Re: impact of unaligned partitions/slices on 4kB sector drives (wd10ears)

2011-05-14 Thread Abel Abraham Camarillo Ojeda
List: openbsd-tech Subject:impact of unaligned partitions/slices on 4kB sector drives (wd10ears) From: Robert robert () openbsd ! pap ! st Date: 2010-01-06 22:54:34 Message-ID: 20100106235434.55963d32 () openbsd ! pap ! st Hello, i did some measurements on the impact

Re: impact of unaligned partitions/slices on 4kB sector drives (wd10ears)

2011-05-14 Thread Otto Moerbeek
On Sat, May 14, 2011 at 03:43:23AM -0500, Abel Abraham Camarillo Ojeda wrote: (( If you read this far, have a cookie and wonder with me about that quick extraction... The system this drive is in has the same board, but everything else is slower and not idle when meassured...))

Re: impact of unaligned partitions/slices on 4kB sector drives (wd10ears)

2011-05-14 Thread David Gwynne
On 14/05/2011, at 6:43 PM, Abel Abraham Camarillo Ojeda wrote: I'm starting to get angry about the _horrible_ performance on this drive (WD10EARS-00Y), some developer ever got a chance to see something about this? don't get angry, it's just a disk. we changed the default alignment of

Re: impact of unaligned partitions/slices on 4kB sector drives (wd10ears)

2011-05-14 Thread Abel Abraham Camarillo Ojeda
On Sat, May 14, 2011 at 4:08 AM, David Gwynne l...@animata.net wrote: i have had a look at querying disks for their physical and logical block alignments and offsets, but the the WD??EARS-00? drives dont report this info. according to western digital, the next generation of these drives

Re: impact of unaligned partitions/slices on 4kB sector drives (wd10ears)

2011-05-14 Thread Otto Moerbeek
On Sat, May 14, 2011 at 04:15:51AM -0500, Abel Abraham Camarillo Ojeda wrote: On Sat, May 14, 2011 at 4:08 AM, David Gwynne l...@animata.net wrote: i have had a look at querying disks for their physical and logical block alignments and offsets, but the the WD??EARS-00? drives dont report

Re: impact of unaligned partitions/slices on 4kB sector drives (wd10ears)

2011-05-14 Thread Abel Abraham Camarillo Ojeda
On Sat, May 14, 2011 at 4:22 AM, Otto Moerbeek o...@drijf.net wrote: On Sat, May 14, 2011 at 04:15:51AM -0500, Abel Abraham Camarillo Ojeda wrote: On Sat, May 14, 2011 at 4:08 AM, David Gwynne l...@animata.net wrote: i have had a look at querying disks for their physical and logical block