how can i increase swap area size

thiyagusham · 03-23-2014, 09:02 AM

Hi all ;

I want to increase swap area size.
Atleast i need 600mb for swap area.
I am planning to utilize from /u03.

How can i achieve that ??

PHP Code:



[root@gyan ~]# df -TH 
Filesystem    Type     Size   Used  Avail Use% Mounted on 
/dev/sda3     ext3      11G   3.6G   6.1G  37% / 
/dev/sda8     ext3     5.4G   146M   5.0G   3% /u03 
/dev/sda7     ext3     2.1G   125M   1.9G   7% /tmp 
/dev/sda5     ext3     6.1G   147M   5.7G   3% /u02 
/dev/sda2     ext3      16G   174M    15G   2% /u01 
/dev/sda1     ext3     152M    12M   132M   9% /boot 
tmpfs        tmpfs     1.1G      0   1.1G   0% /dev/shm 
/dev/hdc   iso9660     3.1G   3.1G      0 100% /media/Enterprise Linux dvd 20100405 
.host:/     vmhgfs     105G    52G    54G  49% /mnt/hgfs

Thanks all;

business_kid · 03-23-2014, 09:22 AM

Handiest thing would be to find another home for the 146M on /u03 and run these commands

Code:

umount /dev/sda8
mkswap /dev/sda8
swapon /dev/sda8

To prevent a load of errors, update /etc/fstab to look more like

Code:

/dev/sda8        swap             swap

rknichols · 03-23-2014, 09:38 AM

Quickest way is to use a swap file:

Code:

dd if=/dev/zero bs=1M count=600 of=/u03/swap600
mkswap /u03/swap600
swapon -v /u03/swap600

Then, add this line to your /etc/fstab to make it used automatically:

Code:

/u03/swap600    swap    swap    defaults    0 0

TB0ne · 03-23-2014, 11:06 AM

Quote:

Originally Posted by thiyagusham

Hi all ;
I want to increase swap area size. Atleast i need 600mb for swap area. I am planning to utilize from /u03. How can i achieve that ??

PHP Code:



[root@gyan ~]# df -TH 
Filesystem    Type     Size   Used  Avail Use% Mounted on 
/dev/sda3     ext3      11G   3.6G   6.1G  37% / 
/dev/sda8     ext3     5.4G   146M   5.0G   3% /u03 
/dev/sda7     ext3     2.1G   125M   1.9G   7% /tmp 
/dev/sda5     ext3     6.1G   147M   5.7G   3% /u02 
/dev/sda2     ext3      16G   174M    15G   2% /u01 
/dev/sda1     ext3     152M    12M   132M   9% /boot 
tmpfs        tmpfs     1.1G      0   1.1G   0% /dev/shm 
/dev/hdc   iso9660     3.1G   3.1G      0 100% /media/Enterprise Linux dvd 20100405 
.host:/     vmhgfs     105G    52G    54G  49% /mnt/hgfs

Thanks all;

And the VERY FIRST HIT in Google for "how to increase swap space in linux" is:
http://www.thegeekstuff.com/2010/08/...dd-swap-space/

..a complete explanation, with examples, of both methods. Did you even try to look this up first???