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тАО02-21-2008 05:18 AM
тАО02-21-2008 05:18 AM
DL140 G3 performance
We are running the same applications on both of them (a web application with a SQL backend), but the performance of both of these new servers is very poor. Some processes are taking 5 or 6 times longer to run then they did on the 4 year old servers they've replaced. Even without our applications running, the general performance of the machines (navigating through Windows Explorer etc...) seems to lack the 'spark' of our other servers.
We've installed 2 500GB Seagate Barracuda (ST3500320AS) SATA drives in each server, connected to the LSI SAS 1068 controller.
Should these drives be OK in this machine? I don't really know where to start diagnosing the problem. Any help or pointers greatly appreciated.
Thanks.
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тАО02-21-2008 05:30 AM
тАО02-21-2008 05:30 AM
Re: DL140 G3 performance
you can update the controller firmware :
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=15351&prodSeriesId=1842838&prodNameId=3285485&swEnvOID=1005&swLang=8&mode=2&taskId=135&swItem=MTX-82d363aa4fde4ab9852b87fea0
update the controller driver :
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=15351&prodSeriesId=1842838&prodNameId=3285485&swEnvOID=1005&swLang=8&mode=2&taskId=135&swItem=MTX-228fa3af476543678136e0535a
You have connected SATA HDDs to the SAS controller. On this controller the Drive write cache can't be enabled, there is no Battery Backed Write Cache option, so there is not much you can do to improve the performance.
You can update the MS storport.sys driver
which playse important role in the performance too and fixes bugs :
http://support.microsoft.com/kb/941276
I think this is the latest version out there.
Pac
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тАО02-21-2008 06:28 AM
тАО02-21-2008 06:28 AM
Re: DL140 G3 performance
Will updating the controller firmware really make that much difference? I always get nervous updating firmware due to the potential for disaster, but if it's going to make a noticeable difference I will do.
As far as I'm aware, we have no choice but to install SATA drives in these machines without getting an additional SCSI controller, so presumably the server is meant to be used with SATA drives. I just don't understand why the machines seem to be slower than the other DL140s (dual core / 2GB memory with similar drives) that we have.
What would most people normally do? Should we go for a RAID configuration?
Thanks.
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тАО02-21-2008 06:53 AM
тАО02-21-2008 06:53 AM
Re: DL140 G3 performance
yes the drives are supported from the controller :
500GB SATA 7,200 rpm
Up to 2
Position supported - 1 & 2
HP Internal SAS HBA with RAID
About the controller frimware- it is the most important for performance...
What do other people do - make RAID of course. It brings performance and RAID tolerance. Since you have only 2 disks you can make RAID 0 for read/write performance
and RAID 1 for less disk space, faster read performance and fault tolerance, but it depends on your environment
Pac
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тАО02-22-2008 03:05 AM
тАО02-22-2008 03:05 AM
Re: DL140 G3 performance
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тАО02-22-2008 03:12 AM
тАО02-22-2008 03:12 AM
Re: DL140 G3 performance
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тАО02-27-2008 02:06 AM
тАО02-27-2008 02:06 AM
Re: DL140 G3 performance
What is the point of this SAS controller if it makes the performance so much worse?
Thanks.
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тАО03-24-2008 10:54 PM
тАО03-24-2008 10:54 PM
Re: DL140 G3 performance
We also have the same problem on our 6 DL140G3 servers. I've upgraded drivers and firmware to the latest from this site, but it made no difference.
So I investigated...
If you read anything from this controller - everything is ok, fast speed.
But when you try to write anything - its gonna take about 30 minutes to copy 100Mb file...
So I think, the problem is in write caching of LSI controller. Even if you switch it off in drivers (FreeBSD), the controller will continue to think that the BBU is connected (or what?) and would not turn off write caching.
The problem is the same for Windows, FreeBSD and all other OSs, where LSI driver can be found.
HP, can you somehow push your programmers to solve this problem ? Its the problem of LSI controller firmware I suppose...
Thank you.
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тАО03-24-2008 11:30 PM
тАО03-24-2008 11:30 PM
Re: DL140 G3 performance
If u had done the diagnostic i.e updated firmware, driver and storeport driver
still same issue.
kindly let me know how you are measuring the performance ?, which application you are using ?
what is the firmware release date of storage controller ?, when the performance is getting low in read or write process .
1 more thing is recommended that is system bios, update my following below link
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=15351&prodSeriesId=1842838&prodNameId=3285485&swEnvOID=1005&swLang=8&mode=2&taskId=135&swItem=MTX-3baf489ac801424198e6b2e73b
If possible then run off line diagnostic in 3 loops for entire h/w to isolate any h/w failure,capture survey report and share both report on my mail id .
if you want to raise this issue to HP then kindly log a case with them ask them to involve
L2 support for same , and kindly share the case id with me also on my mail id
amritranjan111@gmail.com
amritranjan111@hotmail.com
........Amrit
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тАО03-25-2008 01:00 AM
тАО03-25-2008 01:00 AM
Re: DL140 G3 performance
Other than updating the BIOS and drivers, I hadn't done any actual diagnostics or proper performance testing, it was simply that our application ran painfully slow on the new servers compared to the 3-4 year old machines they were replacing. A process which involved a lot of reading and writing to SQL databases took 5 or 6 times longer to run. Bypassing the SAS controller has brought the performance up to where it should be.
Having done some brief internet research on these controllers, it seemed that they are great for improving the performance of read operations (i.e. web servers and the like) but not good for write operations.
For now, until I have time to perhaps investigate further, we'll be leaving them as they are and just think twice before getting any more HP servers.
Thanks for your reply, Neil.