Messages in this thread | | | Date | Thu, 12 Aug 1999 03:58:51 +0100 | From | Jonathan Masters <> | Subject | Re: hdd & sound |
| |
OK. Here's the info on my hdds. The older primary uses (according to the bootup messages) UDMA 2. The newer one which won't use dma under Linux claims to use UDMA 4 at boot up (by boot messages I mean the ones from the bios *not* the kernel).
OK. Here's the output of hdparm -iv for the drives:
6.4Gb PRIMARY - USES UDMA successfully:
[root@periscope mastersj]# hdparm -iv /dev/hda
/dev/hda: multcount = 0 (off) I/O support = 1 (32-bit) unmaskirq = 0 (off) using_dma = 1 (on) keepsettings = 1 (on) nowerr = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 788/255/63, sectors = 12672450, start = 0
Model=FUJITSU MPC3064AT, FwRev=6801, SerialNo=01015248 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs } RawCHS=13410/15/63, TrkSize=0, SectSize=0, ECCbytes=4 BuffType=0(?), BuffSize=256kB, MaxMultSect=16, MultSect=off DblWordIO=no, maxPIO=2(fast), DMA=yes, maxDMA=0(slow) CurCHS=788/255/63, CurSects=1572995265, LBA=yes, LBAsects=12672450 tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2 IORDY=yes, tPIO={min:240,w/IORDY:120}, PIO modes: mode3 mode4
10.8Gb SECONDARY WON'T USE UDMA UNDER LINUX (fails with resets and lots of errors):
[root@periscope mastersj]# hdparm -iv /dev/hdb
/dev/hdb: multcount = 0 (off) I/O support = 1 (32-bit) unmaskirq = 0 (off) using_dma = 0 (off) keepsettings = 1 (on) nowerr = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 1313/255/63, sectors = 21095424, start = 0
Model=FUJITSU MPD3108AT, FwRev=DD-03-44, SerialNo=01029114 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs } RawCHS=20928/16/63, TrkSize=0, SectSize=0, ECCbytes=4 BuffType=0(?), BuffSize=512kB, MaxMultSect=16, MultSect=off DblWordIO=no, maxPIO=2(fast), DMA=yes, maxDMA=0(slow) CurCHS=1313/255/63, CurSects=-469761727, LBA=yes, LBAsects=21095424 tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2 IORDY=yes, tPIO={min:120,w/IORDY:120}, PIO modes: mode3 mode4
The SMART STATUS of both devices indicates that they are functioning "perfectly" (or at least aren't going to fail anytime "soon").
Thanx guys, BIG JM.
Mark Hahn wrote:
> > As far as I am aware they are in Bus master mode. The machine was built by myself > > hdparm -iv /dev/hd* > > > and is less than 1 year old (PII 400 Mhz 128Mb RAM, 256 MbSWAP (128Mb on each of > > the two hdds). I did not adjust this setting so I assume that it is using Bus > > mastering mode which is normal on all modern machines. > > modern machines do _not_ necessarily autoconfigure themselves optimally.
-- Jonathan C. Masters (jonathan@oxlug.org) PGP: www.brookes.ac.uk/~95227860/KEY
"Upon this rock I will build my church, and the gates of hell shall not prevail against it".
-- Matthew 16, 17-18
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |