IBM Deskstar (DSAS) Product Summary free download

File name Deskstar (DSAS) Product Summary.pdf

IBM OEM STORAGE PRODUCTS DSAS-3270, DSAS-3360, DSAS-3540 & DSAS-3720 IBM OEM has introduced a new range of disk drives for the desktop personal computer marketplace. Available in four popular capacity points with SCSI-2 FAST interface, the drives provide excellent performance and improved reliability. APPLICATIONS Desktop personal computers Low-end file servers Low-end workstations FEATURES 281, 365, 548, and 730 MB formatted capacity (512 byte/sector) 10 MB/s data transfer speed 44.5 Mb/s (OD)media data rate 32.5 Mb/s (ID) media data rate Average seek time 12ms (Read) 4500 RPM 192 KB segmented buffer Read ahead caching with LFU (Least Frequently Used) segment update Industry standard mounting The drive can be mounted with any of its six surfaces facing down Enhanced ECC implementation Power saving modes Robust design for EMC/RFI MR (Magneto Resistive) head technology BENEFITS Generic range of popular storage capacities Fast interface data rate Excellent performance on long records Fast access to data Fast data retrieval in (option 96 KB) multi-tasking applications Ease of installation Improved data throughput Reduced power consumption Easy integration across multiple platforms High area density, low component count Assured reliability CONNECTORS Pin 1 SCSI I/F Power Connector Connector Pin 2 Power Connector JP7 Option Block JP1 Back Side of Drive SCSI I/F Connector Logic Card The DC power connector is designed to mate with AMP part 1-480424 (using AMP pins PN 350078-4). Equivalent connectors may be used. Pin assignments are shown below, as viewed from the end of the drive. Pin# 1 2 3 4 +5V GND GND +12V SCSI SIGNAL CONNECTOR The SCSI Signal Connector is a 50-pin connector meeting the ANSI SCSI specification. Note: It is intended that the hard disk drive should only be in electrical contact with the chassis of the PC at a designated set of mounting holes. Other electrical contact may degrade error rate performance. As a result of this it is recommended that there should be no metal contact to the hard disk drive except at the mounting holes or the side rails into which the mounting holes are tapped. OPTION BLOCK Jumper Setting Jumper position and function are as shown below. Pin pitch is 2mm. The jumpers control SCSI Device ID, Auto Spin Up, Unit Attention, SCSI Terminator Connection, and Target Initiated Synchronous Negotiation. Disable Disable Unit