the library to retrieve the cleaning cartridge that resides in the library, insert it in
the drive that needs cleaning, clean the drive, then return the cleaning cartridge to
its home slot.
Note:
The drive will automatically eject an expired cleaning cartridge.
The 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 Memory Chip (LTO-CM)
All generations of the IBM LTO Ultrium Data Cartridges include a Linear
Tape-Open Cartridge Memory (LTO-CM) chip (
1
in Figure 6-1 on page 6-1), that
contains information about the cartridge and the tape (such as the name of the
manufacturer that created the tape), as well as statistical information about the
cartridge's use. The LTO-CM enhances the efficiency of the cartridge. For example,
the LTO-CM stores the end-of-data location which, when the next time this
cartridge is inserted and the Write command is issued, enables the drive to quickly
locate the recording area and begin recording. The LTO-CM also aids in
determining the reliability of the cartridge by storing data about its age, how many
times it has been loaded, and how many errors it has accumulated. Whenever a
tape cartridge is unloaded, the tape drive writes any pertinent information to the
cartridge memory.
The storage capacity of the LTO Generation 4 and 5 LTO-CM is 8160 bytes. LTO
Generations 1, 2, and 3 have an LTO-CM capacity of 4096 bytes.
Bar Code Label
A bar code label contains:
v
A volume serial number (VOLSER) that is human-readable
v
A bar code that the library can read
Note:
The LTO Ultrium 5 and 6 Tape Drives do not require bar code labels, but
you may choose to use labels for tape cartridge identification purposes.
Table 6-5. Bar code label requirements for Ultrium tape drives and libraries
Ultrium Tape Drive/Library
Bar Code Label Requirements
3573
Required
3576
Required
3580
Not required
3581
Required with optional Bar Code Reader
3582
Required
3583
Required
3584
Required
When read by a library's bar code reader, the bar code identifies the cartridge's
VOLSER to the library. The bar code also tells the library whether the cartridge is a
data cartridge or cleaning cartridge. In addition, the bar code includes the
two-character media-type identifier
Lx
, where
x
equals 1, 2, 3, 4, 5 or 6.
L
identifies
Chapter 6. Using Ultrium Media
6-5
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Summary of Contents for System Storage TS3100
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