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Archive for April, 2010

WesternDigital WD10TPVT – Advanced Format

April 3, 2010 4 comments

These are details from the WD10TPVT, a 2.5” 1TB (12.5mm) SATA drive from Western Digital.

It’s the Advanced Format (4096-byte physical sectors) version of their WD10TEVT disk, though with it’s current firmware you might not know it except for the small warning label on the top sticker of the drive itself.

This label suggests every OS other than Windows XP will work with this drive without any special adjustments, but I’d like to know if this is really true, or if there is a tangible performance impact of using this drive with a default partition layout on other operating systems, notably Linux.

Tejun Heo (of LKML fame) posted a very informative wiki article about the 4kb sector issue here : https://ata.wiki.kernel.org/index.php/ATA_4_KiB_sector_issues

SMART details :

Device Model:     WDC  WD10TPVT-00HT5T0
Serial Number:    W  -DXW151CU0xxxx
Firmware Version: 01.01A01
User Capacity:     1,000,204,886,016 bytes

Linux detection :

scsi 6:0:0:0:  Direct-Access     WDC      WD10TPVT-00HT5T0 01.0 PQ: 0 ANSI: 3
sd 6:0:0:0: [sdd]  1953525168 512-byte hardware sectors: (1.00  TB/931 GiB)
sd 6:0:0:0: [sdd] Write  Protect is off
sd 6:0:0:0: [sdd] Mode  Sense: 23 00 10 00
sd 6:0:0:0: [sdd] Write  cache: enabled, read cache: enabled, supports DPO and FUA

Oddly, WD seem to have purposefully made the drive advertise itself as having only 512-byte sectors, surely this is going to cause confusion with software trying to correctly identify and partition these 4096-byte sectored Advanced Format disks?

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