Quantum DLTtape SDLT 600, Руководство пользователя

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D5 | Optimizing the Tape Drive
D5
Optimizing the Tape
Drive
Many factors contribute to SDLT 600 tape drive
performance. Host system considerations include processor
speed, block size, SCSI adapter performance, bus
configurations, and software.
If you are concerned about the performance of your
SDLT 600 tape drive, check the following:
1.
Ensure that your tape drive is properly defined for the
host system. If the tape drive is not defined within the
system, the SCSI adapter does not interact well with the
tape drive.
2.
Make sure your controller card and the SCSI bus are
operating in LVD. If the controller card or the SCSI bus
are operating in SE, the tape drive switches to SE.
3.
De-fragment your hard disk on a regular basis.
Fragmented disks and files take much longer to back up.
4.
Check your host block size. The SDLT 600 tape drive
supports block sizes up to 16 MB. In general, the larger
the block size, the better the throughput. Many older
software applications default to a 512-byte block size,
which results in poor performance.
5.
Make sure you are using a data cartridge that is
compatible with the tape drive.
B1