Exabyte MAGNUM 1X7 LTO 用户手册

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页码 162
108
P
RODUCT
 M
ANUAL
 
1012581
C
HAPTER
 8—T
ROUBLESHOOTING
If you install either an LTO-2 or LTO-3 tape drive in the autoloader, you 
must connect the correct terminator to avoid the above issues. The 
terminator must be a high-quality active LVD terminator that complies with 
the SCSI-3 specification. An appropriate terminator will be stamped with 
Ultra 3 or LVD 160, as well as “Active Negation.” 
Failure symptoms include:

Read/Write failure

Bus hangs

Connectivity issues—tape drive not seen on bus or drops off bus

Command failures—commands to this device may fail while commands 
to other devices on the bus may work properly
B
ACKUP
 S
OFTWARE
 R
EPORTS
 
AN
 E
RROR
Your backup software may report an error as a result of a failure to 
communicate with the tape drive or autoloader, a failure by the tape drive to 
write or read data, or because of a software configuration issue. 
F
AILURE
 
TO
 C
OMMUNICATE
 
WITH
 
THE
 T
APE
 D
RIVE
Communication problems on the SCSI bus may be reported by the backup 
application as resets, a loss of communication with the tape drive or 
autoloader, failure to detect the tape drive, I/O device errors, or parity errors. 
These types of errors may occur intermittently. 

If you have a SCSI autoloader, check the autoloader’s installation on the 
SCSI bus, described in 
If you have an Ethernet connection to your autoloader, check the 
autoloader’s Ethernet connection, described in 

Use LibTool and LTOTool to capture the diagnostic logs from the autoloader 
and the tape drive immediately after an error is reported by your backup 
software. See 
 for information. 
Technical Support can examine the log to determine the nature of the 
reported error. 
F
AILURE
 
BY
 
THE
 T
APE
 D
RIVE
 
TO
 W
RITE
 
OR
 R
EAD
 D
ATA
If your backup software reports a media error, one of the following situations 
may have occurred:

The tape drive needs cleaning (see 
). 
Always try cleaning the tape drive before you assume the cartridge is bad. 
Be sure to use an LTO Cleaning Cartridge.