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Full Discussion: Reuse a LUN
Homework and Emergencies Emergency UNIX and Linux Support Reuse a LUN Post 302689379 by Shirishlnx on Tuesday 21st of August 2012 08:35:37 AM
Old 08-21-2012
Yes.. there's serviceguard cluster and each LUN (from HP Storage VA7110) having true copy and business copy ..

- Have check business copy is taken but is of 0MB size .. (AM not sure why..)

- Have added a LUN on Primary cluster server and are able to see the extended space in VG and both path ..

< ON Server-1 >
Code:
# strings /etc/lvmtab
/dev/vg00
/dev/dsk/c1t2d0
/dev/dsk/c2t2d0
/dev/vg01
/dev/dsk/c5t0d2
/dev/dsk/c5t0d3
/dev/dsk/c4t0d2
/dev/dsk/c4t0d3
/dev/dsk/c5t0d1
/dev/dsk/c4t0d1



# vgdisplay -v vg01
..
..
      --- Physical volumes ---
   PV Name                     /dev/dsk/c5t0d2
   PV Name                     /dev/dsk/c4t0d2  Alternate Link
   PV Status                   available
   Total PE                    5631
   Free PE                     0
   Autoswitch                  On

   PV Name                     /dev/dsk/c5t0d3
   PV Name                     /dev/dsk/c4t0d3  Alternate Link
   PV Status                   available
   Total PE                    5631
   Free PE                     1
   Autoswitch                  On

   PV Name                     /dev/dsk/c5t0d1
   PV Name                     /dev/dsk/c4t0d1  Alternate Link
   PV Status                   available
   Total PE                    5119
   Free PE                     1279
   Autoswitch                  On

Now I want same to be updated on secondary node vg01 .

?? Do vgchgid requires any downtime .. on primary cluster
Last edited by Shirishlnx; 08-21-2012 at 09:51 AM..
 

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LEARN ABOUT OPENSOLARIS

mkdevmaps

mkdevmaps(1M)						  System Administration Commands					     mkdevmaps(1M)

NAME

       mkdevmaps - make device_maps entries

SYNOPSIS

       /usr/sbin/mkdevmaps

DESCRIPTION

       The  mkdevmaps  command	writes	to standard out a set of device_maps(4) entries describing the system's frame buffer, audio, and removable
       media devices.

       The mkdevmaps command is used by the init.d(4) scripts to create or update the /etc/security/device_maps file.

       Entries are generated based on the device special files found in /dev. For the different  categories  of  devices,  the	mkdevmaps  command
       checks for the following files under /dev:

	 audio		 /dev/audio, /dev/audioctl, /dev/sound/...
	 tape		 /dev/rst*, /dev/nrst*, /dev/rmt/...
	 floppy 	 /dev/diskette, /dev/fd*, /dev/rdiskette, /dev/rfd*
	 removable disk  /dev/dsk/c0t?d0s?, /dev/rdsk/c0t?d0s?
	 frame buffer	 /dev/fb

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Obsolete			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       allocate(1), bsmconv(1M), attributes(5)

NOTES

       mkdevmaps might not be supported in a future release of the Solaris operating system.

SunOS 5.11							    8 Oct 2003							     mkdevmaps(1M)
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