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.

Back from holidays can be scary ;-D

Vdbench 5.01

Just notice new version of Vdbench 5.01 has been released.

From release notes special makes me happy:

- 64-bit support for Solaris, Linux and zLinux.

Cooling doors

Sun provides two types of cooling doors, which attach directly to the Sun Blade 6048 Chassis

Quite WoW :)

SAS vs SSD with vdbench

Server	SAS vs SSD
	HP DL360 G6 8x146GB SAS 15k RAID 10	HP DL360 G6 8x146GB SAS 15k RAID 50	DELL M600 2x146GB SAS 15K RAID1	Sun X4450 4x32GB SSD	Sun X4140/X4440 4x32GB SSD	Sun T5240 4x32GB SSD
Random Read (4K)	2.1K IOPS	1.9K IOPS	0.6K IOPS	98.4K IOPS	33.8K IOPS	71.5K IOPS
Random Write (4K)	1.9K IOPS	1.1K IOPS	0.25K IOPS	31.8K IOPS	16.6K IOPS	14.4K IOPS
50-50 Read/Write (4K)	2.0K IOPS	1.4K IOPS	0.3K IOPS	14.9K IOPS	13.3K IOPS	15.7K IOPS
Sequential Read (MB/sec)	383 MB/sec	245 MB/sec	71 MB/sec	764 MB/sec	463 MB/sec	1012 MB/sec
Sequential Write (MB/sec)	219 MB/sec	597 MB/sec	70 MB/sec	376 MB/sec	470 MB/sec	531 MB/sec

SSD results get from here
Test file was:

sd=sd1,lun=/dev/cciss/c0d0p5,openflags=o_direct
*wd=wd1,sd=sd1,xfersize=4096,rdpct=100
*rd=run1,wd=wd1,iorate=100,elapsed=10,interval=1

wd=wm_80dr,sd=sd*,readpct=0,rhpct=0,seekpct=100
wd=ws_80dr,sd=sd*,readpct=0,rhpct=0,seekpct=0
wd=rm_80dr,sd=(sd1-sd80),readpct=100,rhpct=0,seekpct=100
wd=rs_80dr,sd=(sd1-sd80),readpct=100,rhpct=0,seekpct=0
wd=rwm_80dr,sd=sd*,readpct=50,rhpct=0,seekpct=100
rd=default
###Random Read and writes tests varying transfer size
rd=default,el=30m,in=6,forx=(4K),forth=(32),io=max,pause=20
rd=run1_rm_80dr,wd=rm_80dr
rd=run2_wm_80dr,wd=wm_80dr
rd=run3_rwm_80dr,wd=rwm_80dr
###Sequential read and Write tests varying transfer size
rd=default,el=30m,in=6,forx=(512k),forth=(32),io=max,pause=20
rd=run4_rs_80dr,wd=rs_80dr
rd=run5_ws_80dr,wd=ws_80dr