zfs on 4k sector disks

[Bucarr]

I was wondering that as well.  So I set up a new FreeBSD8.0 box with a UFS2
disk as my boot disk and two WD 2TB EARS drives ("Advanced Format") for a
zfs data array.  I made no attempt to alter the WD drives in any way and
ignored the 512b vs 4096b issues.  'zpool create tank raidz da0 da1' set up
the array in a few seconds and I've copied to/from with no troubles and no
apparent performance issues that I care about.  If I had more of the WD
drives lying around, I'd add those to the array and see what gives then.

HTH,

Bucky


mailinglists-19 wrote:
> 
> Hello,
> 
> I've got 3 1.5TB drives that are using the "Advanced Format" from 
> Western Digital, see the link for details:
> http://www.wdc.com/wdproducts/library/WhitePapers/ENG/2579-771430.pdf
> This "Advanced Format" basically means the sectors size on disk is 
> changed to 4k in stead of 512k.
> 
> I'm wondering if freeBSD 8.0 using ZFS raidz and drives like these will 
> work properly, I've seen a lot of articles and postings about partitions 
> not being properly aligned with the physical disk layout and suffering 
> big performance hits. My question is; should I worry about these issues 
> or does ZFS already align the data on a 4k border?
> 
> My setup would be 3 * 1.5TB WD drives (WD15EARS) using the whole drive 
> for a raidz pool.
> 
> Thanks,
> Rob Evers
> ***deze e-mail is gescand door Onlinespamfilter.nl***
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