RSINFOMINDS: 25 Mar 2011

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RSInfoMinds, a web based IT Training and Consultancy firm. It is established with high dreams in training people in IT Infrastructure Field. We provide Online and Class Room training in various fields of IT Infrastructure Management.

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Redhat Linux Admin Redhat Linux Cluster

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HP Unix Virtualization Shell Scripting

Veritas Volume Manager Veritas Cluster

Oracle Core DBA VMWare

We provide training in such a way, So that you get in depth knowledge on the Courses you look for.

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Friday 25 March 2011

System Dump

System Dump Device is used for Crash Recovery.

By default /dev/hd6 is assigned for Dump.

Steps to create a dump device:

1) Estimate the amount of size required to create a dump device:

# sysdumpdev -e

The output is shown in bytes.

2) Check the free PP's available in rootvg.

# lsvg rootvg

Determine about PP's required to create dump device.

3) Check the PV's in the rootvg

# lsvg -p rootvg

Select the PV which is having more free PP's to create dump device.

4) Create a dump device.

# mklv -y dump_device -t dump rootvg PP's PV

5) Check the dump device

# lsvg -l rootvg

6) Initialzie the Dump

# sysdumpdev -K

7) Assign the dump device as a primary dump device

# sysdumpdev -Pp /dev/dump_device

8) verify the dump device

# sysdumpdev -l