Set The Drive's Scsi Id; Inserting The Tape Drive - Freecom USB DAT-72I User Manual

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Figure 16 Inserting the tape drive

If there are empty bays, insert a blanking plate. This is essential to ensure adequate airﬂow is

maintained. Failure to do so may affect tape drive performance.

Set the drive's SCSI ID

To set the tape drive's SCSI ID you need to set the appropriate switch on the rear of the tape array. The

number of address switches corresponds to the number of tape drives that can be inserted into the

tape array.

Each device on the SCSI bus must have a unique SCSI ID.

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For HP ProLiant servers where the tape drive is connected to the built-in SCSI bus, we recommend

that the tape drive is assigned a SCSI ID between 1 and 6.

For all other servers and when used with separate HBAs, it can be assigned any unused ID

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between 0 and 15. Do not use SCSI ID 7, which is reserved for the SCSI controller. SCSI ID 0

is typically assigned to the boot disk and should also not be used unless the tape drive is on a

dedicated SCSI bus.

Typically, the HP Tape Array may hold up to four tape drives where each drive is attached to a separate

server. Under this conﬁguration, the SCSI IDs of each tape drive will not conﬂict with each other as

they are each installed onto a separate SCSI bus.

However, if you daisy-chain devices make sure that the devices are of the same SCSI type and that each

device on the same SCSI bus has a unique SCSI ID. Do not daisy-chain more than two devices on the

same SCSI bus and make sure that the end device is terminated.

Decide which SCSI ID to use.

For many operating systems you can install HP Library & Tape Tools from the HP StorageWorks Tape

CD-ROM and run the "Install Check" to check your computer's current SCSI conﬁguration (see

"Diagnostic

in use. The UNIX Conﬁguration Guide on the HP StorageWorks Tape CD-ROM, also provides

instructions on how to determine the SCSI IDs of existing devices.

Set the appropriate switch. Figure 5 shows the address switch on the back panel of the HP Tape

Array 5300.

tools" on page 55). This will provide information about the SCSI bus and the SCSI IDs

DAT SCSI Tape Drives

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