Re: DMA on Friday night server

I do have an ATA 100 card lying around and not doing anything. I believe
its a Promise that came w/ a hard drive a while back. I'll see if I
can't remember it tonight.

On Thu, 2005-07-07 at 21:20 -0800, Greg Madden wrote:
> On Thursday 07 July 2005 08:04 pm, Damien Hull wrote:
> > Damien Hull wrote:
> > >I think I have DMA working on the Friday night server.
> > >
> > > hdparm -Tt /dev/hdb
> > >
> > > /dev/hdb:
> > > Timing cached reads: 348 MB in 2.00 seconds = 173.68 MB/sec
> > > Timing buffered disk reads: 64 MB in 3.09 seconds = 20.72
> > > MB/sec [root@testb ~]# hdparm -v /dev/hdb
> > >
> > > /dev/hdb:
> > > multcount = 16 (on)
> > > IO_support = 0 (default 16-bit)
> > > unmaskirq = 0 (off)
> > > using_dma = 1 (on)
> > > keepsettings = 0 (off)
> > > readonly = 0 (off)
> > > readahead = 256 (on)
> > > geometry = 65535/16/63, sectors = 81964302336, start = 0
> > > [root@testb ~]#
> > >
> > >"hdb" is where all the data is.
> > >
> > >---------
> > >To unsubscribe, send email to <aklug-request@aklug.org>
> > >with 'unsubscribe' in the message body.
> >
> > Here's more info.
> >
> > hdparm -i /dev/hdb
> >
> > /dev/hdb:
> >
> > Model=Maxtor 6Y080L0, FwRev=YAR41BW0, SerialNo=Y2MP82KE
> > Config={ Fixed }
> > RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57
> > BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16,
> > MultSect=16 CurCHS=16383/16/63, CurSects=16514064, LBA=yes,
> > LBAsects=160086528 IORDY=on/off, tPIO={min:120,w/IORDY:120},
> > tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4
> > DMA modes: mdma0 mdma1 mdma2
> > UDMA modes: udma0 udma1 *udma2 udma3 udma4 udma5 udma6
> > AdvancedPM=yes: disabled (255) WriteCache=enabled
> > Drive conforms to: (null):
> >
> > * signifies the current active mode
> >
> > [root@testb ~]# hdparm -i /dev/hda
> >
> > /dev/hda:
> >
> > Model=Maxtor 83240D3, FwRev=NAVX171F, SerialNo=L326XNPA
> > Config={ Fixed }
> > RawCHS=6697/15/63, TrkSize=0, SectSize=0, ECCbytes=20
> > BuffType=DualPortCache, BuffSize=256kB, MaxMultSect=16,
> > MultSect=16 CurCHS=6697/15/63, CurSects=6328665, LBA=yes,
> > LBAsects=6329388 IORDY=on/off,
> tPIO={min:120,w/IORDY:120},http://www.pcguide.com/ref/hdd/if/ide/modesUDMA-c.html
> > tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4
> > DMA modes: mdma0 mdma1 mdma2
> > UDMA modes: udma0 udma1 *udma2
> > AdvancedPM=no WriteCache=enabled
> > Drive conforms to: ATA/ATAPI-4 X3T13 1153D revision 7: 1 2 3
> >
> > * signifies the current active mode
> >
> >
> > If anyone thinks I need to make changes let me know.
> > ---------
> > To unsubscribe, send email to <aklug-request@aklug.org>
> > with 'unsubscribe' in the message body.
>
> http://www.pcguide.com/ref/hdd/if/ide/modesUDMA-c.html
>
> The good news is that DMA is working, the not so good news is it is
> operating in UDMA mode 2, 33MB/S, which is slow but depending on the
> age of the box may be all it is capable of. Any hd faster than UDMA
> mode 2 will require a 80 pin cable.
>

-- 
Jim Gribbin
Prudential Jack White/Vista RE
3801 Centerpoint Dr, #200
Anchorage, AK  99503
ph (907) 273-7348  fax (907) 562-5485
website http://www.JimGribbin.com
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