Very Computer

> Folks,

>    Where can I get info on improving NFS performance on AIX?

>    We are experiencing some problems when we have heavy load the AIX
>    system is mounting filesystems from a AUSPEX NFS file server.
>    Under heavy load on this system we get NFS write errors.

>    I also noticed couple of odd things. I increased the number of nfsd
>    biod in /etc/rc.nfs, but when I execute ps command after re-booting the
>    system it still starts default number of daemons.

>    [root]/etc>
>    -> grep nfsd rc*
>    rc.nfs:if [ -x /usr/sbin/nfsd -a -f /etc/exports ]; then
>    rc.nfs: start nfsd /usr/sbin/nfsd 20
>    [root]/etc>
>    -> grep bio rc*
>    rc.nfs:if [ -x /usr/sbin/biod ]; then
>    rc.nfs: start biod /usr/sbin/biod 8

>    [root]/etc>
>    -> ps -ef | grep nfsd
>        root   10334    5538   0   Feb 11      - 15:03 /usr/sbin/nfsd 8

>    [root]/etc>
>    -> ps -ef | grep biod
>        root   10592    5538   0   Feb 11      -  0:00 /usr/sbin/biod 6

>    How can I increase the number of biod daemons without re-booting the
>    system?

> --
> Hemant Shah                           /"\  ASCII ribbon campaign

>                                        X     against HTML mail
> TO REPLY, REMOVE NoJunkMail           / \      and postings
> FROM MY E-MAIL ADDRESS.
> -----------------[DO NOT SEND UNSOLICITED BULK E-MAIL]------------------
> I haven't lost my mind,                Above opinions are mine only.
> it's backed up on tape somewhere.      Others can have their own.

> :)Hi Hemant,
> :)
> :)edit the file /etc/rc.nfs to increase number of biod- or nfsd- daemons.
> :)After that you can
> :)1.) kill all nfsd and biod processes
> :)or
> :)2.) $ stopsrc -g nfs  # stop all processes of nfs group
> :)Finally restart nfs daemons by
> :)a.) $ /etc/rc.nfs
> :)or
> :)b.) $ startsrc -g nfs
> :)
> :)Hope it helps.
> :)
> :)Bye

>   That is the problem as I mentioned below. I had increased the number of
>   daemons and then re-dooted the system. It re-booted with fewer daemons.
>   I am not sure if re-starting the daemons will start more daemons.
> :)
> :)Dietmar Wuerth
> :)Compaq Computer Ltd. Switzerland
> :)
> :)
> :)
> :)Hemant Shah schrieb:
> :)
> :)> Folks,
> :)>
> :)>    Where can I get info on improving NFS performance on AIX?
> :)>
> :)>    We are experiencing some problems when we have heavy load the AIX
> :)>    system is mounting filesystems from a AUSPEX NFS file server.
> :)>    Under heavy load on this system we get NFS write errors.
> :)>
> :)>    I also noticed couple of odd things. I increased the number of nfsd
> :)>    biod in /etc/rc.nfs, but when I execute ps command after re-booting the
> :)>    system it still starts default number of daemons.
> :)>
> :)>    [root]/etc>
> :)>    -> grep nfsd rc*
> :)>    rc.nfs:if [ -x /usr/sbin/nfsd -a -f /etc/exports ]; then
> :)>    rc.nfs: start nfsd /usr/sbin/nfsd 20
> :)>    [root]/etc>
> :)>    -> grep bio rc*
> :)>    rc.nfs:if [ -x /usr/sbin/biod ]; then
> :)>    rc.nfs: start biod /usr/sbin/biod 8
> :)>
> :)>    [root]/etc>
> :)>    -> ps -ef | grep nfsd
> :)>        root   10334    5538   0   Feb 11      - 15:03 /usr/sbin/nfsd 8
> :)>
> :)>    [root]/etc>
> :)>    -> ps -ef | grep biod
> :)>        root   10592    5538   0   Feb 11      -  0:00 /usr/sbin/biod 6
> :)>
> :)>    How can I increase the number of biod daemons without re-booting the
> :)>    system?
> :)>
> :)>
> :)> --
> :)> Hemant Shah                           /"\  ASCII ribbon campaign

> :)>                                        X     against HTML mail
> :)> TO REPLY, REMOVE NoJunkMail           / \      and postings
> :)> FROM MY E-MAIL ADDRESS.
> :)> -----------------[DO NOT SEND UNSOLICITED BULK E-MAIL]------------------
> :)> I haven't lost my mind,                Above opinions are mine only.
> :)> it's backed up on tape somewhere.      Others can have their own.
> :)

> --
> Hemant Shah                           /"\  ASCII ribbon campaign

>                                        X     against HTML mail
> TO REPLY, REMOVE NoJunkMail           / \      and postings
> FROM MY E-MAIL ADDRESS.
> -----------------[DO NOT SEND UNSOLICITED BULK E-MAIL]------------------
> I haven't lost my mind,                Above opinions are mine only.
> it's backed up on tape somewhere.      Others can have their own.

> :)Hi Hemant,
> :)
> :)edit the file /etc/rc.nfs to increase number of biod- or nfsd- daemons.
> :)After that you can
> :)1.) kill all nfsd and biod processes
> :)or
> :)2.) $ stopsrc -g nfs  # stop all processes of nfs group
> :)Finally restart nfs daemons by
> :)a.) $ /etc/rc.nfs
> :)or
> :)b.) $ startsrc -g nfs
> :)
> :)Hope it helps.
> :)
> :)Bye

>   That is the problem as I mentioned below. I had increased the number of
>   daemons and then re-dooted the system. It re-booted with fewer daemons.
>   I am not sure if re-starting the daemons will start more daemons.
> :)
> :)Dietmar Wuerth
> :)Compaq Computer Ltd. Switzerland
> :)
> :)
> :)
> :)Hemant Shah schrieb:
> :)
> :)> Folks,
> :)>
> :)>    Where can I get info on improving NFS performance on AIX?
> :)>
> :)>    We are experiencing some problems when we have heavy load the AIX
> :)>    system is mounting filesystems from a AUSPEX NFS file server.
> :)>    Under heavy load on this system we get NFS write errors.
> :)>
> :)>    I also noticed couple of odd things. I increased the number of nfsd
> :)>    biod in /etc/rc.nfs, but when I execute ps command after re-booting the
> :)>    system it still starts default number of daemons.
> :)>
> :)>    [root]/etc>
> :)>    -> grep nfsd rc*
> :)>    rc.nfs:if [ -x /usr/sbin/nfsd -a -f /etc/exports ]; then
> :)>    rc.nfs: start nfsd /usr/sbin/nfsd 20
> :)>    [root]/etc>
> :)>    -> grep bio rc*
> :)>    rc.nfs:if [ -x /usr/sbin/biod ]; then
> :)>    rc.nfs: start biod /usr/sbin/biod 8
> :)>
> :)>    [root]/etc>
> :)>    -> ps -ef | grep nfsd
> :)>        root   10334    5538   0   Feb 11      - 15:03 /usr/sbin/nfsd 8
> :)>
> :)>    [root]/etc>
> :)>    -> ps -ef | grep biod
> :)>        root   10592    5538   0   Feb 11      -  0:00 /usr/sbin/biod 6
> :)>
> :)>    How can I increase the number of biod daemons without re-booting the
> :)>    system?
> :)>
> :)>
> :)> --
> :)> Hemant Shah                           /"\  ASCII ribbon campaign

> :)>                                        X     against HTML mail
> :)> TO REPLY, REMOVE NoJunkMail           / \      and postings
> :)> FROM MY E-MAIL ADDRESS.
> :)> -----------------[DO NOT SEND UNSOLICITED BULK E-MAIL]------------------
> :)> I haven't lost my mind,                Above opinions are mine only.
> :)> it's backed up on tape somewhere.      Others can have their own.
> :)

> --
> Hemant Shah                           /"\  ASCII ribbon campaign

>                                        X     against HTML mail
> TO REPLY, REMOVE NoJunkMail           / \      and postings
> FROM MY E-MAIL ADDRESS.
> -----------------[DO NOT SEND UNSOLICITED BULK E-MAIL]------------------
> I haven't lost my mind,                Above opinions are mine only.
> it's backed up on tape somewhere.      Others can have their own.

> :)Hi Hemant,
> :)
> :)edit the file /etc/rc.nfs to increase number of biod- or nfsd- daemons.
> :)After that you can
> :)1.) kill all nfsd and biod processes
> :)or
> :)2.) $ stopsrc -g nfs  # stop all processes of nfs group
> :)Finally restart nfs daemons by
> :)a.) $ /etc/rc.nfs
> :)or
> :)b.) $ startsrc -g nfs
> :)
> :)Hope it helps.
> :)
> :)Bye

>   That is the problem as I mentioned below. I had increased the number of
>   daemons and then re-dooted the system. It re-booted with fewer daemons.
>   I am not sure if re-starting the daemons will start more daemons.
> :)
> :)Dietmar Wuerth
> :)Compaq Computer Ltd. Switzerland
> :)
> :)
> :)
> :)Hemant Shah schrieb:
> :)
> :)> Folks,
> :)>
> :)>    Where can I get info on improving NFS performance on AIX?
> :)>
> :)>    We are experiencing some problems when we have heavy load the AIX
> :)>    system is mounting filesystems from a AUSPEX NFS file server.
> :)>    Under heavy load on this system we get NFS write errors.
> :)>
> :)>    I also noticed couple of odd things. I increased the number of nfsd
> :)>    biod in /etc/rc.nfs, but when I execute ps command after re-booting the
> :)>    system it still starts default number of daemons.
> :)>
> :)>    [root]/etc>
> :)>    -> grep nfsd rc*
> :)>    rc.nfs:if [ -x /usr/sbin/nfsd -a -f /etc/exports ]; then
> :)>    rc.nfs: start nfsd /usr/sbin/nfsd 20
> :)>    [root]/etc>
> :)>    -> grep bio rc*
> :)>    rc.nfs:if [ -x /usr/sbin/biod ]; then
> :)>    rc.nfs: start biod /usr/sbin/biod 8
> :)>
> :)>    [root]/etc>
> :)>    -> ps -ef | grep nfsd
> :)>        root   10334    5538   0   Feb 11      - 15:03 /usr/sbin/nfsd 8
> :)>
> :)>    [root]/etc>
> :)>    -> ps -ef | grep biod
> :)>        root   10592    5538   0   Feb 11      -  0:00 /usr/sbin/biod 6
> :)>
> :)>    How can I increase the number of biod daemons without re-booting the
> :)>    system?
> :)>
> :)>
> :)> --
> :)> Hemant Shah                           /"\  ASCII ribbon campaign

> :)>                                        X     against HTML mail
> :)> TO REPLY, REMOVE NoJunkMail           / \      and postings
> :)> FROM MY E-MAIL ADDRESS.
> :)> -----------------[DO NOT SEND UNSOLICITED BULK E-MAIL]------------------
> :)> I haven't lost my mind,                Above opinions are mine only.
> :)> it's backed up on tape somewhere.      Others can have their own.
> :)

> --
> Hemant Shah                           /"\  ASCII ribbon campaign

>                                        X     against HTML mail
> TO REPLY, REMOVE NoJunkMail           / \      and postings
> FROM MY E-MAIL ADDRESS.
> -----------------[DO NOT SEND UNSOLICITED BULK E-MAIL]------------------
> I haven't lost my mind,                Above opinions are mine only.
> it's backed up on tape somewhere.      Others can have their own.