问题描述
RAID 5击败RAID 10
结果不是我的预期。
我有2个相同的服务器。
硬件：
PowerEdge 2850
2双核双核Xeon 2800 MHz
4GB RAM
控制器卡：Perc4 / DC（2个阵列），Perc4e / Di（1个阵列）
PowerVault 220S
每个阵列包含6-300 GB驱动器。
服务器1 =突袭10
3,6个磁盘阵列
服务器2 =突袭5（每个约838 GB）
3,6个磁盘阵列（每个约1360 GB）
测试获胜者％更快
SQL Server - 更新RAID 5 13
重型ETL RAID 5 16
SQLIO - Rand写入RAID 10 40
SQLIO - Rand读取RAID 10 30
SQLIO - Seq写入RAID 5 15
SQLIO - Seq读取RAID 5混合
Disktt - Seq写入RAID 5 18
Disktt - Seq读取RAID 5 2000
Disktt - Rand阅读RAID 5 62
通行证 - 混合RAID 10变化
通行证 -
模拟SQL Server RAID 5 1％
如果有人有兴趣，我有更多细节。
RAID 5 beats RAID 10
Can I get some feedback on these results? We were having some serious
IO issues according to PerfMon so I really pushed for RAID 10. The
results are not what I expected.
I have 2 identical servers.
Hardware:
PowerEdge 2850
2 dual core dual core Xeon 2800 MHz
4GB RAM
Controller Cards: Perc4/DC (2 arrays), Perc4e/Di (1 array)
PowerVault 220S
Each Array consisted of 6-300 GB drives.
Server 1 = Raid 10
3, 6-disk arrays
Server 2 = Raid 5 (~838 GB each)
3, 6-disk arrays (~1360 GB each)
TestWinner% Faster
SQL Server - UpdateRAID 513
Heavy ETLRAID 516
SQLIO - Rand WriteRAID 1040
SQLIO - Rand ReadRAID 1030
SQLIO - Seq WriteRAID 515
SQLIO - Seq ReadRAID 5Mixed
Disktt - Seq WriteRAID 518
Disktt - Seq ReadRAID 52000
Disktt - Rand ReadRAID 562
Pass Mark - mixedRAID 10Varies
Pass Mark -
Simulate SQL ServerRAID 51%
I have much more detail than this if anyone is interested.
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