Booting Solaris System With A 32 Bit Or 64 Bit Kernel
# 1 For 64 bit
# eeprom boot-file=”/kernel/sparc9/unix
or
OK printenv boot-file
OK settenv boot-file kernel/sparc9/unix
LDOM Virtulaization
You have heard about this word "virtualization" now days in the IT world. Logical domains (LDOM) is one of the para virtualization available with the Sun Sparc T1 and T 2 systems(Sun4v). You can follow these simple steps to create your logical domains on your T1 and T2 systems ... Read More
Veritas Failover Cluster
Well, I was lucky to have this exposure at a very early age. This is one of my first cluster built supporting oracle application on a 2 x node failover cluster. Later, I came up with the DR site consisting of a similar built setup. And then the global cluster ... Read More
Oracle Kernel Parameters
Many of us get the task of resource parameter settings for oracle and there is a lot of confusion with the settings herein. I have been observing it for the past 2-3 weeks. I just thought of putting up some facts here for better understanding the issue how the kernel parameter settings should be taken up ... Read More
Cluster System States
This is one of the most important document I ever understood. Helps tremendously in troubleshooting veritas cluster states. It systematically identifies the state you are in and elaborates upon the state transitions available ... Read More
Online Subnet Calc
Work with Online Subnet Calculator. Why leave it to network guys when as a system administrator you can identify whats blocking your traffic. Calculate Network Number from the Subnet ID field, generally used in /etc/netmasks ... Read More
Sol 9 To Sol 10 Upgrade: vxspec, vxdmp, vxio Warnings
Console Errors:
Nov 16 16:30:02 2009 WARNING: VxVM vxspec V-5-0-0 vxspec: vxio not loaded. Aborting vxspec load
Nov 16 16:30:02 2009 /kernel/drv/sparcv9/vxdmp: undefined symbol 'romp'
Nov 16 16:30:02 2009 WARNING: mod_load: cannot load module 'vxdmp'
Nov 16 16:30:02 2009 /kernel/drv/sparcv9/vxio: undefined symbol 'romp'
SAN Migration
Ok! This does not cover the whole process of SAN to NAS Migration. But I wish to cover a basic concept regarding taking backups. Pretty small thing if you are aware of the concept, but startles novices many a times.
Task: There are 3 File Systems on SAN Disks.
/ora
/ora/u01
/ora/u02
Transfer this data to NAS Disks.
Task: There are 3 File Systems on SAN Disks.
/ora
/ora/u01
/ora/u02
Transfer this data to NAS Disks.
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