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4K-sector drives and Linux4K-sector drives and LinuxPosted Mar 9, 2010 23:43 UTC (Tue) by pheldens (guest, #19366)Parent article: 4K-sector drives and Linux
I just got one of these drives, a 1TB WD10EARS, I intend to put it in soft raid 1 with a WD10EACS, are there caveats there? using stock linux 2.6.33.
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RAID: was 4K-sector drives and Linux Posted Mar 10, 2010 2:36 UTC (Wed) by smoogen (subscriber, #97) [Link]
My guess would be that you would see poor performance on the RAID-1 in the ways similar to having a 5400 RPM and and 10k RPM drive as the RAID-1 pair. or having 2 completely different disks (like in the old days of one disk saying it had 16 platters and another one saying it had 4.. IO to them is very different.) Ones always going to have different IO performance than the other so sometimes things would be fast and others really slow.
But that would be my guess. If its different let us know.
4K-sector drives and Linux Posted Mar 10, 2010 21:21 UTC (Wed) by pheldens (guest, #19366) [Link]
I did some tests with the EARS and the effect described in the article is very noticable.
Default fdisk misaligns the sdb1 data area (63)
Will see what happens when I put it in an array aligned
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