[CentOS] removing inaffective SAN partitions from the system .....

Mon Apr 19 04:09:43 UTC 2010
Jagan Kommineni <Jagan.Kommineni at ludwig.edu.au>

Dear All,

     I have installed CentOS release 5.2 (Final). EMC SAN partition is mounted by using EMC Powerpath for resolving multiple paths. I was able write and read data over to SAN partition without any issues.

     Subsequently I have unmounted EMC SAN partition from the system and deleted LUN using Navisphere user interface. After rebooting system, I still see SAN mappings in system.

Here is the affected partition mappings ....

cat /proc/partitions
major minor  #blocks  name
   8    16    1048576 sdb
   8    48    1048576 sdd
   8    80    1048576 sdf
   8   112    1048576 sdh

When I try to print information using parted, I am getting the following information ....
#parted /dev/sdb
GNU Parted 1.8.1
Using /dev/sdb
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print                                                           
Error: Unable to open /dev/sdb - unrecognised disk label.                

I would like to get rid of partition mappings from the system. Anyone has any solution for this problem please.   

with regards,

Dr. Jagan Kommineni
Ludwig Institute for Cancer Research

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