RE: SWAP file on a RAID-10 array possible?

["Daniel Korstad" <dan@korstad.net>]

I used this site to bring my existing Linux install to a RAID 1.   It worked great for me.
 
http://wiki.clug.org.za/wiki/RAID-1_in_a_hurry_with_grub_and_mdadm
 
 
 
----- Original Message -----
From: linux-raid-owner@vger.kernel.org on behalf of Tomas France 
Sent: Wed, 8/15/2007 5:28am
To: linux-raid@vger.kernel.org
Subject: Re: SWAP file on a RAID-10 array possible? 
 
 
Thanks for the answer, David!

I kind of think RAID-10 is a very good choice for a swap file. For now I 
will need to setup the swap file on a simple RAID-1 array anyway, I just 
need to be prepared when it's time to add more disks and transform the whole 
thing into RAID-10... which will be big fun anyway, for sure ;)

By the way, does anyone know if there is a comprehensive how-to on software 
RAID with mdadm available somewhere? I mean a website where I could get 
answers to questions like "How to convert your system from no RAID to 
RAID-1, from RAID-1 to RAID-5/10, how to setup LILO/GRUB to boot from a 
RAID-1 array" etc. Don't take me wrong, I have "done my homework" and found 
a lot of info on the topic but a lot of it is several years old and many 
things have changed since then. And it's quite scattered too..

Tomas


----- Original Message ----- 
From: "David Greaves" <david@dgreaves.com>
To: "Tomas France" <tomfra@centrum.cz>
Cc: <linux-raid@vger.kernel.org>
Sent: Wednesday, August 15, 2007 12:10 PM
Subject: Re: SWAP file on a RAID-10 array possible?


> Tomas France wrote:
>> Hi everyone,
>>
>> I apologize for asking such a fundamental question on the Linux-RAID list 
>> but the answers I found elsewhere have been contradicting one another.
>>
>> So, is it possible to have a swap file on a RAID-10 array?
> yes.
>
> mkswap /dev/md<X>
> swapon /dev/md<X>
>
> Should you use RAID-10 for swap? That's philosophy :)
>
> David
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