Server is Unable to Recognize the 3 Devices on SCSI channel 1

[Sal Mistretta]

On bootup the server recognizes all five devices spanning the SCSI channels. The host adapter is an Adaptec 39160 dual channel card, using the adpt160m.ham driver.

Below is what I get on boot up which is correct.

ID0: 0 SDX-500C tape device
ID1: 1 SDX-500C tape device
ID6: 6 Scalar 1000 tape library arm
ID2: 2 SDX-500C tape device
ID3: 3 SDX-500C tape device

After the OS boots up, I am unable to see the 1st three devices. ID's 0, 1, 6. I invoke a list devices command out in the NetWare 5.0 console and only see the two tape drives on SCSI channel 2. ID's 2 and 3.

I've tried a different SCSI cable and did experiment with different IRQ levels.

This same exact setup did work fine on another file server. I was able to install the backup software and perform backup tests. The only difference is that the 39160 SCSI card was plugged into slot 5 on the working server and is plugged into slot 4 on the current non-working server.

I am unable to get that far with this server because of the devices that are not being recognized.

The OS is NetWare 5.0 using Arcserve 7 for NetWare. The server is an Proliant ML 370 G2.

Any ideas anyone?

Thanks,
...Sal

[Randy Weis]

The changer/arm should always be the lowest ID. On all of my libraries, a 9326d, a 9595s2, and 3 msl5000s, the scsi id of the arm is 0. That is Storageworks' recommendation.

[Sal Mistretta]

Randy,

The arm is an ADIC Scalar 1000 not a Storageworks unit. ADIC recommends that this particular library be set for ID6 in the SCSI chain.

I have resolved the problem. I changed the host adapter card into another slot. Deleted the ham driver and re-installed within the OS. Hard booted both devices to ensure connectivity. Thanks for your input.