Discovered something, you can get weird behaviour on oracle R11.07 rac if you have system on a slower filesystem. we have discovered that a LUN confugured with a slower SYSTEM tablespace gave the database funny behaviours. And of course gave R12.1 funnier behaviours. Transactions not completing..select count(*) from obj took ten minutes etc. So, when you create a SAN be careful on how the file system is created, use RAD10 or RAID5 only (or others with stripping option).
Another hint, upgrade OCFS to latest version, but be warned ocfs version must be same as the kernel version. uname -a for kernel version and rpm -qa | grep ocfs for ocfs.
good luck..it took us ages to get that one right.
Thursday, February 3, 2011
Sunday, July 11, 2010
Struggling.

I am having a hard time getting through the baroque cycle. Don't get me wrong, they are very good but i am having a hard time visualizing the reformation period with the london i know. Next stop will be boston..
Subscription.
I am kinda sad that the times has to be subscribed to. I know i was enjoying a free ride but the paper is worth it. i might consider a full fledged subscription at a later stage.
Saturday, August 1, 2009
ERP.
haha, haha, Finally, we are rocking with that major project we were all working on. It is a very complex beast, which ultimately will rest with the users. Even the architecture of the product is complex. Boy, i miss the simple database and vb client solution!! That enterprise scenario consists of database, application server, web server, load balancer, mobile server,datawarehouse.. The good news, is that we are using linux albeit oracle flavor as the core apps...
Sunday, March 29, 2009
Cornficker -- aka Configure.

It was love at first sight. It has been some time that i have not gone through the code of some badass malware. Cornficker, has been brilliantly written and designed. But make not mistake, this baby probably can bring the whole net on its knees with a couple of keystroke probably coming from germany or eastern europe. I was particularly impressed by the fact that these guys are cutting edge with encryption..They are using md6..dude, and it is not even ratified. the peer to peer is a bit over my head at this stage, i will get a demo up and check the eco-system behavior.
Cisco VPN


Guys, i am having a lot of issue with the cisco 4.x vn client on vista. I have discovered a number of things.
we do not need a lot of item over ethernet adapter, 'bonjour' from apple obtained from itune is well damm bad.
vmware needs to be unassociated from the cisco vpn adapter
sometimes we need to repair the adpater which to be always in a disable mode.
several items have to be disable namely ipv5, vmware, etc..
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