Re: Getting more from the Sun4M ???
On Mon, 16 Jul 2001, Ben Collins wrote:
> > On Mon, 16 Jul 2001, Ken Seefried wrote:
> >
> > > Guenter Millahn writes:
> > > >
> > > > 1) Is it possible to run the SCSI connection with a higher speed?
> > >
> > > There are SBus cards that can run faster. I've got an SBus FWD SCSI drive
> > > that makes a different.
> > >
> > > Ken Seefried, CISSP
> >
> >
> >
> > Sorry, Ken, for my unclear request: I wanted to know, if it is possible
> > to use this old HW with 10 MBytes/sec both on SCSI controller and disk,
> > e.g. by using a better SCSI driver in kernel.
>
> A "better SCSI driver" cannot overcome the limitations of the hardware.
>
> Ben
Agree. But both Controller and Disk are Fast-SCSI (aka 10 MByte/s) capable.
But the kernel messages tell me that it runs on 5 MHz. On S/E SCSI this is
means IMO 8 data bits * 5 MHz = 5 MByte/sec.
Is it possible to use the full 10 MByte/sec bandwidth???
Greetings, Guenter
md driver 0.36.6 MAX_MD_DEV=4, MAX_REAL=8
esp0: IRQ 36 SCSI ID 7 Clk 40MHz CCF=8 TOut 167 NCR53C9XF(espfast)
ESP: Total of 1 ESP hosts found, 1 actually in use.
scsi0 : Sparc ESP100A-FAST
scsi : 1 host.
Vendor: SEAGATE Model: ST1480 SUN0424 Rev: 8628
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 3, lun 0
scsi : detected 1 SCSI disk total.
esp0: target 3 [period 200ns offset 15 5.00MHz synchronous SCSI]
SCSI device sda: hdwr sector= 512 bytes. Sectors= 843284 [411 MB] [0.4 GB]
sunlance.c:v1.12 11/Mar/99 Miguel de Icaza (miguel@nuclecu.unam.mx)
eth0: LANCE 08:00:20:18:c7:07
eth0: using auto-carrier-detection.
Other Question: Supports the Lance ethernet chip (AMD 7990) full duplex
10 Mbit/s ethernet? Thanks.
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