Add swap and rebuild kernel on Itanium (hp-ux 11:23)

[Alex Ferreira]

G'day all,

I have to add more swap space on an itanium box we have. I will be using a whole disk for swap. Now, I have done the following.

1.pvcreate /dev/rdsk/c29t7d0
2.vgextend /dev/vgswap /dev/dsk/29t7d0
3.lvcreate -L 8192 -n swap2 /dev/vgswap
4.swapon /dev/vgswap/swap2

Now, the message I am getting is:
"The kernel tunable parameter "swchunk" needs to be increased to add paging on device /dev/vgswap/swap2"

I guess the above is asking that I increase swchunk. I am not sure what the steps are to rebuild a kernel on an itanium.

I guess my question is, 1)am I doing the correct thing with trying to add the extra swap to an entire disk, and 2) what are the steps on rebuilding the kernel on an itanium.

Thanks dearly,

Alex

[Duncan Edmonstone · Accepted solution]

Alex,

Very simple...

kctune swchunk=

then reboot

shutdown -r -y 0

Look at the man page for swchunk to figure out the value you need to set it to.

HTH

Duncan

[Alex Ferreira]

Duncan,

legend for replying so quickly. I have changed swchunks accordingly. Thanks mate.

Can I ask you if the steps I have taken are correct in creating the swap?

Alex

[Duncan Edmonstone]

Alex,

Looks OK, but you do need to add the additional swap into /etc/fstab as well so it gets activated automatically at boiot time.

HTH

Duncan

[Alex Ferreira]

Duncan,

I very much appreciated your response. Cheers mate,

Alex

[Alex Ferreira]

Once again, thank you Duncan.

Alex