increasing swap space in SUSE Enterprise Server 10
 

Hi,
I’m a newbie to Linux and this forum. I’m trying to install Oracle 10g Enterprise Database on SUSE Linux Enterprise Server 10. Oracle requires swap space on the linux machine to be twice the size of RAM. I’ve got 586000 kB RAM and only 516 000 kB of swap space. How can I increase the size of swap space?

Thank you in advance for any suggestions.

Sergei Z

Hi, welcome to LQ and the wonderful world of Linux :}


If re-partitioning is not an option you can create a swap
file (which has a little performance penalty compared to
a partition). If you haven't done too much work on the
machine yet I'd highly recommend to re-install and repartition.



Cheers,
Tink

Also, you can have multiple swap partitions and use all of them. You can mix swap partitions and files. (I think, never tried it, but why not?)

thank you very muach for quick replay. Can you also explain to what exact values I neeed to use for dd's parameters

count=
bs=

to increase swap space to 1Gb. Now I have ~ 580 Mb. I understand that *bs* is a size of I/O block in bytes, and *count* is the # of the input blocks to copy [whatever it means]. Should I simply use the ones u provided in your code snippet?: 1024 and 600000 [~ 600 Mb?]. Does the swap space is simply being added to what I already have?

Thanks again for your help.

That's indeed how it works. You can add more if more is needed.
Of course performance would deteriorate at some stage.


Cheers,
Tink

got it. thanx. I actually work with pre-made Virtual Machine (vmware.com) that has SLES 10 as guest OS. I run it on XR Pro [host system]. I'll look to see if swap space can be increased by means of Virtual Tools from VMWare side [as RAM can be], thou I doubt it.

Cheers