4 x 146 GB 15k RPM SAS disks in RAID-0

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Just a quick post. I created the RAID-0 array just for a speed test on a HP ProLiant DL380p G8 server.

# dd if=/dev/vg0/test of=/dev/null bs=8M iflag=direct
1280+0 records in
1280+0 records out
10737418240 bytes (11 GB) copied, 16.0664 s, 668 MB/s

# dd if=/dev/zero of=/dev/vg0/test bs=8M oflag=direct
1281+0 records in
1280+0 records out
10737418240 bytes (11 GB) copied, 15.8712 s, 677 MB/s

Read speed: 668 MB/s

Write speed: 677 MB/s

Note: this is sequential read/write, random would be far worse, although I have not performed more tests (yet?).

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