[測試] 【首測】Dell PERC H710P 6Gbps SAS/SATA RAID Card + 4 x SSD Raid0 測試

Dell PERC H710P 1GB NV Cache 6Gb/s SAS+SATA Raid Controller 功能簡介:











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測試配置為Crucial M4 128GB SATA 6Gb/s SSD x 4 Raid 0  @  Dell PERC H710P

RAID VD Setting:
Strip Size = 64KB
IO Policy = Direct IO
Read Policy = No Read Ahead
Write Policy = Write Through








首先測試的是單顆Crucial M4 128GB SATA 6Gb/s SSD的基準速度:









接著就是Crucial M4 128GB SATA 6Gb/s SSD x 4 Raid 0  @  Dell PERC H710P的速度測試:

HD Tune Pro 測得的讀取速度最高為1,684MB/s,平均速度為1,652MB/s




寫入速度最高為753MB/s,平均速度則為711MB/s




AS SSD的成績為2187分,4K-64Thrd讀取速度為236,430 IOPS,寫入則為110,910 IOPS



AS SSD的成績為2187分
新記錄

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卡加SSD成皮嘢

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張咭有無d類似LSI的fast path的玩法呢?

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張咭有無d類似LSI的fast path的玩法呢?
amoslee 發表於 2012-7-16 09:34

張卡已內置Fast Path和CacheCade

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ching.direct io 同cach io; write through 同write back,呢兩個應該點set ?

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ching.direct io 同cach io; write through 同write back,呢兩個應該點set ?
ckl20002003 發表於 2012-7-17 10:40

RAID VD Setting:
Strip Size = 64KB
IO Policy = Direct IO
Read Policy = No Read Ahead
Write Policy = Write Through

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回復 7# idolclub
ching,如果係IO POLICY SET為CACH IO,會吾會更快呢?

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回復  idolclub
ching,如果係IO POLICY SET為CACH IO,會吾會更快呢?
ckl20002003 發表於 2012-7-19 01:39

如果要用Fastpath 一定要跟住set.

Standard volume policy for FastPath Software
Write Policy: Write Through
IO Policy: Direct IO
Read Policy: No Read Ahead
Stripe Size: 64KB
Note:
1. Write Through and Direct IO enables FastPath feature for solid-state drives (SSDs). If either Write Back or Cached IO are used, then full FastPath performance can not be achieved.
2. Parameters above provide the best performance over the broadest range of configurations and workloads. Have found in some instances that smaller and or larger strip size can provide some additional
performance benefit.

http://www.lsi.com/downloads/Pub ... luation-kit-3.0.pdf

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請問 raid 用普通硬碟及有BBU (但無 Fast Path),  Direct IO 快還是 Cache IO 快?
Read/Write Policy 如何set會更好?
謝謝.

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