The majority of the engineering crack on the DAT-160 impel has absent into the DAT 160 cartridge load/unload, DAT160 media threading and tape path. The example fault percentage ERT of the propel measures how admirable the tape course of action and threading is. Kid deviations in tape tracking and tape string damage demonstrate themselves in a degradation of ERT.

A decisive invent tiny of the DAT160 tape guide is that it is a transition transaction to higher energy DAT technology and HP wanted to confirm that the installed mannequin had a congenial backwards compatibility experience. Ensuring existing users of DAT72 and DAT40 media examine a skilled reinstate on their investment in the technology is seen as existence crucial to the current achievement of DAT. HP sees backwards compatibility as career a essential component of the DAT160's reimburse on investment equation, unlike other technologies that overture increased capacity/performance on the other hand pass no backwards compatibility.

A eloquent element of any elaborating programme is testing. Plot Verification and Analysis (DVT) reports are developed testing everyone specification. Owing to of the complexities of the two formats, the comp angle for the DAT160 ride was yet 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 operate before release.

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

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

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

Based on universe info gathered for the HP DDS-4 and DAT72 products, these specifications hog double time been revised to bring them inline with the reliability seen in the world by extent users based on an assumed business cycle. Therefore, this gives a still also representative degree of the genuine reliability of the product.

The revised specifications are:
MTBF: 125,000 hours at a 100% employment 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Parallel SCSI Ultra 320 is duration superseded by SAS interfaces on systems and servers.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 lifetime followed by the tape handle industry. In nearly all ProLiant servers, match SCSI is continuance phased absent and Serial Attach SCSI (SAS) is beguiling its place. HP is providing the DAT160 manage in three variants to backing users in the alter over. We clock SCSI variants life used in traditional legacy situations.

SAS DAT160 tape drives can connect either to an embedded SAS Onset controller or to a committed SAS HBA. All desktops, laptops, and servers away corner added than one USB port. So with these three connectivity options, SCSI (for installed base), SAS for eventual server connect, and USB (for regular connect), the DAT160 coerce is assured to protect customer's investment in DAT technology.

HP has doctrine of everything with the DAT 160 drive. When HP launched the modern versions of the DAT72 drive, exceptionally the DAT-72 USB, some customers considered the fan very ear-splitting for popular employment environments. HP has re-engineered the belief and the DAT160 drive testament blessing from this.

The new fan in the DAT 72 enclosure ran at 8200 rpm and generated bewailing of 28.0 dBA. The fresh fan in the DAT-160 enclosure is larger than in the previous DAT-72 enclosures and hence gives aggrandized airflow at a lower clamour level. The fan runs at 3700 rpm and generates blast of 22 dBA, which is pdq all the more extra "office friendly."

Some other engineering adjustments further enabled the slower fan to feed the forceful cooling required by the DAT160 drive:

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

Improved stability of air flowing into the fan by increasing the length of the enclosure (so and period ultimate drive).