Tape drive troubleshooting, Tape drive operation, For fai – Exabyte MAGNUM 1X7 LTO User Manual

Page 123

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O

CTOBER

2006

M

AGNUM

1

X

7 LTO A

UTOLOADER

107

T

APE

D

RIVE

T

ROUBLESHOOTING

If you are unable to resolve the problem, use LibTool to obtain a diagnostic

log from the autoloader immediately after the error is reported (see

page 102

). Alternatively, if your autoloader is equipped with the optional

Ethernet port, you can use FTP to obtain a diagnostic log from the

autoloader (see

page 100

). Exabyte Technical Support can examine the log

to determine the nature of the reported error.

Firmware level. Make sure that your autoloader and tape drive contain the

latest versions of firmware.



To check the autoloader’s code level, see

page 79

.



To check the tape drive’s code level, see

page 85

.



To determine whether you have the latest version of firmware, check the

Exabyte web site at

www.exabyte.com/downloads

.

T

APE

D

RIVE

T

ROUBLESHOOTING

T

APE

D

RIVE

O

PERATION

Refer to the tape drive product manual for detailed tape drive troubleshooting

information. If you have been successfully operating the application software

and autoloader in the past, but are now experiencing problems reading and

writing data, check the following:

Write-protect switch. If you are writing data, make sure that the cartridge is

write-enabled (see

page 63

).

Cartridge type. Use the appropriate cartridges for your tape drive. See

page 63

for information about selecting cartridges.

Cartridge age. If the cartridge has been in use for a long time or if it has been

used frequently, try using a new cartridge.

Cleaning. Clean the tape drive as described on

page 70

.

T

APE

DRIVE

FAILS

WITH

SPORADIC

ERRORS

.

Terminator. Check the terminator used on the tape drive.

Both LTO-2 and LTO-3 tape drives are Ultra 160 SCSI devices and require a

minimum Ultra 160 non-RAID SCSI card, Ultra 160 rated cabling, and an

Ultra 160 Active terminator. Cabling and termination rated higher (Ultra

320, for example) is also acceptable.

!

! !

!

Important

Both LTO-2 and LTO-3 tape drives require an Ultra 3 or

LVD 160 terminator to function properly on the SCSI bus. An

inadequate terminator will result in various, sporadic SCSI bus

issues, including bus hangs and Read/Write failures.

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