 | | | Swap space | Swap space 2004-11-03 - By Andreas Lund
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Tue, 2 Nov 2004 15:34:14 -0000, "Harry Hambi" <harry.hambi@(protected)> wrote:
> Hi All,
> Trying to find out how much swap I have......remember configuring a swap
> file when I installed linux 7.2. the command I use is df -f ..no
> mentioned of a swap, how do you change the size of the swap space?.
Type "free", the last line tells you the total swap space, how much is in use
and hos much is free. Here's what mine looks like:
# free
total used free shared buffers cached
Mem: 513640 500984 12656 0 90064 334584
-/+ buffers/cache: 76336 437304
Swap: 481940 29696 452244
In Linux, you don't use a swap file but rather one or more swap partitions.
This means swap performance and reliability won't be affected by a fragmented
or busy file system, but the downside is you have to re-partition (or add a
new drive) if you want to change the size later on.
Here's what the main drive looks like on one of my servers:
# fdisk -l /dev/sda
Disk /dev/sda: 255 heads, 63 sectors, 1106 cylinders
Units = cylinders of 16065 * 512 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 523 4200966 83 Linux
/dev/sda2 524 1046 4200997+ 83 Linux
/dev/sda3 1047 1106 481950 82 Linux swap
Swap partitions are usually turned on by /etc/rc.sysinit during boot, but you
can also turn swap partitions on and off manually using the swapon/swapoff
commands to avoid unnecessary reboots.
Notice the partition type 0x82 meaning "Linux swap"
--
Andreas Lund (floyd@(protected)) - Net.adm - http://www.atc.no
Tel: +47 90.07.71.62 / +47 63.88.33.57 Fax: +47 21.69.09.10
Ano-Tech Computers AS - Din interaktive leverand?r
** He had a baseball bat and I was tied to a chair.
** Pissing him off was the smart thing to do. -- Max Payne
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