> -----Original Message-----
> From: Kay Salzwedel [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, August 08, 2000 5:46 AM
> To: [EMAIL PROTECTED]
> Subject: disc drive cache
> 
> Hello,
> 
> does anybody know how to find out about the size of a (EIDE) drives
> cache if the company 'lost' the data sheet?

Well, you can find it from dmesg, just grep for hd? (for whatever IDE device
you're looking for).  Mine reports:

PIIX4: IDE controller on PCI bus 00 dev 39
PIIX4: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:pio, hdd:pio
hda: FUJITSU MPD3130AT, ATA DISK drive
hdb: Hewlett-Packard CD-Writer Plus 7500, ATAPI CDROM drive
hdc: IOMEGA ZIP 100 ATAPI, ATAPI FLOPPY drive
hdd: CD-532E, ATAPI CDROM drive

You should also be able to get this from hdparm -i /dev/hd? (as above).
Again, here is the report from my workstation:

/dev/hda:

 Model=FUJITSU MPD3130AT, FwRev=DD-04-47, SerialNo=01009599
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 BuffType=0(?), BuffSize=512kB, MaxMultSect=16, MultSect=off
 DblWordIO=no, OldPIO=2, DMA=yes, OldDMA=0
 CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=25431840
 tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2 
 IORDY=yes, tPIO={min:120,w/IORDY:120}, PIO modes: mode3 mode4 
 UDMA modes: mode0 mode1 *mode2 

Look for BuffSize in there, that's the cache size.  HTH,
        Greg

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