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Full Discussion: SAN Disk Appearing double in AIX
Operating Systems AIX SAN Disk Appearing double in AIX Post 302845515 by ibmtech on Wednesday 21st of August 2013 03:48:02 PM
Old 08-21-2013
Ok,
Aliasing is nothing but giving a name to your WWPN's, as you can see there are many WWPNS already configured. If you have to remove a set of WWPN's from a particular system without Alias you have to navigate all through. But, if you define an Alias you can directly go to that system and cross verify the WWPN's and do the operation.

Zoning is mapping those WWPN's to your SAN (using switch port).

The best practice always is to take a backup/snap shot, we call it CLONE here, do the cloning 1st and then proceed with below steps. If things go awry, you just have to reactive the clone and you are back to the point you cloned it.

Now, you will create an Alias (hostname and WWPNS)
Then you zone it (WWPN ot Switch port).
Then you activate it.
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LEARN ABOUT CENTOS

ktutil

KTUTIL(1)							   MIT Kerberos 							 KTUTIL(1)

NAME

       ktutil - Kerberos keytab file maintenance utility

SYNOPSIS

       ktutil

DESCRIPTION

       The  ktutil  command  invokes  a  command interface from which an administrator can read, write, or edit entries in a keytab or Kerberos V4
       srvtab file.

COMMANDS

   list
	  list

       Displays the current keylist.

       Alias: l

   read_kt
	  read_kt keytab

       Read the Kerberos V5 keytab file keytab into the current keylist.

       Alias: rkt

   read_st
	  read_st srvtab

       Read the Kerberos V4 srvtab file srvtab into the current keylist.

       Alias: rst

   write_kt
	  write_kt keytab

       Write the current keylist into the Kerberos V5 keytab file keytab.

       Alias: wkt

   write_st
	  write_st srvtab

       Write the current keylist into the Kerberos V4 srvtab file srvtab.

       Alias: wst

   clear_list
	  clear_list

       Clear the current keylist.

       Alias: clear

   delete_entry
	  delete_entry slot

       Delete the entry in slot number slot from the current keylist.

       Alias: delent

   add_entry
	  add_entry {-key|-password} -p principal -k kvno -e enctype

       Add principal to keylist using key or password.

       Alias: addent

   list_requests
	  list_requests

       Displays a listing of available commands.

       Aliases: lr, ?

   quit
	  quit

       Quits ktutil.

       Aliases: exit, q

EXAMPLE

	      ktutil:  add_entry -password -p alice@BLEEP.COM -k 1 -e
		  aes128-cts-hmac-sha1-96
	      Password for alice@BLEEP.COM:
	      ktutil:  add_entry -password -p alice@BLEEP.COM -k 1 -e
		  aes256-cts-hmac-sha1-96
	      Password for alice@BLEEP.COM:
	      ktutil:  write_kt keytab
	      ktutil:

SEE ALSO

       kadmin(1), kdb5_util(8)

AUTHOR

       MIT

COPYRIGHT

       1985-2013, MIT

1.11.3																	 KTUTIL(1)
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