Economies of Capacity and Speed: Choosing the most cost-effective disc drive (263K) (PDF)
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...drive test results from IBM xSeries 335 with EXP 400:8KB, 2/3 random read, 1/3 random write, queue depth 16. Rather than ever before. In effect, IT departments are maintained whether testing 14 drives (as access density, or IOPS/GB... a remarkable rate. Disc drive performance has not kept pace with 10K drives (see Appendix A) that access that the drive will be a bottleneck in disc drive capacity. This is expected ..., it also hasn't kept up with 15K-RPM drives. CPU Performance Memory Size Memory Performance Disc Drive Capacity Disc Drive Performance 1987 1 MIPS 16 Kbytes 100 usec 20 ...
...drive test results from IBM xSeries 335 with EXP 400:8KB, 2/3 random read, 1/3 random write, queue depth 16. Rather than ever before. In effect, IT departments are maintained whether testing 14 drives (as access density, or IOPS/GB... a remarkable rate. Disc drive performance has not kept pace with 10K drives (see Appendix A) that access that the drive will be a bottleneck in disc drive capacity. This is expected ..., it also hasn't kept up with 15K-RPM drives. CPU Performance Memory Size Memory Performance Disc Drive Capacity Disc Drive Performance 1987 1 MIPS 16 Kbytes 100 usec 20 ...
Economies of Capacity and Speed: Choosing the most cost-effective disc drive (263K) (PDF)
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..., high-performance 15K drives decrease RAID rebuild times. SPC comparison Disc drive capacity has repeatedly multiplied over recent years, placing increasing demands on Overall Reliability The Seagate 10K-RPM and 15K-RPM disc drives carry the highest reliability...GB 24507.22 SPC-1 IOPSTM, Mirroring A00023 Figure 8. The bottom line is the drive of choice for applications where data is infrequently accessed. Both have similar or lower power and cooling requirements, acoustics and rotational vibration compared to use 15K drives. (see Figure 8) Storage Subsystem Disc Drive IBM...
..., high-performance 15K drives decrease RAID rebuild times. SPC comparison Disc drive capacity has repeatedly multiplied over recent years, placing increasing demands on Overall Reliability The Seagate 10K-RPM and 15K-RPM disc drives carry the highest reliability...GB 24507.22 SPC-1 IOPSTM, Mirroring A00023 Figure 8. The bottom line is the drive of choice for applications where data is infrequently accessed. Both have similar or lower power and cooling requirements, acoustics and rotational vibration compared to use 15K drives. (see Figure 8) Storage Subsystem Disc Drive IBM...
Optimizing Storage with SAS: Beyond the 10K Compromise (72K, PDF)
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...SAS configuration under consideration, the net result is that ultimately determines the cost-effectiveness of SAS and SATA drives • Fully exploit SATA's cost/GB economies without compromising enterprise management and reliability requirements • Increase storage capacity while maintaining application requirements 2 ... online and nearline applications with 10K SAS drives, the associated performance and capacity figures are widely available to ensure every application-from IBM xSeries 336 with the optimal blend of six 15K SAS/6 SATA drives results in 33 percent higher IOPS (330...
...SAS configuration under consideration, the net result is that ultimately determines the cost-effectiveness of SAS and SATA drives • Fully exploit SATA's cost/GB economies without compromising enterprise management and reliability requirements • Increase storage capacity while maintaining application requirements 2 ... online and nearline applications with 10K SAS drives, the associated performance and capacity figures are widely available to ensure every application-from IBM xSeries 336 with the optimal blend of six 15K SAS/6 SATA drives results in 33 percent higher IOPS (330...