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2 SCSI adapters in w2k server problem?

By DaveM ·
Have a w2k server with a hard drive running off of an adaptec scsi controller. Went to add a tape backup drive (WangDAT 4mm DDS-3) and another adaptec scsi adapter.

During boot, each scsi adapter is "recognized" (by their own on-board bioses I guess), but once W2k is booted, the tape drive and adapter are nowhere to be found, nor can they be "added" as hardware.

Do I need to disable the bios on the second adapter?

TIA

Dave Moffatt

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by djent In reply to 2 SCSI adapters in w2k se ...

Sounds like a PCI sharing or bus mastering conflict, try other slots. The BIOS wont load if the controller has no bootable device connected. Why a second controller, are all 15 IDs in use? Unless you have many HDs using the first controller there is no reason not to use it for the tape also, the controller will do concurent access to all devices unlike IDE controllers. The only issue may be bandwidth saturation and diminished performance.

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by DaveM In reply to

Finally figured this out myself. Had to use another host adapter because the tape drive came with it and it was not same SCSI format as the HDs. Also this was an ISA adapter not PCI. I disabled the onboard bios on this adapter, then noted the resource assignments (IRQ, etc.). During add hardware wizard in W2k, i specified all the resource assignment, and the system recognized the drive.

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by DaveM In reply to 2 SCSI adapters in w2k se ...

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