From Newsgroup: comp.sys.ibm.ps2.hardware

Q: Is the DAC960LB supported?

A: This is the model number of the battery backup shunt, not the
adapter itself. The D040 number (see above) can be used to
determine the actual controller model number.

Louis Ohland wrote:

https://www.infania.net/misc/psref/scwbook.pdf

Page 3

-aSCSI-2 Fast/Wide PCI RAID Adapter Savannah
Mylex / modification of DAC960P

Option
Adapter in PC Server 320 array
SCSI-2 Fast/Wide 16 bit / 20 MB/sec
PCI 32 bit / 132 MB/sec

RAID 0, 1, Hybrid 1, 5
4 independent (A,B,C,D) / 8 logical arrays
i960 at 25 MHz
PCI standard
Two (one internal; one internal or external)
Three total:
Two internal - 16 bit wide
One external - 16 bit wide
Can only use two connectors at any one time
14 per adapter (7 max per channel)
4 MB / 4 MB (with parity) 70 ns
One 72 pin socket
Write-through or write-back
June 1995 / April 1997
1 year
$ 1,840
94G2764

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From Newsgroup: comp.sys.ibm.ps2.hardware

Everyone loves pictures of RAID controllers ...

https://www.franken-online.de/ymmv/pictures/ibmdac960p_a.jpeg https://www.franken-online.de/ymmv/pictures/ibmdac960p_b.jpeg https://www.franken-online.de/ymmv/pictures/ibmdac960p_c.jpeg

IBM DAC960 PCI, single flash ROM with version 2.43b IBM firmware.

I remember we discussed this topic at the beginning of the millennium.
It was reported that someone had flashed this controller with Mylex
firmware version 2.73 and gotten Debian running. https://groups.google.com/g/comp.sys.ibm.ps2.hardware/search?q=dac960p

Oh my god, that was a long time ago.

My interest in PCI is limited, though. If I were a PCI enthusiast, I'd
be tinkering with a different system.

With a bit of luck, I'll find a working Corvette and install it in the
Server 520. I want to know if it can stream at 40 MB/s (that's what the
520 manual says, anyway) or if the last BIOS update has slowed it down.


#Am 02.02.26 um 22:56 schrieb Louis Ohland:

Q:-a Is the DAC960LB supported?

A:-a This is the model number of the battery backup shunt, not the
-a-a-a adapter itself.-a The D040 number (see above) can be used to
-a-a-a determine the actual controller model number.

Louis Ohland wrote:

https://www.infania.net/misc/psref/scwbook.pdf

Page 3

-a-aSCSI-2 Fast/Wide PCI RAID Adapter Savannah
Mylex / modification of DAC960P

Option
Adapter in PC Server 320 array
SCSI-2 Fast/Wide 16 bit / 20 MB/sec
PCI 32 bit / 132 MB/sec

RAID 0, 1, Hybrid 1, 5
4 independent (A,B,C,D) / 8 logical arrays
i960 at 25 MHz
PCI standard
Two (one internal; one internal or external)
Three total:
Two internal - 16 bit wide
One external - 16 bit wide
Can only use two connectors at any one time
14 per adapter (7 max per channel)
4 MB / 4 MB (with parity) 70 ns
One 72 pin socket
Write-through or write-back
June 1995 / April 1997
1 year
$ 1,840
94G2764

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From Newsgroup: comp.sys.ibm.ps2.hardware

Am 06.02.26 um 20:25 schrieb Wolfgang Gehl:

Am 03.02.26 um 22:58 schrieb Wolfgang Gehl:
I found a Corvette Turbo (93H7896).

The LAD indicator on the spare 93H7896 flashes eight times, then stops,
and then the same thing happens again. This indicates an Internal SCSI Interface Test Failure. https://www.ardent-tool.com/IBM_SCSI/SCSI-FW.html#LED_Flash_Code

If my memory serves me correctly, I successfully tested the card in a
9595A. Too bad, it's probably broken.

I've now installed a 52G3380 from a running system. The microchannel
setup worked. Streaming is disabled by default, so I haven't changed
that yet.

The system boots and tries to load my IBMSCSI kernel. The attempt ends
with a kernel panic. Perhaps I should have selected CONFIG_EXPERIMENTAL
for this kernel.

Next time better luck.

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