poniedziałek, 31 sierpnia 2009

SSD #2

So today I could finally compare SUN SSD results with my SSD experience. I check two configurations:

- Dell R610, 12GB RAM, 4x50GB SSD RAID10
- Dell R610, 12GB RAM, 6x50GB SSD RAID10

SSD: SAMSUNG MCCOE50G Rev: 3D3Q

At both run clean CentOS with vdbench 5.01. Use same test as befor.








































































Tests
Server
i/o

rate


MB/sec

1024**2



bytes

i/o


read

pct


resp

time


resp

max


resp

stddev


cpu%

sys+usr


cpu%

sys


Random Read (4K) threads=32
HP DL360 G6 8x146GB SAS 15k RAID 10, 12GB RAM

2097,13
8,19
4096
100,00
15,257
407,631
13,818
0,3
0,2

HP DL360 G6 8x146GB SAS 15k RAID 50, 12GB RAM
1933,43
7,55
4096
100,00
16,549
416,267
15,998

0,3
0,2
DELL M600 2x146GB SAS 15K RAID1, 8GB RAM
595,50
2,33
4096
100,00
53,735

1313,692
66,092
0,2
0,2
DELL R610 4x50GB RAID10 12GB RAM SSD
16830,99
65,75
4096

100,00
1,9
28,730
0,566
1,8
1,7
DELL R610 6x50GB RAID10 12GB RAM SSD
18234,40

71,23
4096
100,00
1,753
22,646
0,439
2,1
1,9
Random Write (4K) threads=32
HP DL360 G6 8x146GB SAS 15k RAID 10, 12GB RAM
1963,12
7,67
4096
0,00
16,298

1511,424
15,338
0,4
0,3
HP DL360 G6 8x146GB SAS 15k RAID 50, 12GB RAM
1124,42
4,39
4096

0,00
28,457
1229,856
16,496
0,2
0,2
DELL M600 2x146GB SAS 15K RAID1, 8GB RAM
247,19

0,97
4096
0,00
129,457
1520,834
114,036
0,2
0,2
DELL R610 4x50GB RAID10 12GB RAM SSD
982,59
3,84
4096
0,00
32,564
339,488
16,693

0,3
0,3
DELL R610 6x50GB RAID10 12GB RAM SSD
1459,31
5,70
4096
0,00
21,926

243,077
10,288
0,2
0,2
50-50 Read/Write (4K) threads=32
HP DL360 G6 8x146GB SAS 15k RAID 10, 12GB RAM
1998,44

7,81
4096
50,03
16,010
702,082
29,572
0,3
0,3
HP DL360 G6 8x146GB SAS 15k RAID 50, 12GB RAM
1388,33
5,42
4096
50,02
23,047
1259,130
44,446

0,2
0,2
DELL M600 2x146GB SAS 15K RAID1, 8GB RAM
327,78
1,28
4096
49,95
97,625

1301,350
81,706
0,3
0,3
DELL R610 4x50GB RAID10 12GB RAM SSD
1674,78
6,54
4096

50,00
19,105
264,783
27,222
0,2
0,1
DELL R610 6x50GB RAID10 12GB RAM SSD
2413,06

9,43
4096
50,00
13,259
250,832
20,313
0,2
0,2
Sequential Read (MB/sec) threads=32
HP DL360 G6 8x146GB SAS 15k RAID 10, 12GB RAM
766,06
383,03
524288
100,00
41,769

1216,561
178,083
0,5
0,5
HP DL360 G6 8x146GB SAS 15k RAID 50, 12GB RAM
489,26
244,63
524288

100,00
65,407
2437,031
342,871
0,3
0,3
DELL M600 2x146GB SAS 15K RAID1, 8GB RAM
142,88

71,44
524288
100,00
223,902
1970,552
467,248
0,2
0,1
DELL R610 4x50GB RAID10 12GB RAM SSD
314,19
157,1
524288
100,00
101,837
980,956
275,867

0,1
0,1
DELL R610 6x50GB RAID10 12GB RAM SSD
453,45
226,72
524288
100,00
70,553

765,786
194,196
0,3
0,3
Sequential Write (MB/sec) threads=32
HP DL360 G6 8x146GB SAS 15k RAID 10, 12GB RAM
439,24

219,62
524288
0,00
72,853
590,213
46,006
0,2
0,2
HP DL360 G6 8x146GB SAS 15k RAID 50, 12GB RAM
1194,07
597,03
524288
0,00
26,797
155,358
5,514

0,6
0,6
DELL M600 2x146GB SAS 15K RAID1, 8GB RAM
140,25
70,13
524288
0,00
228,155

397,324
30,052
0,1
0,1
DELL R610 4x50GB RAID10 12GB RAM SSD
247,72
123,86
524288

0,00
129,175
244,959
14,121
0,1
0,1
DELL R610 6x50GB RAID10 12GB RAM SSD
370,52

185,26
524288
0,00
86,363
213,793
9,973
0,2
0,1


I have to say that's not impressive at all. True, reads are nice, but come on, writes 12x times slower ?!? It's really far far from ok.

Maybe it's Dell firmware, but atm I got latest firmware every part.

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