HP ProLiant 4500 I/O Performance Tuning of Compaq Servers - Page 37
ECG044.0399
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I/O Performance Tuning of Compaq Servers 37 30000 25000 (256 KB Block Size, 100% Read, 100% Sequential) 26053 25874 KB/sec 20000 15000 10000 5000 10480 7656 17000 SMART-2SL SW RAID in NT 4779 0 RAID 1 ( 2 drvs ) RAID 5 ( 6 drvs ) RAID 5, Degraded ( 5 drvs ) Figure 33. Relative maximum sustained throughput for both hardware and software RAID systems with 256KB block, 100% sequential reads. These results were obtained using Iometer version 1998.10.08, Copyright 1998 by Intel Corporation. Intel does not endorse any Iometer results. (512 Byte Block Size, 100% Read, 100% Sequential) 3000 2844 2850 2841 2500 IO/sec 2000 1500 1000 921 1035 SMART-2SL SW RAID in NT 500 280 0 RAID 1 ( 2 drvs ) RAID 5 ( 6 drvs ) RAID 5, Degraded ( 5 drvs ) Figure 34. Relative maximum sustained throughput for both hardware and software RAID systems with 512KB block, 100% sequential reads. These results were obtained using Iometer version 1998.10.08, Copyright 1998 by Intel Corporation. Intel does not endorse any Iometer results. ECG044.0399