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Re: Advanced Format disks mixed with regular disks?

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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


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