The Read performance of a Disk can be improved by increasing a parameter called “Read+Ahead” using ‘blockdev’ command.
This is for oracle database 10g, in 11g the table is prebuilt with another name SELECT METRIC_LABEL, T.COLUMN_LABEL, T.ALERT_STATE, T.MESSAGE, T.COLLECTION_TIMESTAMP FROM SYSMAN.MGMT$ALERT_CURRENT T
You can use any one of the following methods to change the hostname and/or ip-address on RedHat related distributions.
Ever spin up a database for some quick and dirty work, and you JUST WANT TO CONNECT (!!) without going through the whole ‘add the service to your local TNSNames.ORA’ rigmarole (Oracle Net Configuration Assistant)?
These are full-featured open source software products, free as in beer and speech that I started to use recently.