QuickSpecs

NOTE: The DAT 160 has 180o wrap angle around the drum
Backwards
Compatibility
HP DAT tape drives are backward read-write compatible with two previous generations, thus:
DAT 160 also reads and writes DAT 72 and DDS-4
DAT 72 also reads and writes DDS-4 and DDS-3
DAT 40 also reads and writes DDS-3 and DDS-2
Proven Reliability HP DAT drives have proven to be exceptionally reliable. The drives have demonstrated
exceptional performance with customers over many years and across different generations and
this has under pinned their popularity.
The drives are designed with reliability in mind and with the security of customer's data as a
priority. Hardware reliability is typically measured as MTBF (Mean Time Between Failures)
associated with duty cycles which suggests the amount the drive is typically used e.g. 100% duty
cycle means the drive is used for 24 hours per day. As a result of field data, the specification for
HP DDS products is stated as 125,000 hours at 100% duty cycle, or 1 million hours at a more
typical 12% duty cycle (drive used on average for 3 hours per day).
Unlike other manufactures' DAT drives, this specification is not generated in the laboratory with
limited numbers of prototype drives and assumptions on customer use; it is generated from real
customer data for the products concerned.
QuickSpecs
HP StorageWorks DAT Drives
Product Highlights
DA - 11883 Worldwide QuickSpecs — Version 28 — 1.26.2008 Page 8