HP VS80 DLT VS80 Tape Drive User's Guide - Page 60

novell netware frequently asked questions http://www.hp.com/support/tape may have a later version hp learning products data protection drivers FAQs windows NT netware unix - SCO unix - linux frequently asked questions "How do I tell if my tape drive and drivers are correctly set up?" contents of this section related topics tape drive not recognised checking the cables checking the HBA driver how to get further information back to list of questions previous question next question This topic is available in English only tape drive not recognised There can be several reasons why a tape drive attached to the system is not recognised by backup software: 1. Cabling may be too long, too many devices connected, no bus termination, non-shielded internal cables being used for external applications, badly seated connectors, tape drive has same SCSI ID as another device, illegal bus configuration etc. 2. Tape Drive not switched on, or faulty. 3. HBA faulty. 4. HBA Driver not loaded, or incorrect driver loaded. 5. Tape Device driver or ASPI driver not loaded, or incorrect driver loaded. 6. Tape Device driver or Backup Application does not support tape drive. HP SureStore DAT and DLT drives have wide tape device driver and backup application connectivity - see the answer to the question "Which HP SureStore tape drives are certified by Novell, ISVs and IHVs for use on NetWare." for full details. In general, faulty tape drives and HBAs are rarely the cause of the problem, so all other possibilities should be checked first. checking the cables The simplest way to check that the cabling is not at fault is to look for the SCSI Inquiry string of the Tape Drive, which should be displayed by the SCSI HBA BIOS (of the HBA to which the drive is attached) when the system is booting. If the SCSI Inquiry string of the tape drive is seen at boot time, then it is unlikely that the problem is one of the first three listed above. However, this will not preclude any SCSI errors which arise from marginal cabling, and which generally show up during high-speed synchronous data transfer (when performing backups/restores). If the problem relates to an LVDS (Ultra 2 Wide - 68 pin) device sharing the SCSI bus with SE narrow (50 pin) devices, users must ensure that either the LVDS device is placed first on the bus, or the appropriate passthrough cables are used. Some systems will not display the SCSI Inquiry strings when booting. However all Adaptec and Symbios SCSI controllers with a BIOS should do this. checking the HBA driver In order to check that the HBA and Tape Drive drivers are installed and working correctly, access a screen listing of the devices attached to the system by entering the following commands at the console prompt: "SCAN FOR NEW DEVICES" "LIST DEVICES" If a list does not appear then the HBA driver is the likely cause of problems. However, if the HBA header appears (possibly with a list of other devices connected on the same bus), but the tape drive Inquiry String is not shown (remember there should be 2 LUNs shown for an Autoloader), then it is likely that the tape driver is not loaded correctly. Note that the command "SCAN FOR NEW DEVICES" can be used to force NetWare to find tape drives you have added to the system after NetWare has started up, or if you have just loaded a new HBA driver. how to get further information Consult the answer to the question "How do I know what drivers (DDFS or NWPA) I am using at the moment, and what drivers I need for running tape backups" to find out how to check that the correct HBA driver and Tape Device Driver (or ASPI driver) are loaded. In order to check that the Backup Application supports the tape drive, check with the ISV, or go to http://www.hp.com/go/connect. next question Go to the next question "Are there any important points I need to be aware of when changing drivers in my system"?" © 1999-2001, Hewlett-Packard Company file:///C|/Documents%20and%20Settings/topher.COL-SPRINGS/Desktop/dltvs80%20manual/document/common/drivers_faqs/eng/nw_q3.htm [11/29/2001 8:35:23 AM]