Linux AS 3 swap question!!

[mac]

Appreciate your response ..Thanks ..i juts have a couple of queries

1)i have  a swap partion of 16 GB ...how can i go about decreasing the size
of this partition  ie the size of swap

2)Can both the swap file and partition coexist ??

3)WHich is a better approcah ..partition or file and which exists after
every reboot

Really appreciate your help here

Thanks

On 2/26/06, Rick Stevens <rstevens at vitalstream.com> wrote:
>
> On Sat, 2006-02-25 at 23:09 +0530, mac wrote:
> > Hi,
> > We have a Linux EL AS 3 running on a poweredge server with 8 GB
> > ram ...we would like to know how to change the swap space on a linux
> > AS 3 system dynamically
> >
> >  and would AS3 support a swap size of 16 GB
> >
> > any pointers appreciated
>
> You can have up to 16 swap sections but each is limited to 2GB each,
> giving a total of 32GB of swap.  You can't change the swap size
> dynamically, since the swap is on a fixed-size partition or file.  You
> can enable and disable various swap files or partitions using the
> swapon(8) or swapoff(8) commands.
>
> Swap has to be either a separate partition OR a zero-filled file.  You
> probably know how to make a swap partition.  To create a swap _file_:
>
> 1. Find a partition that has enough free space for the swap you want.
>
> 2. As root, do:
>
>         # dd if=/dev/zero of=/path/to/swap/file count=size
>
> For example, to create a 2GB swap file called "/var/swapfile":
>
>         # dd if=/dev/zero of=/var/swapfile count=2G
>
> 3. Convert the file to a swap file:
>
>         # mkswap /var/swapfile
>
> 3. Activate via:
>
>         # swapon /var/swapfile
>
> 4. Edit your /etc/fstab file and add a line for this swap file so it'll
> activate on the next boot:
>
>         /var/swapfile   swap          swap    defaults        0 0
>
> Voila!
>
> ----------------------------------------------------------------------
> - Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
> - VitalStream, Inc.                       http://www.vitalstream.com -
> -                                                                    -
> -        God is real...........unless declared integer or long       -
> ----------------------------------------------------------------------
>
> _______________________________________________
> Redhat-install-list mailing list
> Redhat-install-list at redhat.com
> https://www.redhat.com/mailman/listinfo/redhat-install-list
> To Unsubscribe Go To ABOVE URL or send a message to:
> redhat-install-list-request at redhat.com
> Subject: unsubscribe
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/redhat-install-list/attachments/20060226/a7604ee3/attachment.htm>