Apparently i hit a character limit in the first post... Here is the rest of it.

Batch two of testing;

Well I have some odd numbers again... what a surprise :mad:


12 disk strip with no expander, HBA and 4 onboard.
[CODE]
10Gb Read

IO Summary:      23308 ops, 384.6 ops/s, (385/0 r/w) 384.6mb/s,   1206us 
cpu/op,   2.6ms latency

IO Summary:      30464 ops, 502.7 ops/s, (503/0 r/w) 502.7mb/s,   1236us 
cpu/op,   2.0ms latency

IO Summary:      42361 ops, 699.0 ops/s, (699/0 r/w) 698.9mb/s,   1237us 
cpu/op,   1.4ms latency
[/CODE]
[CODE]
20Gb write

IO Summary:      22536 ops, 367.4 ops/s, (0/367 r/w) 367.4mb/s,   2964us 
cpu/op,   2.7ms latency

IO Summary:      23541 ops, 383.4 ops/s, (0/383 r/w) 383.4mb/s,   2933us 
cpu/op,   2.6ms latency

IO Summary:      22517 ops, 368.2 ops/s, (0/368 r/w) 368.2mb/s,   2899us 
cpu/op,   2.7ms latency
[/CODE]


8 disk stripe HBA Only

[CODE]
10GB Read

IO Summary:      38464 ops, 634.7 ops/s, (635/0 r/w) 634.7mb/s,   1262us 
cpu/op,   1.6ms latency

IO Summary:      42610 ops, 703.1 ops/s, (703/0 r/w) 703.1mb/s,   1235us 
cpu/op,   1.4ms latency

IO Summary:      44781 ops, 739.0 ops/s, (739/0 r/w) 738.9mb/s,   1226us 
cpu/op,   1.3ms latency
[/CODE]
[CODE]
20Gb write

IO Summary:      20135 ops, 328.1 ops/s, (0/328 r/w) 328.1mb/s,   4060us 
cpu/op,   2.9ms latency

IO Summary:      19452 ops, 318.6 ops/s, (0/319 r/w) 318.6mb/s,   4281us 
cpu/op,   3.0ms latency

IO Summary:      19449 ops, 317.9 ops/s, (0/318 r/w) 317.9mb/s,   3751us 
cpu/op,   3.0ms latency
[/CODE]


The first read/wright were done one after the other.  Then the second two reads 
(for both sets of tests) were done back to back after destroyign the test file.

When running the 12 disk test with the 4 extra drives running off the onboard 
ports I noticed some very odd LED activity...  the 4 drives that were onboard 
would stop accessing every few seconds for a couple seconds... than about a 
second after the HBA controlled drives would stop...  Im going to assume the 
onboard controller just sucks.

Looking at the 8 drives off just the HBA the read speeds are acceptable... 
~80-90MB/s per drive.... wich is the numbers I was expecting.

The write speeds on the other hand have me baffled :(

I think im going to post a copy of this thread over on the opensolaris forums 
because I must be missing/forgetting something major here  :confused:


Sorry if some of this is lacking flow like I said its mostly copy paste but all 
the critical information is in here.

I will be connecting all the drives back up to the expander and testing under 
Server 2008 R2 tonight to make sure its not a hardware issue, but im pretty 
sure the issue lies in Opensolaris somewere.

Thanks in advance.
-- 
This message posted from opensolaris.org
_______________________________________________
storage-discuss mailing list
storage-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/storage-discuss

Reply via email to