Re: [Vserver] vservers and unionfs

From: Herbert Poetzl <herbert_at_13thfloor.at>
Date: Thu 05 Jan 2006 - 16:20:51 GMT
Message-ID: <20060105162051.GB5450@MAIL.13thfloor.at>

On Wed, Jan 04, 2006 at 11:42:32PM +0200, Adrian Vasile wrote:
> Hi all,
>
> i'm just starting with the ideea of vserver and i was thinking if
> anyone could point me towards some info related to using (configuring)
> vserver with unionfs and maybe give some hardware requirements
> (memory, procs, space) needed to run a couple :)

the probably strange question is, why would you want
to use unionfs, when you can have unifiation, which
usually suits the linux-vserver guest setup much
more than some overlay filesystem?

typical advantages over unionfs:

 - less overhead for access and modification
 - reduced cache usage (hardlinks)
 - can be re-unified at any time
 - does not require patches or modules

HTH,
Herbert

> ps:
> webber ~ # uname -a
> Linux webber 2.6.14-vs2.0.1-gentootest1 #1 SMP Wed Jan 4 18:41:47 EET
> 2006 x86_64 Intel(R) Xeon(TM) CPU 3.20GHz GenuineIntel GNU/Linux
> with 400GB and 2GB ECC RAM, just finished building it
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