The high costs for the unpartitioned is mainly due to sequential access
costs (772 ms for proposed design vs.
prevents RV from being a limiting factor in performance.
The page-read function supports two page modes (4-word random mode and 8-word sequential access
mode), providing a large improvement on system performance.
Issues of tape, of sequential access
become less and less of an issue.
With the performance enhancements, Adaptec maintains its leadership position in random access performance and is able to reach new levels in sequential access
Some are read intensive and others are write intensive, some favor sequential access
and some others are always accessed randomly.
Additional features include support for two DLT drives for random or sequential access
to 28 data cartridges, increased reliability with an 80,000 hour MTBF rating at 100 percent duty cycle and support for multiple I/O connections, including SCSI, DSSI, CI and FDDI attached.
Typical application profiles include read/write intensity, I/O (transaction) or throughput intensity, and random or sequential access
Breece Hill's Q7 Library has two DLT drives providing random or sequential access
to 28 cartridges, for a total storage capacity of
Rich Wawrzyniak, senior analyst at Semico Research, said, "By combining important functions such as high-speed buffering, switching, multiplexing/de-multiplexing, and random and sequential access
, this emerging category of flow-control management ICs is a cost-effective and time-saving solution for system designers who need to overcome data-flow-control issues in their communications equipment designs.
These three parameters, initial access time, sequential access
only, and a perceived higher management cost represent the next frontier for the Nearline and mass storage providers to address.
Xbridge Host Data Connect enables Windows(R), Web and mobile applications to quickly and securely access virtually all OS/390(R) and z/OS(R) mainframe data including Virtual Storage Access Method (VSAM), Innovation Data Access (IAM(R)), Queued Sequential Access
Method (QSAM), DataBase 2 (DB2) and Information Management System (IMS DB), and to see the data in the format of the requesting application (e.