Sunday, June 16, 2013

how to increase the queue depth on the vio client


To change the queue_depth on the hdisk device:

To change the queue depth values, the hdisk should be free from I/O operataions. So


Script to perform FTP in background


Usually to transfer files from Fix Central to the servers, while downloading to your server it takes lot of time, so during this period we should make sure your network not to disconnect.

To avoid this problem, we can use a script to run this file transfer in background so that, there will be no need for us to be attentive towards the ftp transfer.


Here is the scripttttt


How to delete a file using inode

If the part of file name has some invalid charecters then we may face difficulty in deleting that file, so the best option to delete the file would be using inode number.

Below is the command for the same:

 # find /directory -inum [inode-number] -exec rm -i {} \;


 


dlpar not working between from hmc


Usually, if DLPAR fails due to below reason, its always problem with the rmc connection, which depends on RSCT daemons.

Error :

"A RMC network connection to the partition is not present. Verify the network settings on the partition and the HMC. If you select OK you will have to restart the partition for the resource changes to take effect."


find oslevel of the clone rootvg


We usually know how to find the oslevel of a server, but if we want to find the oslevel of the cloned rootvg that exists in the disk, then its very simple.

Using the below blvset command, you can find the oslevel in the clone vg/disk.


How to list files in alphabetical order in a directory


We know how to list the files by sorting with time, and using long list options, but anyone knows how to list based on the alphabetical order.

Here is the simple command to do that :


Saturday, June 15, 2013

B700F120 LED server hung


AIX server migrated from AIX5.3 to AIX6.1 on 9117-mmb frame and the server hangs at the LED B700F120


B700F120

B700F120

Explanation

Platform firmware detected an error

 

Response

The platform is unable to support the requested architecture options requested by the operating system via ibm,client-architecture-support interface.

 

Solution

6100-01 is not supported on a 9117-mmb. So if installing the AIX operating

IBM Tivoli Storage Manager (TSM)

  TSM downloads and TSM commands
 All the TSM client downloads can be performed using the below IBM link:

http://www-01.ibm.com/support/docview.wss?uid=swg24027432

SSA storage picture AIX


Below you can see the SSA disks that are attached to the P series server.


Friday, June 14, 2013

Command to find vhost and vio server name from the client server


In order to find the VIO server name and the vhost details of a particular client from the client server itself, below command can be helpful.


# echo cvai | kdb | grep -i vscsi


Perform NIM operation without booting nim client machine to SMS mode:

Perform NIM operation without booting machine to SMS mode:

If you have any confusion or problem in finding out the ethernet adapter to select during the migration or any operation where you need to select the adapter for performing ping test or to start the installation through network, you can use the below command.