When I was researching this issue, I read lots of other people's claims. As I recall, it wasn't necessarily an issue of load, so although your test results look good, I wouldn't assume you don't have a problem. My server was under virtually no load when it locked up. I read people claiming that it would occur after only a few hours, but my server took about a month before it locked up.
Norman
------------------------------------------------------ Norman Elton Information Technology - Network Engineering College of William & Mary 757-221-7790 On Apr 7, 2004, at 1:47 PM, Tobias Speckbacher wrote:
Figured I'd make a new thread out of this. I realize this is the general RH list, but it seems this issue spans across multiple versions of RH Linux including the now or soon to be deprecated free versions.
----
For whatever its worth I tested one of my 2650's loaded with ES3 overnight. The system has the newest kernel available from the errata provided by Redhat (2.4.21-9EL).
What I did was:
while :; do dd if=/dev/zero of=test count=3000000 rm -rf test done
It creates a 1.5GB or thereabout file for me on my system, should you have a different FS blocksize the size will change.
Anyway the system stayed up all night and still is at it.
I figured if something is wrong with the aacraid driver/IO subsystem I
should see it after a while doing this test. Now I realize this doesn't
really take care of every case that can happen since this only tests
writes.
If anyone has a better idea on how to test the proper workings of a PERC
3/Di I'd appreciate your input.
-Tobias
-----Original Message----- From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Norman Elton Sent: Wednesday, April 07, 2004 5:41 AM To: General Red Hat Linux discussion list Subject: Re: Moving into Linux Enterprise- Doubts/questions
I used to have an issue with a 2650 running RH8, the system would completely hang after a certain amount of time.
This is exactly the issue I had. The system would just hang. It turned out to be a buggy aacraid driver (the adaptec RAID driver). I ended up getting a kernel patch from Adaptec.
I don't know if this is still an issue with the latest redhat releases, I suspect is probably still is. I would check the mailing lists on linux.dell.com (there's an aacraid-specific list).
It's a shame that a system that's RedHat certified, running an OS that's Dell certified, just doesn't work.
Norman
------------------------------------------------------ Norman Elton Information Technology - Network Engineering College of William & Mary 757-221-7790 On Apr 6, 2004, at 10:30 PM, Tobias Speckbacher wrote:
doI used to have an issue with a 2650 running RH8, the system would completely hang after a certain amount of time.
Installing an updated kernel, solved this issue for me. I am currently in the process of deploying 9 systems with RHES 3.0, 4 of which use the PERC 3/DI controller.
If anyone has confirmation that this is still an issue I'd appreciate the input.
-T
-----Original Message----- From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Bob Gorman Sent: Tuesday, April 06, 2004 12:54 PM To: redhat-list@xxxxxxxxxx Subject: Re: Moving into Linux Enterprise- Doubts/questions
RAID driver. If your server runs the Perc3/Di driver, you'll want toI installed RHEL 3 on a PowerEdge 2650, and had horrible times with thea little research before plunging into RHEL.PE2650
Can you be a little more specific? I have plans to upgrade somesystems (w/PERC3-DI) to RHEL3 very soon.
Indeed, I will install the latest system BIOS update, and the latest controller and back plane firmware updates, and install from the current RHEL3 Update 1 CD.
TIA for any insight you can share.
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