The TS1140 tape drive supports performance scaling and performance segmentation of media tape cartridges. These functions allow you to optimize performance for MEDIA9 and MEDIA11 cartridges; a cartridge can be defined for performance scaling or performance segmentation, but not both.

Except for the cartridge segment sizes for the EFMT4 and EEFMT4 recording formats, performance scaling and segmentation for the TS1140 is the same as for the TS1120. See Performance scaling and segmentation for TS1120 for an overview of performance scaling and segmentation and for information on the cartridge segment sizes for the EFMT2 and EEFMT2 recording formats.

Performance scaling for the TS1140 (3592 Model E07) tape drive limits the data written to the first 20% (the optimally scaled performance capacity) of the cartridge and when using the performance segmentation option, the overall capacity of the cartridge is limited to 86.6% of the total capacity. The fast access segment occupies the first 20% of the cartridge, followed by the slower access segment. By default, the MEDIA9 or MEDIA11 cartridge is used to its full capacity. When written from loadpoint, a scaled or segmented tape cartridge is reformatted according to the assigned data class.