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StorageTek Data Integrity Validation
StorageTek Data Integrity Validation (DIV) ensures that a checksum, provided by an
application or file system, is validated by the StorageTek T10000 for each record sent to
the drive. The user-generated checksum is stored with each record on tape and can be
checked on any future read or verify operation (without the added overhead of
sending data to the host). Information about how to use this feature is available in:
StorageTek T10000 Tape Drive Fibre Channel Reference Manual
■
Redefining Tape Usage with StorageTek Tape Tiering Accelerator and StorageTek In-Drive
■
Reclaim Accelerator (white paper)
The DIV feature is available for the FC tape drive and requires application support.
StorageTek Maximum Capacity
Maximum Capacity enables the use of tape capacity that is normally reserved to
ensure tape-to-tape copy operations succeed. The StorageTek T10000 Tape Drive Fibre
Channel Interface Reference Manual describes how to use this feature. This feature
increases the capacity of the T10000C to as much as 5.5 TB or the T10000D to as much
as 8.5 TB.
Maximum capacity is off by default (enabled through VOP), available on FC drives
and VSM, and no application support is needed.
StorageTek File Sync Accelerator
The StorageTek File Sync Accelerator (FSA) enables applications to reduce or eliminate
back hitches that are normally caused by writing a tape mark or other sync operations.
The FSA feature is on by default (disabled through VOP), available on FC and FICON
drives, and no application support is needed.
Refer to the white paper Maximizing Tape Performance with the StorageTek T10000 Tape
Drives.
StorageTek Tape Application Accelerator
The StorageTek Tape Application Accelerator (TAA) increases write throughput to tape
despite an application inserting sync commands into the data stream. When TAA is
enabled, the drive converts tape marks to buffered tape marks and syncs to NO-OPs.
Data is written to tape faster because buffered tape marks and NO-OPs do not cause
the tape drive to empty the contents of its buffer to tape and back hitch.
The TAA feature is off by default (enabled through VOP), available on FC and FICON
drives, and no application support is needed.
Before enabling a TAA configuration, the user must determine how their particular
application uses write tape marks and syncs. The terms File Sync and Write Tape Mark
are defined differently in FICON and Fibre Channel environments.
When TAA is enable in a FICON drive, File Syncs are always converted to
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NO-OPs and tape marks are always treated as buffered tape marks.
Tape Drive Features
Introduction 1-17
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