RE: Mirroring swap

["Corey McGuire" <coreyfro@coreyfro.com>]

Personally, I think that if a system is so vital that it can't afford a
swap failure, then fill it full of RAM.  One can populate a 32bit system to
the max (4GB's) with quality RAM for less than a grand (less than $500 if
you buy real cheap stuff)

I don't know about Linux, but I know in Windows, swap is only vital because
M$ is too lazy to change their code.  Even in windows XP you need swap.
You can turn off "virtual memmory" but swap is just moved to ram (that's
right, real memory pretending to be fake memory pretending to be real
memory)

In Linux, is there a reason for using swap if you can afford the RAM?

*********** REPLY SEPARATOR  ***********

On 6/26/2003 at 2:23 PM Gregory Leblanc wrote:

>On Thu, 2003-06-26 at 01:30, Gordon Henderson wrote:
>[snip]
>> So now with important machines which had mirrored or RAIDed disk
systems,
>> I always put swap on a mirrored or RAID5d device.
>
>Swap on RAID 5 is going to have pretty poor performance, in general. 
>Swap needs to be both high bandwidth and low latency, both for reading
>and writing.  RAID 5 just isn't that.
>	Greg.
>
>
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