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тАО02-22-2010 07:25 AM
тАО02-22-2010 07:25 AM
maxswapchunk problem
server got rebooted and in syslog we got this alert..
vmunix: Unable to add all swap for device: /dev/vg00/lvol11. Increase the tunable parameter maxswapchunks by 6144 and re-configure your system..
attached the output of vgdisplay and pvdisplay ..
so how can we proceed now
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тАО02-22-2010 07:35 AM
тАО02-22-2010 07:35 AM
Re: maxswapchunk problem
As per the log "swapinfo -tam"
its looks your swap device dev/vg00/lvol11 is up.
Suraj
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тАО02-22-2010 07:42 AM
тАО02-22-2010 07:42 AM
Re: maxswapchunk problem
Looks like you added 20 GB of swap to the system.
LV Name /dev/vg00/secswap
LV Status available/syncd
LV Size (Mbytes) 20480
Current LE 1280
Allocated PE 2560
Used PV 2
Now with sam or kmtune/kctune increase the parameter indicated in the message and reboot again so the swap is recognized.
swapinfo -tam would be helpful in seeing why it was necessary to go from 4 GB of swap to 24 GB of swap.
It would also tell us how much memory is in your system, which would allow us to advise you an a good swap number.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
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тАО02-22-2010 09:17 AM
тАО02-22-2010 09:17 AM
Re: maxswapchunk problem
I always max this out to 16384.
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тАО02-23-2010 01:37 AM
тАО02-23-2010 01:37 AM
Re: maxswapchunk problem
LV Status available/syncd
LV Size (Mbytes) 20480
Current LE 1280
Allocated PE 2560
Used PV 2
apart from secswap lv ,, we have lvol1 for swap.
both entries has been made in fstab
so total we are having 40 gb of swap space.
when we discused with back end team they are saying this is not a problem..
my doubt is will it affect anything..