I recently had the chance to create some diskgroups on an Exadata box outside the standard installation procedure, while this is not necessarily Exadata specific, I thought the technique of using ASMCA silently on the command line to create the diskgroups was sufficiently novel for a short blog posting. If for nothing else but to remind myself on how to do this in future.
This example uses the disks presented from a quarter rack exadata system and creates a diskgroup called DATA01:
Recently we had a node crash of one node in 3-node 220.127.116.11 RAC database configuration.The alert log showed - Thu Apr 26 00:15:16 2012 Hex dump of (file 488, block 345039) in trace file /u01/oradiag/diag/rdbms/matrix_adc/matrix3/trace/matrix3_dbw1_16218.trc Corrupt block relative dba: 0x7a0543cf (file 488, block 345039) Bad header found during preparing block for write Data in bad
Database Replication has a reputation for being notoriously difficult to setup and administer, but we’d like to show you another way. This brief video overview demonstrates (in the same amount of time it will take for you to enjoy a quick coffee), how simple it is to set up Oracle active-active (2-way) replication, using Dbvisit [...]
If anyone is expecting email from me any time in the near future, you may have to hold your breath.
In a staggering feat of customer relations BT (British Telecomms), or Yahoo acting on their behalf, has managed to introduce random blocks to any email I send out. At present I have something like a 30% chance of email being blocked by their smtp servers with reports like the following:
Dbvisit Replicate version 2.3.10 has been released with a number of new features which were requested by customers and some bug fixes. The changelog for Dbvisit Replicate 2.3.10 is: Setup wizard now defaults to use INADR_ANY (0.0.0.0) for listen interfaces, thus making dbvrep processes listen on all network interfaces Added directory for dp import Check [...]
Oracle Database Appliance is an “always on” database system. It does not have to go down if a component fails. Component failures are accounted for and the configuration is built with redundancy and single point of failures in mind. Further, it is a very simple system to deploy and operate.
Even a couple of years ago, if you were building and deploying an Oracle RAC database system, which is basically a highly available database environment, you would start with careful planning and then assemble all the components - the servers, the storage, the networking components from various vendors, and you would connect them together.
Pythian is excited to announce that Heidi Hauver, Pythian’s Director, HR, has been named as one of the recipients of the Ottawa Business Journal’s prestigious Forty Under 40 Award! The annual awards program recognizes accomplished industry leaders who are under the age of 40. The awards are co-hosted by Ottawa Business Journal and the Ottawa [...]