Re: Are WDC AC33100H & AC31600H DMA-safe?

Kyle Rose (krose@theory.lcs.mit.edu)
Fri, 22 Jan 1999 03:28:57 -0500


"Andre M. Hedrick" wrote:

> www.wdc.com/quality/err-rec.html
>
> See if it does or doesn't here.
>
> If it does pass the requirements, then please send me a copy of the
> firmware revisions that hdparm reports, and ditto if they fail.

I have been having the same problem with a AC32500. My hdparm -i is as follows:

--
 Model=WDC AC32500H, FwRev=24.09P07, SerialNo=WD-WT334
 Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
 RawCHS=4960/16/63, TrkSize=57600, SectSize=600, ECCbytes=22
 BuffType=3(DualPortCache), BuffSize=128kB, MaxMultSect=16, MultSect=off
 DblWordIO=no, maxPIO=2(fast), DMA=yes, maxDMA=0(slow)
 CurCHS=620/128/63, CurSects=4999680, LBA=yes, LBAsects=4999680
 tDMA={min:120,rec:120}, DMA modes: mword0 mword1 *mword2
 IORDY=on/off, tPIO={min:160,w/IORDY:120}, PIO modes: mode3 mode4
--

(DMA is listed as "yes" because I turned it on using hdparm after determining that it didn't need the firmware upgrade, as reported by the WD upgrade program you referenced.) I guess this is one you can add to your "good" list.

Thanks, Kyle

--
Kyle R. Rose                          "They can try to bind our arms,
Laboratory for Computer Science        but they cannot chain our
MIT NE43-309, 617-253-5883             minds or hearts..."
http://web.mit.edu/krr/www/                              Stratovarius
krose@theory.lcs.mit.edu                                 Forever Free

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