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This Is A Custom Widget

This Sliding Bar can be switched on or off in theme options, and can take any widget you throw at it or even fill it with your custom HTML Code. Its perfect for grabbing the attention of your viewers. Choose between 1, 2, 3 or 4 columns, set the background color, widget divider color, activate transparency, a top border or fully disable it on desktop and mobile.

RAC

/Tag:RAC

What happens if I lose my voting disk(s)?

By | February 2nd, 2014|Database, Oracle – RAC, Oracle DBA|

If you lose 1/2 or more of all of your voting disks, then nodes get evicted from the cluster, or nodes kick themselves out of the cluster. It doesn't threaten database corruption. Alternatively you can use external redundancy which means you are providing redundancy at the storage level using RAID. For this reason when using [...]

What is voting disk and used for?

By | February 1st, 2014|Database, Oracle – RAC, Oracle DBA|

A voting disk is a backup communications mechanism that allows CSS daemons to negotiate which sub-cluster will survive. These voting disks keep a status of who is currently alive and counts votes in case of a cluster reconfiguration. It works as follows: a) Ensures that you cannot join the cluster if you cannot access the [...]

How to use VLANs in Oracle RAC?

By | September 29th, 2013|Oracle – RAC, Oracle DBA|

It is Oracle's standing recommendation to separate the various types of communication in an Oracle RAC cluster as much as possible. This general recommendation is the basis for the following separation of communication: Each node in an Oracle RAC cluster must have at least one public network. Each node in an Oracle RAC cluster must [...]

Oracle Single Client Access Name (SCAN)

By | September 3rd, 2013|Oracle – RAC, Oracle DBA|

Single Client Access Name (SCAN) is a single name that allows client connections to connect to any database in an Oracle cluster independently of which node in the cluster the database (or service) is currently running. The SCAN should be used in all client connection strings and does not change when you add/remove nodes from [...]