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SAN Benchmarks

We have benchmarked a variety of products from many SAN vendors. Table 9-3 shows a selection of typical results at low concurrency.

Table 9-3. Synchronous single-threaded 16 KB operations per second on a 4 GB file

Device

Sequential write

Sequential read

Random write

Random read

SAN1 with RAID 5

2428

5794

629

258

SAN1 with RAID 10

1765

3427

1725

213

SAN2 over NFS

1768

3154

2056

166

10k RPM hard drives, RAID 1

7027

4773

2302

310

Intel SSD

3045

6266

2427

4397

The exact SAN vendors and configurations shall remain a secret, although we can reveal that these are not low-budget SANs. We ran these benchmarks with synchronous 16 KB operations, which emulates the way that InnoDB operates when configured in O_DIRECT mode.


  

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