IBM System Storage TS2230, Руководство по установке, эксплуатации и обслуживанию

Страница: 64 / 141

v The format of a WORM Tape Cartridge is unlike that of standard read/write
media. This unique format prevents a drive that lacks WORM-capable firmware
from writing on a WORM tape cartridge.
v
When the drive senses a WORM cartridge, the firmware prohibits the changing
or altering of user data already written on the tape. The firmware keeps track of
the last appendable point on the tape.
WORM Media Errors
The following conditions cause WORM media errors to occur:
v
Information in the servo manufacturer's word (SMW) on the tape must match
information from the cartridge memory (CM) module in the cartridge. If it does
not match:
– a tape drive will post a media Error Code
7 on the single-character display
(SCD).
– a library will post an error on the operator control panel
v Inserting a WORM tape cartridge into a drive that is not WORM capable causes
the cartridge to be treated as an unsupported medium. The drive will report a
media Error Code
J . Upgrading the drive firmware to the correct code level will
resolve the problem.
Requirements for WORM Capability
To add WORM capability to your LTO Ultrium generation 3 drive(s), drive
firmware must be at the correct code level, and you must use Ultrium 3 400 GB
WORM tape cartridges (see “Media Supplies” on page C-4).
Cleaning Cartridge
A specially labeled IBM LTO Ultrium Cleaning Cartridge is used to clean the drive
head. The drive itself determines when a head needs to be cleaned. To clean the
head, insert the cleaning cartridge into the tape drive. The cleaning is performed
automatically. When the cleaning is finished, the cartridge is ejected.
Note: The drive will automatically eject an expired cleaning cartridge.
IBM Cleaning Cartridges are valid for 50 uses. The cartridge's LTO-CM chip tracks
the number of times that the cartridge is used.
Cartridge Compatibility
Table 4-1. Ultrium cartridge compatibility with Ultrium tape drives
IBM Ultrium Tape Drive
IBM LTO Ultrium Data Cartridges
400 GB
(Ultrium 3)
200GB
(Ultrium 2)
100GB
(Ultrium 1)
Ultrium 3 Read/Write Read/Write Read only
Ultrium 2 Read/Write Read/Write
Ultrium 1 Read/Write
4-4
TS2230 Tape Drive Setup, Operator and Service manual