Yogeeraj for the details you have provided....that means I have to specify options instead of writing "defaults" in /etc/fstab. This is really great and very helpful.

[Kavita Poonia]

Hey hi Sajjad,

Thanks a lot for making me understand the whole procedure but I just wanted to know about defining rsize and wsize=32768 in case of HP-UX11.00 version. But the whole procedure was really helpful.....it has refreshed my concepts.

[Sajjad Sahir]

dear Kavitha

I thin now u got concept about it
how to define in /etc/exports file and /etc/fstab file etc...
in /etc/fstab file u can see
/dev/vg00/lvol3 / vxfs delaylog 0 1
/dev/vg00/lvol1 /stand hfs defaults 0 1
/dev/vg00/lvol4 /tmp vxfs delaylog 0 2
/dev/vg00/lvol5 /home vxfs delaylog 0 2
/dev/vg00/lvol6 /opt vxfs delaylog 0 2
/dev/vg00/lvol7 /usr vxfs delaylog 0 2
/dev/vg00/lvol8 /var vxfs delaylog 0 2
/dev/vg00/u01 /u01 vxfs rw,suid,largefiles,delaylog,datainlog 0 2
/dev/vg01/u02 /u02 vxfs rw,suid,largefiles,delaylog,datainlog 0 2
data2:/u03 /u03 nfs rw,suid 0 0

see lvol1
this one has to mount at the mount point /stand and file system type hfs defauls means r/w and 5ht column is future reference and the last column is in which order fsck has to check
what i mean is if u want to mount file system permanently u should have to make an entry in /etc/fstab file.
now i think u can understand entries present in the /etc/fstab file and also how to make an entry in /etc/fstab
thanks and regards

sajjad

[Kavita Poonia]

Hey hi Sajjad,

Yes, now I have understood the whole concept and about entries present in /etc/fstab too.Thanks a lot for all your efforts.


Thanks and regards,
Kavita