IBM ATA Deskstars *without* tagged queueing?

Bruce M Simpson bms at spc.org
Thu Sep 26 11:21:02 BST 2002


Guys,

I bought a Deskstar 120GXP that *doesn't* appear to do tagged queueing. I
was wondering if anyone else had encountered such a thing. It's somewhat
annoying; generally I buy IBM drives for precisely the reason that they're
meant to support tagging.

The device model ID is IC35L040AVVN07-0. There's more information about
these OEM drives here:
http://www.digit-life.com/articles/digests/hddreview-0602-ibm.html

The kernel reports it as (note no 'tagging' keyword):-
atapci0: <Intel ICH ATA66 controller> port 0xf000-0xf00f at device 31.1 on pci0
ad0: 39266MB <IC35L040AVVN07-0> [79780/16/63] at ata0-master UDMA66

I'd expect the UDMA66 as the drive is UDMA100 capable, but the board is
i810 ICH, not ICH0/ICH2.

uname -a:
FreeBSD sulaco.dollah.com 4.7-RC FreeBSD 4.7-RC #0: Wed Sep 25 18:57:20 BST 2002     bms at sulaco.dollah.com:/usr/src/sys/compile/SULACO  i386

Any ideas?
BMS




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