HP 504062-B21 Performance factors for HP ProLiant Serial Attached Storage (SAS - Page 10

Array P800 Controller using RAID 5 64K.

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Figure 6 illustrates the IOPS performance of various array sizes of SFF SAS drives with the HP Smart Array P800 Controller using RAID 5 (64K). Figure 6. RAID5 performance of SFF 15K 72-GB SAS drive arrays THROUGHPUT (IO Per Second) 4500 4000 3500 3000 2500 2000 1500 1000 500 0 4KB RANDOM READ 4KB RANDOM WRITE SA-P800, RAID-5 (64KB) - SFF 15K 4KB OLTP 8KB RANDOM READ 8KB RANDOM WRITE 4 SFF SAS drives 6 SFF SAS drives 8 SFF SAS drives 12 SFF SAS drives 8KB OLTP IOMETER 07.30.2004 64KB RANDOM READ 64KB RANDOM WRITE 256 128 64 32 16 8 4 2 1 256 128 64 32 16 8 4 2 1 256 128 64 32 16 8 4 2 1 256 128 64 32 16 8 4 2 1 256 128 64 32 16 8 4 2 1 256 128 64 32 16 8 4 2 1 256 128 64 32 16 8 4 2 1 256 128 64 32 16 8 4 2 1 10

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Figure 6 illustrates the IOPS performance of various array sizes of SFF SAS drives with the HP Smart
Array P800 Controller using RAID 5 (64K).
Figure 6.
RAID5 performance of SFF 15K 72-GB SAS drive arrays
SA-P800, RAID-5 (64KB) - SFF 15K
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4KB RANDOM READ
4KB RANDOM WRITE
4KB OLTP
8KB RANDOM READ
8KB RANDOM WRITE
8KB OLTP
64KB RANDOM READ
64KB RANDOM WRITE
THROUGHPUT (IO Per Second)
IOMETER 07.30.2004
4 SFF SAS drives
6 SFF SAS drives
8 SFF SAS drives
12 SFF SAS drives
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