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03-04-2006 02:44 PM
03-04-2006 02:44 PM
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03-04-2006 02:49 PM
03-04-2006 02:49 PM
Re: increase virtual memory
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=114225
http://docs.hp.com/en/B2355-90950/ch06s03.html
Also:
http://forums1.itrc.hp.com/service/forums/pageList.do?userId=CA1313467&listType=unassigned&forumId=1
http://forums1.itrc.hp.com/service/forums/helptips.do?#28
Rgds...Geoff
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03-04-2006 03:27 PM
03-04-2006 03:27 PM
SolutionBy VM ,I think you mean swap. You cannot increase Primary swap per se, because, the swap meeds a contiguos allocation of PE's and usually is LVOL2 in VG00 followed by LVOL3 which is root. So finding a Contiguous PE is mostly unlikely. But, There is a tricky solution to this , if you are interested in creasing "Primary swap" itself, rather than supplementing with the "secondary swap"...
I'm qouting the data here that I was going through which states how to increase the primary swap...
QOUTE"
Increase primary swap.
If you are using logical volumes, you may want to first attempt to extend the disk space allocated for the primary swap logical volume using the lvextend command or SAM. However, you will only succeed if disk space (physical extents) contiguous with the existing swap space is still available, which is unlikely. You must reboot the system for the changes to take effect.
If contiguous disk space is not available, you will need to create a new contiguous logical volume for primary swap within the root volume group, the volume group that contains the root logical volume. You do not need to designate a specific disk. For example:
lvcreate -C y -L 48 -r n -n pswap /dev/vgroot
After creating a logical volume that will be used as primary swap, you will need to use lvlnboot(1M):
lvlnboot -s /dev/vgroot/pswap
"END QUOTE
For more details refer the following link....
http://docs.hp.com/en/B2355-90672/ch06s07.html
regards,
Senthil Kumar .A
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03-05-2006 10:16 AM
03-05-2006 10:16 AM
Re: increase virtual memory
Thanks for the reply.
Is there any other way to increase virtual memoty. Adding secondary swap like that
regards
Arun
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03-05-2006 10:33 AM
03-05-2006 10:33 AM
Re: increase virtual memory
One other note: the maximum number of swapchunks will limit the amount of space you can add. swapchunks is a kernel parameter and when you exceed that value, swapon will give you a warning message that not all of the requested space could be added.
Bill Hassell, sysadmin
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03-05-2006 02:12 PM
03-05-2006 02:12 PM
Re: increase virtual memory
Could u please list out the commmands if i want to create new file system.In that case i may be adding one secondary swap sapce. correct?
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03-05-2006 03:32 PM
03-05-2006 03:32 PM
Re: increase virtual memory
I did not give a specific example because you need to know how much additional swap space is required, and whether that space is available on a specific filesystem. Also, if you don't specify a limit to the maximum amount of swap space on a filesystem, it could fill up the filesystem and cause other problems. It is much simpler to create a new logical volume and use that as your additional swap space.
Bill Hassell, sysadmin
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03-05-2006 04:00 PM
03-05-2006 04:00 PM
Re: increase virtual memory
ex:
1) creating a myswap LV with 500MB size.
lvcreate -L 500 -n myswap /dev/vg00
2) turn on the swap on the created LV..
swapon /dev/vg00/myswap
Verify by ..
swapinfo -tam
3) to make this swap permanent across boot..add the following line in /etc/fstab file.
/dev/vg00/myswap . swap defaults 0 0
Please note the second entry is "."
Regards,
Senthil Kumar .A
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03-09-2006 10:06 AM
03-09-2006 10:06 AM