Product Positioning - IBM TS1140 User Manual

• Digital speed matching: The TS1140 E07 is designed to dynamically perform
digital speed matching in 14 speeds to adjust the drive's native data rate to the
net host data rate (after data compressibility has been factored out) to help allow
slower hosts to stream the tape drive.
• Channel calibration: The channel calibration feature is designed to allow for
customization of each read/write data channel for optimum performance. The
customization can enable compensation for variations in the recording channel
transfer function, media characteristics, and read/write head characteristics. The
TS1140 E07 is designed to automatically perform recalibration in the field if it
detects degraded performance.
• High resolution tape directory plus enhanced search speed: The TS1140 E07
Tape Drive maintains a tape directory structure with a high granularity of
information about the physical position of data blocks on the media. This feature,
plus the increased search speed, allows the TS1140 E07 to have improved
nominal and average access times for locate operations versus previous IBM tape
drives.
• Streaming Lossless Data Compression (SLDC) algorithm: SLDC is an
implementation of a Lempel-Ziv class 1 (LZ-1) data compression algorithm. It is
an extension to Adaptive Lossless Data Compression (ALDC) and is designed to
offer an improvement over previous IBM lossless compression algorithms.
In addition, the TS1140 E07 offers the following enhancements over other 3592
Model Tape Drives:
• Large internal data buffer: The TS1140 E07 Tape Drive has a 1 GB internal data
buffer. Along with enabling higher performance characteristics, the data buffer is
designed to use support read ahead of compressed data from tape and provide
high performance random skip forward sequential (short hop) locates common in
database search and tape software recycle operations.
• Offboard data string searching: The TS1140 E07 Tape Drive can search the data
content of host records for string matches offboard from the host server. The
tape drive can perform this search at maximum data rate (250 MB/sec native)
while it would take much longer for a host server to read the data, buffer the
data to disk, and then parse the actual data stream with host software routines.
• Enhanced logic to report logical end-of-tape (LEOT): LEOT is now reported
based on a combination of capacity-based and position-based LEOT indicators.
The TS1140 E07 monitors the total accumulated number of physical tape data
sets written to the volume and will report LEOT based on this capacity-based
LEOT value. This allows tape copies to complete without overflow a much higher
percentage of the time.

Product positioning

The TS1140 E07 Tape Drive is the next generation of the highly successful 3592
Enterprise Tape Drive. The TS1140 is supported in a wide range of environments,
including IBM Power Systems, IBM System i, IBM System p, IBM System x, and
other servers running AIX, HP-UX, Linux, Oracle Solaris, and Microsoft Windows
operating system environments. It has significant performance and capacity benefits
over the IBM TS1130, as well as other half-inch tape drives.
The TS1140 is designed for high-performance computing environments where high
reliability, capacity, and performance are mandated. It should be considered in the
following environments:
• Current enterprise tape drive applications in TS3500 or stand-alone
environments where:
– Space allocated to tape cartridges needs to be reduced within automation
solutions or offline storage.
– Backup windows are growing and there is a need for higher performance tape
drives to back up larger amounts of data in less time.
– A Fibre Channel-attached drive with native switched fabric capability is
required.
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