Creating RDM to LUN (SAN) mapping on VMware ESX 4, Vcenter.

August 6, 2010
By Andrew Lin

In the past I have written articles about how to create a RDM to LUN disk mapping for VMware ESX 3. http://www.gamescheat.ca/2009/10/scripts-to-automate-the-process-of-identifying-and-compiling-an-rdm-to-lun-mapping-list-for-vmware-esx-30/ and http://www.gamescheat.ca/2009/10/how-to-identify-and-compile-an-rdm-to-lun-mapping-list-for-vmware-esx-30/ The procedure to identify the path for the RDM (raw disk mapping) to LUN (disk on SAN) on Vmware ESX 4 is different from Vmware Esx 3. There are a...
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Booting up Solaris 10 from a SAN replicated LUN on a different Sun SPARC server

July 9, 2010
By Andrew Lin

The quickest way to recover from a total disaster is to have some sort of replication implemented. There are two different methods of real-time replication, hardware and software. My experiences with software replication such as Symantec Veritas Volume replicator for AIX was not pleasing....
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How to get the network card speed in Solaris 9

May 12, 2010
By Andrew Lin

To determine the network card speed in Solaris 9 use the ndd utility. First list the NIC installed and active on the Solaris 9 server. # ifconfig -a lo0: flags=1000849 mtu 8232 index 1 inet 127.0.0.1 netmask ff000000 hme0: flags=1000843 mtu 1500 index 2...
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How to relocate the /export and /export/home filesystems on Solaris 10.

April 8, 2010
By Andrew Lin

By default Solaris installs the /export and /export/home filesystems in the root zfs pool, if you picked ZFS and not UFS as the filesystem. I wanted to relocate /export and /export/home to a larger ZFS pool other than the root pool as I wanted...
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How to rebuild a Solaris 10 server using the ZFS Root Pool Snapshots

March 12, 2010
By Andrew Lin

Solaris 10 has provides the ability to recover from a disk drive failure using ZFS root pool snapshots. The snapshot can also be used to quickly rebuild a new server in the event of a disaster. Snapshot is different from flash archive which can...
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Changing the default boot device on a Sparc server

March 2, 2010
By Andrew Lin

You can display and change the default boot device on a SUN Sparc server from the eeprom console. List the bootable devices with the devalias command, ok devalias cdrom /pci@0,600000/pci@0/pci@0/scsi@0/disk@4,0:f net /pci@0,600000/pci@0/pci@1/pci@0/network@4 disk /pci@0,600000/pci@0/pci@0/scsi@0/disk@0 name aliases List the current boot device. ok printenv boot-device...
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How to list the status of swap in Solaris

February 26, 2010
By Andrew Lin

List the status of all swap areas. # swap -l swapfile dev swaplo blocks free dev/dsk/c0t0d0s1 32,9 16 8425712 8425712 The output has five columns: path The path name for the swap area. dev The major/minor device number in decimal if it is a...
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How to change the IP address in Solaris 10

February 25, 2010
By Andrew Lin

Here is a list of files that you need to edit when changing the IP address of an interface in Solaris 10. /etc/hosts /etc/hostname.interface-name /etc/nodename /etc/defaultrouter /etc/resolv.conf /etc/netmasks Add the ip address and server name to the host file. vi /etc/hosts 10.0.0.10 server-name Select...
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How to configure Samba on Solaris 10

February 11, 2010
By Andrew Lin

If you need to find the version of Samba installed on the Solaris 10 server use the command smbstatus. # /usr/sfw/bin/smbstatus Samba version 3.0.35 PID Username Group Machine ——————————————————————- 1962 andrew users mypc (162.10.21.100) Service pid machine Connected at ——————————————————- IPC$ 1962 mypc Thu...
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Got my site added to DMOZ

February 3, 2010
By Andrew Lin

Yahoo, it only took four to five tries over a span of four years to get Games Cheat successfully added to DMOZ. I last submitted my site to DMOZ about 5 months ago and forgot about it. I was pleasantly shocked when I was...
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Using grep/egrep to find out which file contains a word or string in Unix or Linux

February 2, 2010
By Andrew Lin

If you need to find out which file in a directory contains a specific word then the grep command is your friend. Here is an example, if you wanted to find out which file in the directory /home contains the word groundhog. grep –i...
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Success, failure of the tar command recorded with time and date stamp

January 27, 2010
By Andrew Lin

I needed to determine the amount of time it would take to archive large amount of data on my unix server. If I had infinite amount of free time I could sit in front of the screen with a stop watch. But the better...
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How to delete a file or directory with special characters using the inode in Unix or Linux

January 22, 2010
By Andrew Lin

My fat fingers inadvertently created a directory on my unix server with special characters. I could not access this directory nor could I delete it. When I listed the directory using the command ls –b, I could see all the funny characters. ls –b...
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Cheat Codes for Warcraft III

January 21, 2010
By Andrew Lin

Tired of getting slaughtered by the computer, use the cheat codes. My favourite one is GreedIsGood (not case sensitive). To activate a code simply press the enter key, type in the code (and the option if avaiable), and hit enter again. You should then...
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How to change the hostname in Solaris 10

January 21, 2010
By Andrew Lin

To change the hostname in Solaris 10 you need to edit 3 files and appply the new name. /etc/nodename /etc/hostname.*interface, e.g. hostname.bge0 /etc/inet/hosts this file is a hard link to /etc/inet/ipnodes. You will need to make /etc/inet/ipnodes writable before editing it. To enable write...
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