From: Les Mikesell <lesmikesell@gmail.com>
To: linux-lvm@redhat.com
Subject: Re: [linux-lvm] Advanced Format disks mixed with regular disks?
Date: Mon, 14 Mar 2011 12:32:52 -0500 [thread overview]
Message-ID: <4D7E5144.7060200@gmail.com> (raw)
In-Reply-To: <20110314171726.GA18249@redhat.com>
On 3/14/2011 12:17 PM, Mike Snitzer wrote:
>
>> Is there any concern with mixing 4KB-sector drives with 512-byte
>> sector drives in the same LV?
>
> Both LVM2 and Device Mapper have been updated to accommodate stacking
> such a mix of drives.
>
> See this for a bit more detail:
> http://people.redhat.com/msnitzer/docs/io-limits.txt
>
> Particularly, the "Stacking I/O Limits" section.
>
> The concern raised for partial (4k) writes to the 512b drive was
> discussed a bit more here: http://lkml.org/lkml/2010/2/22/295
Are there any version-level hints about when/where these changes appear
and come together in the real world (i.e. distributions like RHEL,
debian, Ubuntu)?
--
Les Mikesell
lesmikesell@gmail.com
next prev parent reply other threads:[~2011-03-14 17:33 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-14 16:47 [linux-lvm] Advanced Format disks mixed with regular disks? Ron Johnson
2011-03-14 17:17 ` Mike Snitzer
2011-03-14 17:32 ` Les Mikesell [this message]
2011-03-14 18:02 ` Mike Snitzer
2011-03-14 18:09 ` Ron Johnson
2011-03-14 19:13 ` Ron Johnson
2011-03-14 20:00 ` Mike Snitzer
2011-03-15 8:02 ` Karel Zak
2011-03-15 14:24 ` Stuart D. Gathman
2011-03-15 17:36 ` Stuart D. Gathman
2011-03-15 0:15 ` John Drescher
2011-03-16 20:45 ` Phillip Susi
2011-03-16 22:55 ` Mike Snitzer
2011-03-16 23:11 ` Les Mikesell
2011-03-17 0:02 ` Mike Snitzer
2011-03-17 0:18 ` Mike Snitzer
2011-03-17 0:12 ` Phillip Susi
2011-03-17 0:39 ` Martin K. Petersen
2011-03-17 14:21 ` hansbkk
2011-03-17 23:47 ` Ron Johnson
2011-03-22 10:23 ` Karel Zak
2011-03-22 16:51 ` Les Mikesell
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