HP EliteOne 800 G1 21.5-inch Non-Touch All-in-
One PC
Technical Specifications – Hard Disk and Solid State Storage
Worldwide — Version 1.4 — February 19, 2014
Introduction:
HP Serial Advanced Technology Attachment (SATA) Hard Drives maximize the performance of HP Business PCs by
providing the technologies to meet your increasing storage demands with high-capacity drives offering superior reliability
and performance.
SATA provides faster data transfer speeds, better system cooling airflow, more bandwidth, more headroom for speed
increases in future generations and better data integrity. A next-generation technology, the SATA interface connects hard
drives to the PC platform enabling easy aggregation of multiple hard drives into a single PC. This offers you the additional
benefits of dedicated bandwidth, the ability to more easily identify device failures and scalability. The HP Elite 800 Series
supports the latest SATA 6.0Gb/s specification.
HP Drive Lock
HP Serial ATA Hard Drives offer enhanced security via a new Drive Lock. When enabled, this ATA security feature set
prevents software access to user data on the drive until one or two user-defined passwords are provided.
SMART IV Technology
Self Monitoring Analysis and Reporting Technology (SMART) hard drive technology allows hard drives to monitor their
own health and to raise flags if imminent failures are predicted. If the drive determines that a failure is imminent, the
SMART hard drive technology enables the intelligent manageability or management software to generate a fault alert.
While the current versions of SMART hard drives do a good job monitoring the data on the hard drive media, the ever
increasing emphasis on reliability and quality has promoted HP to implement SMART IV technology which constantly
checks that the data flow from host interface to media and media to host interface is not compromised. This is
accomplished by inserting a 2 byte parity code into every 512 byte block in the data path of the hard drive's Cache RAM.
This unique parity checking performed by HP's SMART IV technology hard drives, allows for more complete error
detection coverage encompassing the entire data path between the host and the hard drive.
Smart IV is also known as IOEDC: I/O Error Detection Code.
Native Command Queuing
NCQ or Native Command Queuing is a SATA protocol extension that allows the hard drive to have several write or read
commands outstanding at the same time. In contrast, normal non-queued operation requires each command to be
completed before the next command is issued by the host system. Queuing allows the drive to complete the commands in
the order that allows for best overall throughput. It also involves an advanced method of transferring data to or from the
host, called First Party Direct Memory Access (FPDMA), which allows the hard drive and the host controller to manage
the data transfers for multiple outstanding commands, without involving the host processor. NCQ can contribute to better
performance but the results are dependent on many factors, including the access patterns of the various applications and
operating system functions that are initiating drive accesses. Enabling NCQ features in the hard drive requires AHCI
support from the host system BIOS, controller, and driver. AHCI support is typically implemented in RAID configurations.
NOTE: GB = 1 billion bytes. Actual available capacity is less.
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