IBM TS4500, Введение и руководство по планированию

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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 you next insert a cartridge and issue the
Write command, 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 you unload a tape cartridge, the tape drive
writes any pertinent information to the cartridge memory. The storage capacity of
the LTO-CM is 4096 bytes.
The cartridge door
▌2▐
protects the tape from contamination when the cartridge is
out of the drive. Behind the door, the tape is attached to a leader pin
▌3▐
. When
you insert the cartridge into the drive, a threading mechanism pulls the pin (and
tape) out of the cartridge, across the drive head, and onto a non-removable takeup
reel. The head can then read or write data from or to the tape.
The write-protect switch
▌4▐
prevents data from being written to the tape
cartridge. The label area
▌5▐
provides a location for you to place a label. Affix only
a bar code label. When affixing a label, place it only in the recessed label area. A
label that extends outside of the recessed area can cause loading problems in the
internal drive or in the TS4500 tape library. The insertion guide
▌6▐
is a large,
notched area that prevents you from inserting the cartridge incorrectly. You can
order tape cartridges with the bar code labels included, or you can order custom
labels.
Generation 3 and later generations of the LTO data cartridge have a nominal
cartridge life of 20,000 load and unload cycles.
LTO cleaning cartridge
The IBM LTO cleaning cartridge is used to clean LTO tape drives.
To maintain the operating efficiency of the drive, IBM supplies a cleaning cartridge
with the first frame of each media type. Thus if the TS4500 tape library contains
frames with both LTO and 3592 tape drives, IBM supplies one LTO cleaning
cartridge and one 3592 cleaning cartridge regardless of how many frames of each
type are in the library. Each drive determines when it needs to be cleaned and
alerts the library. The TS4500 tape library automatically cleans drives as needed,
however you can also use the TS4500 management GUI to initiate a manual
cleaning if necessary.
Note: The volume serial (VOLSER) number on the cleaning cartridge's bar code
label must begin with CLNI or CLNU , or the library treats the cleaning cartridge
as a data cartridge during an inventory.
The LTO Cleaning Cartridge is compatible with all LTO tape drives.
Before a drive can be cleaned, ensure that a cleaning cartridge is loaded in the
library. You can load multiple cleaning cartridges and store them in any cartridge
storage slots.
The TS4500 tape library monitors the use of all cleaning cartridges. The IBM
cleaning cartridges are valid for 50 uses. When a cleaning cartridge is almost
expired, a warning icon displays on the TS4500 management GUI. When a
cleaning cartridge has expired, an error icon displays.You can also enable
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IBM TS4500: Introduction and Planning Guide