Matthias Schniedermeyer wrote:
> More than a month ago i bought 4 Western Digital WD15EARS (1.5 TB) which
> are (AFAIK) the first general/commercial available 4k sector SATA-HDDs.
> Unfortunatly the HDDs lie about the 4k physical sector size and the most
> prominent drawback is a worse than abysmal delete performance.
> ("Normal" Read & Write-performance is OK)
> So if i wanted to (re-)mkfs the filesystems what would the correct
> parameters be?
> Kernel/Userspace is pretty recent (Debian-SID):
> mkfs.xfs version 3.1.1, kernel v2.6.33, util-linux 2.16.0
> Not that that should matter when the HDDs lies.
Recent kernel+util-linux-ng++fdisk+parted+xfsprogs -should- do the right thing
Oh, but this was maybe the drive that didn't output the right stuff when
Make sure your partitions, if any, are on 4k boundaries.(*) older fdisk at
won't do this by default, not sure about parted.
once that is done, tell mkfs.xfs "-s size=4096" to set the 4k sector size
(again, all-upstream should do this magically for sane drives)
(*)unless the drive has an offset to make 512-sector 63 line up on a nice
boundary... in which case I guess you could experiment with perf both
ways to be sure...
> Bis denn