[gentoo-user] need more swap

[gentoo-user] need more swap

[Bill Kenworthy]

I have a one-off number crunching job that needs a large amount of swap.
It is apparently possible to have up to 16TB of swap with an AMD opteron
but I cant find out how - anyone here done this?

I have a 125GB scssi disk I would like as one large swap but after setup
the kernel can only see 2G (normal i386 is up to 32 2G partitions - I
found that 5G ram and 12G swap wasnt enough so I now want more! :)

BillK

Re: [gentoo-user] need more swap

[Bill Kenworthy]

ah, figured it out - had to be the whole disk, not a partition.

BillK


On Mon, 2010-05-17 at 08:48 +0800, Bill Kenworthy wrote:
> I have a one-off number crunching job that needs a large amount of swap.
> It is apparently possible to have up to 16TB of swap with an AMD opteron
> but I cant find out how - anyone here done this?
> 
> I have a 125GB scssi disk I would like as one large swap but after setup
> the kernel can only see 2G (normal i386 is up to 32 2G partitions - I
> found that 5G ram and 12G swap wasnt enough so I now want more! :)
> 
> BillK
> 
> 
> 
> 

Re: [gentoo-user] need more swap

[Mick]

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On Monday 17 May 2010 01:55:23 Bill Kenworthy wrote:
> ah, figured it out - had to be the whole disk, not a partition.

As far as I know you can define a partition, or even a file as swap space.  
You'll need to set a swap fs on them first before you can use them and then it 
is a matter of swapon /dev/what_ever.

-- 
Regards,
Mick

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