From: Valtteri Kiviniemi <mailinglists@dataproof.fi>
Cc: xen-devel@lists.xensource.com
Subject: Re: Which disk backend to use in domU?
Date: Fri, 11 Jun 2010 20:42:28 +0300 [thread overview]
Message-ID: <4C127584.6070801@dataproof.fi> (raw)
In-Reply-To: <28857720.post@talk.nabble.com>
Hi,
I am also using phy: with LVM-partitions, and I also would like to know
if there is a better or more preferred way.
- Valtteri Kiviniemi
Neobiker kirjoitti:
> Hello Jeremy,
>
>
> Jeremy Fitzhardinge wrote:
>> Using phy: in your config file? That really isn't recommended because it
>> has poor integrity; the writes are buffered in dom0 so writes can be
>> reordered or lost on crash, and the guest filesystem can't maintain any
>> of its own integrity guarantees.
>>
>> tap:aio: is more resilient, since the writes go directly to the device
>> without buffering.
>
> Do you mean that using tap:aio with a disk.image is prefered against using
> phy: with LVM-device?
>
> Best Regards
> Jens Friedrich aka Neobiker (www.neobiker.de)
next prev parent reply other threads:[~2010-06-11 17:42 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-09 21:02 Xen pv_ops dom0 2.6.32.13 issues greno
2010-06-09 22:37 ` Jeremy Fitzhardinge
2010-06-09 23:27 ` greno
2010-06-09 23:37 ` Jeremy Fitzhardinge
2010-06-11 17:06 ` Which disk backend to use in domU? Neobiker
2010-06-11 17:42 ` Valtteri Kiviniemi [this message]
2010-06-11 17:53 ` Valtteri Kiviniemi
2010-06-11 18:11 ` Neobiker
2010-06-14 10:49 ` Jeremy Fitzhardinge
2010-06-14 10:57 ` Daniel Stodden
2010-06-14 11:01 ` Pasi Kärkkäinen
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