Re: can swap space be resized ?

From: sharona (sallan1055_at_aol.com)
Date: 08/23/03 

Date: 22 Aug 2003 21:42:20 -0700

aisinghal@sapient.com (Aishwarya) wrote in message news:<641f9193.0308220203.25b75da5@posting.google.com>...
> hi all,
>
> i need to increase swap space on one of our UNIX boxes. is it possible
> to do it ? if yes, how can i do it ? does it require a restart of the
> server (i would want to avoid that, if possible)?
>
> also, is there a guideline on what the ideal size of swap space should
> be (percentage of total available disk space) ?
>
> also, i have made a few strange (i.e. strange to me) observations ..
> when i do a top on my server, it says that there's some xxx M of swap
> space is free which usually is quite low and which indicates that swap
> space utilisation is quite high. however, when i do a df -k, the swap
> space partitions (/tmp) show a 5% utilization. am i reading the data
> wrongly? how do i monitor the actual status of swap space utilization
> at any point in time ?
>
> Looking forward to any pointers / help.
>
> Regards
> Aishwarya

You can add swap space any time you need to and have the space for it.
 Do a man on swap. If you have the space you'ld do a mkfile
whateversize filename and then a swap -a /path/to/newswapfile. You'll
need to make sure it's added to the /etc/vfstab. To monitor swap
space you'ld do a swap -l or a swap -s I believe.

Sharona

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