Discussion about speed and observation

[netsyphon]

PS - me too..

[vkeven]

Finally I put 5GB of RAM in my server but the same problem happen so I delete my iscsi target , deleted my iscsi volume , recreate every thing from scratch , used internal Dell Raid on 280GB target in Basic and GPT , used 2TB volume size on Xraid in Basic Disk and GPT, used 2.5TB in GPT and I could not reproduce the problem so the only options that I did'nt test was the initialize when you create an ISCSI volume, as soon as I recreated a volume with initialize fonction TADA problem come back , I created a 8GB volume with initialize function turn on and from this point my target become sluggish and irregular when I used it , if I create a volume without initialize everything is working like is suppose to so now I don't know where to look at

[vkeven]

It's look like I'm talking with myself ( Yes I admit that I'm a little crazy)


Ok now I have 2 volume with ISCSI target both locate on my AppleXraid over fiber

1 x 8GB with initialize and 1 x 8GB without initialize both are mount on windows 2003 with MS ISCI initiator ( I tried also with startport ) one is Hnot initialize) and one is Ginitialize) , if I copy on G: its become sluggish during copy and windows go from 40s to 2min to 40s to 1M for evaluation copy time, if I used H: windows write 45s and it take 35s to 40s steady.

Suggestion,does initialize is really need?what is initialize exactly , I can probably look into source code but I would like obtain some feedback from Open-E

[vkeven]

OK now I think that initialize fonction is not working properly or at least its causing some slownness issue , I retry my test above with internal dell 280gb raid 5 ( 5gb initialize and 5 gb not initialize ) same result initialize = slow and sluggish . Oh good , my customer badly need his new storage server and think that I would need to go with SAN/IQ from lefthand

[To-M]

And the Price will go up $$$$$ big time (DSS $1250.00 USA and SAN/IQ 20x that amount). I have some info for you on your tests and some of your questions but you are in 10GB speed mode .

Can you send me logs from the DSS and are you using the Demo-CD version 1.23?
If so email me so I can give you the FTP access for a different version.

If you are using the USB then email me so I can give a special version that should change your stats

Email: todd.maxwell@open-e.com

[vkeven]

And the Price will go up $$$$$ big time (DSS $1250.00 USA and SAN/IQ 20x that amount). I have some info for you on your tests and some of your questions but you are in 10GB speed mode .

Can you send me logs from the DSS and are you using the Demo-CD version 1.23?
If so email me so I can give you the FTP access for a different version.

If you are using the USB then email me so I can give a special version that should change your stats

Email: todd.maxwell@open-e.com

Money is not the point here ( I just sent you a PM about that ) , customer that play with 16TB of data in general have enough money to buy from lefthand or isilon or any other big player but I prefer to put my money into and more human company.

I used 1.23 Demo and I'm already having FTP access so just point me into right folder

[netsyphon]

hmm.. ill do similar tests with the init and non-init and see what i get.

also, maybe you could use iozone for benchmark data?

my command is as follows:
iozone -Razb c:\pro1000mt_test_9650se-wbcache-ncq-softinitiator.xls -f G:\tesfile.lo1


maybe open-e engineers can give us a baseline of what we should expect with performance? personally i want to be able to saturate my ethernet before i saturate my disks but it seems i cant saturate either!

[vkeven]

hmm.. ill do similar tests with the init and non-init and see what i get.

also, maybe you could use iozone for benchmark data?

my command is as follows:
iozone -Razb c:\pro1000mt_test_9650se-wbcache-ncq-softinitiator.xls -f G:\tesfile.lo1


maybe open-e engineers can give us a baseline of what we should expect with performance? personally i want to be able to saturate my ethernet before i saturate my disks but it seems i cant saturate either!

The best speed I can reach with one gigabyte link was 65MB/s writing and 60MB/s reading but apple xraid could nod permit more than that with only one fiber connection so I'm happy with that , the thing that I miss in Open-E is a built-in benchmark for connection between drive and Open-E server , with this thing we could be able to know if the problem come from network or physical connection and also evaluate which speed we can expect from our system before doing ISCSI and/or FC Target , less problem and more happy camper. Open-E?

[To-M]

Then by all means SPEND away - love to see cost at the end of the day beyond that 16TB. LeftHand is a great product and how do we know this , we just have good friends their .

Anyway go to the /DEMO-CD/DSS_ver_1.23/InEngineeringPhase and test.

But I would like for you both to wait until next week for 1.30 of the Demo-CD, then run your tests. 1.30 finial release for USB will be tomorrow or Monday.

Any way you can send log file??

[vkeven]

And the Price will go up $$$$$ big time (DSS $1250.00 USA and SAN/IQ 20x that amount). I have some info for you on your tests and some of your questions but you are in 10GB speed mode .

Can you send me logs from the DSS and are you using the Demo-CD version 1.23?
If so email me so I can give you the FTP access for a different version.

If you are using the USB then email me so I can give a special version that should change your stats

Email: todd.maxwell@open-e.com

I can't find where to view that log