> I have these: > Model=WDC WD20EARS-00MVWB0, FwRev=50.0AB50, SerialNo=WD-WMAZ20035646 > Model=WDC WD20EARS-00MVWB0, FwRev=50.0AB50, SerialNo=WD-WMAZ20028252 > Any chance to get Linux know they are 4k sector drives manually? Your revision numbers are different than mine, because you have the 2TB drive, but i guess its the same for these too. You can try "hdparm -I /dev/sdX" (capital i) or "cat /sys/block/sdX/queue/hw_sector_size" to see what they report. Mine report "Logical/Physical Sector size: 512 bytes" There are newer revisions that report "Physical Sector size: 4096 bytes" Nevertheless, you don't have to get them to report 4k to linux. As long as you align the partitions its fine. As i said in the other post, newer fdisk doesn't use "DOS compatibility mode" and uses sectors by default (instead of stupid CHS) with a 1MB alignment, so every partition will be properly aligned. If you don't dual boot Windows, you can also use GPT partitioning scheme. Also, from what i have seen, xfsprogs are quite clever and find most stuff on their own. I usually mkfs with "-s size=4096" just to be sure. Slightly offtopic, there is another "problem" with these drives. They park the heads every 8 seconds, so they _might_ wear prematurely. You can change the 8sec timer or disable it with the wdidle3 utility from this url http://support.wdc.com/product/download.asp?groupid=609&sid=113&lang=en If you want to know more about the problem, there are many forums where you can read about wdidle3 and i also posted about it on my blog. http://lordkhelben.wordpress.com/2010/05/15/wd-caviar-green-hard-disks-idle-settings/ I hope i helped. _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
