Hewlett-Packard Co has introduced a 3.5 disk drive storing a formatted 1.05Gb for the OEM market, and come out with a new line of disk arrays for users of its HP 9000 Series 700 workstations. The HP C2247 disk drive features a burst data rate of up to 42M-bits-per-second; it has 10.5mS average seek, spins at 5,400rpm for latency time of 5.6mS; and 20M-bytes-per second synchronous transfer rate with the company’s fast SCSI-2 controller, which transfers data 16 bits at a time, and accommodates up to 16 devices on the same SCSI channel. The HP C2247 features a number of controller options including data pre-fetch function that enhances performance; synchronised spindle function for higher performance in disk arrays; configurable segmented-buffer scheme so the host can adjust the drive’s buffer for maximum throughput; and tagged command queuing with an advanced reordering scheme, which arranges the commands in the queue to provide the fastest disk response to the host. Evaluation units with fast SCSI-2 are available now; units with fast and wide SCSI-2 are expected in the second quarter, when volume production is expected to begin. Single-unit evaluation pricing is $1,765. The new arrays are available for HP 9000 Models 720, 730 and 750 in addition to HP 3000 and HP 9000 multi-user systems. They are the Series 6000 Models 1350SA and 420SA for workstations and servers running HP-UX 8.07. The Model 1350SA comes with from five 5.25 1.36Gb SCSI-2 drives per array, the Model 420SA has five 3.5 422Mb SCSI-2 drives per array. Both have single array controller, fast differential 10M-byte-per-second SCSI-2. The come with a utility to enable the customer to choose the most appropriate RAID mode – it support RAID 0, 0/1 and 5; RAID 3 and independent mode will be available in the second quarter. Up to seven disk arrays can be connected to each SCSI bus for up to 57Gb of external storage on the Model 720 and 730, up to 228Gb on the Model 750. The Model 1350SA is $38,000, the Model 420SA is $20,575; they are on 10 weeks delivery.