Hard Drive - Ultra Wide SCSI

Ultra Wide SCSI types

The Ultra Wide SCSI hard drive falls in the latest interfaces of the SCSI standard and has distinctive features that deliver greater performance and increased storage capacity. The Small Computer System Interface (SCSI) is the standard that describes commands, electrical, protocol, logical, and optical interfaces used for transferring data to and from computers and other peripheral devices. Hard disk drives commonly use the SCSI and the interface dictates how it is used. However, SCSI can be used to connect an assortment of peripheral devices such as scanners.

When using Ultra Wide SCSI HDD, the standard describes commands for specific types of peripheral devices. In addition, the "unknown" as a type of peripheral device implies that the standard is able to interface just about any device. Generally, the SCSI standard is geared towards commercial applications and requirements such as high performance professional workstations and servers

The SCSI-1 is the initial SCSI standard and was first published in 1986, followed closely by the SCSI-2 in 1990 and subsequent revisions including serial attached SCSI (SAS), ultra wide SCSI, USB attached SCSI (UAS) and SCSI-over-fiber channel protocol (FCP) among other interfaces. The net effect of all these revisions and refinements is the improvement in both performance and data storage capacity.

We have the 7.2K RPM Ultra Wide SCSI HDDs under 20GB which possesses the S.M.A.R.T compliant ultra wide SCSI interface type for high-end commercial desktops, all operations systems including Windows, macOS and Linux, and high performance workstations. This hard drive has 32-bit data width and the magneto-resistive (MR) read/write head technology for faster efficient performance.

Notable features of the Ultra Wide SCSI hard drive disk include:

  • A single 80-pin Centronics (SCA-2) connector
  • 5-12 V nominal voltage on DC current
  • Spindle/rotational speeds of up to 10K RPM for the higher-performing hard drive disks and spindle speeds of 7.2K RPM for the value-oriented hard drives.
  • 3.5" wide and 0.5" height form factor which represents the short form factor.
  • Hot-swap hard drive
  • Average latency of 4.2 ms
  • Ultra Wide SCSI storage interface
  • Average seek times of 9ms
  • Data transfer rates of up to 40 Mbps
  • Buffer sizes of 512 KB and a range of storage capacities under 20 GB
  • Compliance with the S.M.A.R.T standard

Ultra Wide SCSI HDDs are cyclic redundancy check (CRC) - enabled to enhance data integrity. The feature works in that the hard drive calculates a short but fixed-length binary sequence otherwise referred to as the check value or CRC for each data block to be sent or stored and affixes it to that data. It essentially forms a code word that is compared to a freshly calculated check value to ascertain data integrity. The sent data block will have a data error if it doesn't match. The hard drive will take corrective action by re-reading the block or by requesting that block to be sent once more.

Having chosen the Ultra Wide SCSI hard drive disks, you stand to reap greater and efficient performance as well as enhanced reliability in all applications.