Scsi and CD Array. Not experienced enough to figure it out....

Friday

Member
Sep 28, 2002
53
0
0
Using an adaptec AH2940 (I think) scsi controller and a seperate box/tower that holds 5 CD-Rom drives, I am getting some weird errors while trying to read the CDs.

Each CD drive has a green LED and an amber LED on them. After a reboot of the CD tower and the server, the two drives with CD's have their green lights turn on and the other three drives without CDs in them stay orange. A few minutes in, all of the drives turn orange, and during a file copy from CD rom to hard drive, the transfer of files times out. A few seconds later, the drives with CDs in them turn back to green and stay that way for a few minutes and, in unison, all the drives turn back orange.

I dont know when this problem started, but things used to work fine not long ago, early as last week. Someone rebooted the server last Friday, and I don't know if that had anything to do with it.

On the back of the CD tower, the scsi cable is plugged in. Below that, another scsi connecter has nothing plugged into it. If my knowledge of scsi is right, shouldn't there also be a scsi terminator plugged into that? Or does the scsi tower provide it's own termination?

Please help, growing frustrated in Michigan.
 

ProviaFan

Lifer
Mar 17, 2001
14,993
1
0
The last CD-ROM could have self termination set (some SCSI devices provide this, others do not). Or, somebody could have decided that they needed a SCSI terminator for something else and swiped it. Also, check your Error Log (if you're using Windows 2000 Server), or the output of dmesg | less to see if there are any errors from the SCSI driver to indicate a hardware problem with the adapter or drives.
 

zephyrprime

Diamond Member
Feb 18, 2001
7,512
2
81
Yeah, try a terminator. Also, what are you using your cd-rom array for? You might be better served by a virtual cd drive array.