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how to go about resizing the virtual disk?

 
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Old 01-04-2012
how to go about resizing the virtual disk?
Hi guys ,
We are running machines in virtual environment.

As a part of virtual solution we have a disk created in form of files on host machine.

The problem is we are facing space crunch and need to re size the harddisk files of virtual machines.

There a catch the virtual machines are running linux and using LVM so resizing the actual hardisk file with dd is not an option(correct me if i m wrong) .I guess i have to first reduce the LV and then create some un partitioned space on virtual machines file system .

Any help would be appreciated.
 
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LEARN ABOUT REDHAT

pvm_mstat

MSTAT(3PVM)							  PVM Version 3.4						       MSTAT(3PVM)

NAME

       pvm_mstat - Returns the status of a host in the virtual machine.

SYNOPSIS

       C    int mstat = pvm_mstat( char *host )

       Fortran	 call pvmfmstat( host, mstat )

PARAMETERS

       host    Character string containing the host name.

       mstat   Integer returning machine status:
		    value		MEANING
		    PvmOk		host is OK
		    PvmNoHost		host is not in virtual machine
		    PvmHostFail 	host is unreachable (and thus possibly failed)

DESCRIPTION

       The  routine  pvm_mstat returns the status mstat of the computer named host with respect to running PVM processes. This routine can be used
       to determine if a particular host has failed and if the virtual machine needs to be reconfigured. The function  pvm_notify()  can  also	be
       used to notify the caller that a host has failed.

EXAMPLES

       C:
	    mstat = pvm_mstat( "msr.ornl.gov" );

       Fortran:
	    CALL PVMFMSTAT( 'msr.ornl.gov', MSTAT )

ERRORS

       These error conditions can be returned by pvm_mstat

       PvmSysErr
	      pvmd not responding.

       PvmNoHost
	      giving a host name not in the virtual machine.

       PvmHostFail
	      host is unreachable (and thus possibly failed).

SEE ALSO

       pvm_notify(3PVM), pvm_config(3PVM)

								  30 August, 1993						       MSTAT(3PVM)