HP ProSignia 500 Compaq ProSignia Family of PC Servers Maintenance and Service - Page 66
Table 5-7. COMPAQ 32-Bit Intelligent Drive Array Controller-2 IDA-2, Maximum Transfer Rate on EISA Bus
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Interleave 1:1 1:1 1:1 Average Seek Time (ms) 12 12 16 Table 5-6. Drive Array Specifications 1020-MB Arrays 680-MB Arrays Number of Drives Two 510-MB Two 340-MB Size 3.5 in 3.5 in Logical Configuration (per physical drive): Cylinders 989 658 Heads 16 16 Sectors per Track 63 63 Bytes per Sector 512 512 Recommended Controller IDA-2 IDA-2 Array Transfer Rate (Mbyte/sec) 4 4 Average Data Service Rate (Requests/sec) 120 119 Table 5-7. COMPAQ 32-Bit Intelligent Drive Array Controller-2 (IDA-2) Dimensions: Height 4.3 in 10.92 cm Depth 5.0 in 12.7 cm Width 13.2 in 33.53 cm Total Weight 13.28 oz 131 g Processor 16-MHz NEC V53 Processor RAM 256-Kbyte 70-ns static RAM Data Transfer Buffer 128-Kbyte 25-ns static RAM Drives Supported Up to six (three drive array pairs) Data Transfer Method 32-bit busmaster Maximum Transfer Rate on EISA Bus 33 MB/sec Simultaneous Drive Transfer Channels Four Reliability Features: Drive Mirroring (RAID 1) Yes Data Guarding (RAID 4) Yes Distributed Data Guarding (RAID 5) Yes Drive Failure Alert System Audible Warning and LED Indicators Rear LED Indicators: Drive Failure Large Amber Drive Activity Indicators Green
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