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Offloading production backups to a different storage array
For quite a while Oracle DBAs have performed split mirror backups using special devices called “Business Continuance Volumes” or BCVs for short. A BCV is a special mirror copy of a LUN on the same storage array as the primary copy. In a BCV backup scenario, the storage administrator (usually) “splits” the mirror after putting…
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A quick word of warning about database PSU 11.2.0.2.2
I am playing around with the Grid Infrastructure 11.2.0.2 PSU 2 and found an interesting note on My Oracle Support regarding the Patch Set Update. This reminds me that it’s always a good idea to search for a patch number on Metalink before applying a PSU. It also seems to be a good idea to…
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Pro Oracle Database 11g RAC on Linux is available for Kindle
Addmittedly I haven’t checked for a little while, but an email by my co-author Steve Show prompted me to go to the Amazon website and look it up. And yes, it’s reality! Our book is now finally available as a kindle version, how great is that?!? There isn’t really a lot more to say about…
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Testing NIC bonding on RHEL6
I have recently upgraded my lab’s reference machine to Oracle Linux 6 and have experimented today with its network failover capabilities. I seemed to remember that network bonding on xen didn’t work, so was curious to test it on new hardware. As always, I am running this on my openSuSE 11.2 lab server, which features…
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ASM normal redundancy and failure groups spanning SANs
Julian Dyke has started an interesting thread on the Oak Table mailing list after the latest UKOUG RAC and HA SIG. Unfortunately I couldn’t attend that event, I wish I had, and I knew it would be great. Anyway, the question revolved around an ASM disk group created with normal redundancy spanning two storage arrays.…
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Installing Oracle Linux 6 as a domU in Xen
Update: Please consider the context of the article-it was written in April 2011! The post refers to OpenSuSE 11.x, my current system uses OpenSusE 12.3 and the below problems of virt-manager appear to be solved. virt-manager however will perform similar steps as these under the covers. Introduction Despite all recent progress in other virtualisation technologies I…
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Summer Seminars
I am doing a couple of one day seminars with Oracle University, currently planned for Austria and Switzerland. They go by the title “Grid Intrastructure and Database High Availability Deep Dive”, and can be accessed via these links. Switzerland Austria To save you from having to get the abstract, I copied it from the Oracle…
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Copying the password file for RAC databases
This post is inspired by a recent thread on the oracle-l mailing list. In post “11g RAC orapw file issue- RAC nodes not updated” the fact that the password file is local to the instance has been brought up. In fact, all users with the SYSOPER or SYSDBA role granted are stored in the password…
