 | | | Swap space | Swap space 2004-11-03 - By Robert
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Andreas Lund wrote:
>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.
>
Not exactly. Check man mkswap and man fstab for instructions on
creating a swap file. You CAN have both a swap partition and a swap
file. I did this in RH6.0 because of my own foolishness during
installation. Basically, you have to create an empty file, use mkswap
to format it, an the entry in /etc/fstab and activate it with swapon.
>
>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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The time is Wed Nov 3 07:18:37 CST 2004
It has been 47917 seconds since the Chump Challenge began!
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