Subject: Re: [vserver] Fixed -> Re: [vserver] Hard time with IO bottleneck
From: Markus Fischer <markus@fischer.name>
Date: Mon, 11 May 2009 22:05:43 +0200

Hi,

Jon Bendtsen wrote:
> On 08/05/2009, at 08.00, Markus Fischer wrote:
>> it's been *quite* a while, however just for the record, I was able to
>> fix this issue.
>>
>> The RAID controller, a "LSI Logic / Symbios Logic SAS1068 PCI-X
>> Fusion-MPT SAS", had by default "write caching" disabled.
>>
>> Once enabled, the throughput jumped from 5MB/sec to 25MB/sec ....
>>
>> Here's the complete story of my tragedy:
>> http://serverfault.com/questions/1276/severe-write-performance-problem
> 
> "This site is currently in private beta testing.
> If you've been contacted about the beta, please make sure you have
> cookies enabled and enter your credentials below to proceed. "

Darn, that's embarrassing! I got so accustomed to it, I forgot that
fact. Just in case someone is interested and got an StackOverflow
account, more information about the private beta can be found here:

http://blog.stackoverflow.com/2009/04/server-fault-private-beta-begins/

sorry,
- Markus