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Starting in DB2 V9.1 when you create a database, automatic storage tablespaces are created by default. Therefore, users may unknowingly create an “automatic storage database” when they first create the database. When the database is backed up with the intention to restore it under a new instance or on another server, users maybe unaware of […]

Oracle Application Server 10g Installation.pdf Original post blogged on b2evolution.

If you suspect that hardware problems are the reason for errors in your installation, analyze the system log. To do this, enter the command:errpt -a | more Original post blogged on b2evolution.

To mount directories via NFS from the host on which the central instance runs, log on as user root and proceed as follows:On the host on which the main instance runs:1. Enter the command:/usr/sbin/share2. Edit the file /etc/dfs/dfstab to add file systems shared via NFS:vi /etc/dfs/dfstabAdd the following line for each file system, for example:share

To export directories via NFS, perform the following steps (the following assumes that the central instance host is the NFS server):1. Log on as user root to the NFS server.2. Make sure that your host is configured as NFS server by making sure that the output of the command chkconfig –list nfslooks like:nfs 0:off 1:off

The following is an example of increasing the size of a Storage LUN that has an ext3 file system on it. When performing operations like this, perform a backup of the file system first. (The system used for this example is running Red Hat Enterprise Linux Server release 5 (Tikanga), kernel version is 2.6.18-8.el5PAE and

prtvtoc Utility prtvtoc prints the content of the VTOC (volume table of contents). It displays the start/stopcylinder, the size of the partition and the mounted directory. Execute prtvtoc as follows:1. Log on as user root.2. Enter: /usr/sbin/prtvtoc -s <rawdevice> Solaris does not allow track zero on the disk to be part of the raw device

1. Determine the size of the installed RAM with the command:vmstat -P | head -22. Determine the allocated swap space with the command:/usr/sbin/swapon -s3. Determine the required size of the swap space.You can find the minimum swap space requirement in the installation documentation insection Hardware and Software Requirements Check.If possible, you should use an entire

Checking the UNIX Kernel You can check the UNIX kernel with the following UNIX commands: sysconfig -q ipc sysconfig -q proc sysconfig -q vm Compare the output of these commands with the values in the list below. Corrections of the kernel parameters are published in the installation notes. These notes contain the most recent information