The majority of the engineering endeavor on the DAT-160 impel has away into the DAT 160 cartridge load/unload, DAT160 media threading and tape path. The mould wrong degree ERT of the guide measures how great the tape course and threading is. Descendant deviations in tape tracking and tape column damage show themselves in a degradation of ERT.

A important constitution petty of the DAT160 tape manage is that it is a transition action to higher authority DAT technology and HP wanted to make sure that the installed imitation had a bad backwards compatibility experience. Ensuring existing users of DAT72 and DAT40 media espy a positive reinstate on their investment in the technology is seen as lifetime crucial to the contemporary advance of DAT. HP sees backwards compatibility as activity a essential component of the DAT160's answer on investment equation, unlike other technologies that proposition increased capacity/performance however submission no backwards compatibility.

A facund element of any evolvement programme is testing. Comp Verification and Investigation (DVT) reports are developed testing everyone specification. Thanks to of the complexities of the two formats, the analysis course of action for the DAT160 propel was all the more larger and longer than for preceding generations of DAT. In complete 450,000 hours (more than 5 years) of testing were performed on the DAT160 handle before release.

HP provides an MTBFMean period between failures and bit ERT specification for its DDS products as a docent to the reliability that can be expected during customer practice of these products. These specifications have, in the past, been generated using pre-production testing during the buildup of products.

The existing specifications for the DDS products (pre 2004) were:

MTBF: 400,000 hours at a 12% duty cycle
Unrecoverable bit ERT: 1 in 1x10-15

Based on universe news gathered for the HP DDS-4 and DAT72 products, these specifications accept instantly been revised to bring them inline with the reliability seen in the globe by deadline users based on an assumed business cycle. Therefore, this gives a even extended representative degree of the absolute reliability of the product.

The revised specifications are:
MTBF: 125,000 hours at a 100% profession cycle
Unrecoverable bit ERT: 1 in 1x10-17

Parallel SCSI Ultra 320 is duration superseded by SAS interfaces on systems and servers. This trend is existence followed by the tape ride industry. In nearly all ProLiant servers, paralell SCSI is vitality phased outside and Serial Attach SCSI (SAS) is fascinating its place. HP is providing the DAT160 coerce in three variants to cooperate users in the copper over. We gape SCSI variants growth used in traditional legacy situations.

SAS DAT160 tape drives can connect either to an embedded SAS Onslaught controller or to a committed SAS HBA. All desktops, laptops, and servers instanter own extra than one USB port. So with these three connectivity options, SCSI (for installed base), SAS for coming up server connect, and USB (for common connect), the DAT160 operate is assured to protect customer's investment in DAT technology.

HP has considering of everything with the DAT 160 drive. When HP launched the recent versions of the DAT72 drive, particularly the DAT-72 USB, some customers considered the fan further booming for accepted occupation environments. HP has re-engineered the notion and the DAT160 drive testament help from this.

The commencing fan in the DAT 72 enclosure ran at 8200 rpm and generated babble of 28.0 dBA. The fresh fan in the DAT-160 enclosure is larger than in the previous DAT-72 enclosures and hence gives expanded airflow at a lower babel level. The fan runs at 3700 rpm and generates racket of 22 dBA, which is just now yet enhanced "office friendly."

Some other engineering adjustments extremely enabled the slower fan to afford the capable cooling required by the DAT160 drive:

• Improved air exhaust efficiency by increasing the magnitude of the vent holes at the rear of the enclosure
• Minimized impeller cavitations by "dishing" the fan vent, so creating a room between the rear panel and the fan

Improved stability of air flowing into the fan by increasing the length of the enclosure (so else interval last drive).