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Thursday, March 27, 2014

HPUX :Create a volume group version 2.0



Create a volume group version 2.0
Overview
Create a volume group version 2.0 with 8 disk, for pvg-strict/distributed.
Procedures
Create a volume group version 2.0 named /dev/vg09 with 8 physical volumes, an extent size of 256 megabytes and a maximum total size of 1 petabyte.
#cat xp.out |grep -iE "4f:14|4f:15|4f:16|4f:17|5d:c4|5d:c5|5d:c6|5d:c7"
/dev/rdisk/disk212           82  --- 24  CL5H  4f:14  OPEN-V           00065760  
/dev/rdisk/disk173           82  --- 25  CL5H  4f:15  OPEN-V           00065760  
/dev/rdisk/disk215           74  --- 26  CL6H  4f:16  OPEN-V           00065760  
/dev/rdisk/disk225           74  --- 27  CL6H  4f:17  OPEN-V           00065760  
/dev/rdisk/disk763           88  --- 88  CL1H  5d:c4  OPEN-V           00066657  
/dev/rdisk/disk764           88  --- 89  CL1H  5d:c5  OPEN-V           00066657  
/dev/rdisk/disk766           75  --- 8a  CL4H  5d:c6  OPEN-V           00066657  
/dev/rdisk/disk770           75  --- 8b  CL4H  5d:c7  OPEN-V           00066657  
#

#cat RDISK |sed "s/rdisk/disk/"
/dev/disk/disk212
/dev/disk/disk173
/dev/disk/disk215
/dev/disk/disk225
/dev/disk/disk763
/dev/disk/disk764
/dev/disk/disk766
/dev/disk/disk770

#cat RDISK |sed "s/rdisk/disk/" |while read disk
> do
> strings /etc/lvmtab|grep -w $disk
> done
#

 Initialize the disks using pvcreate
cat RDISK |while read disk
> do
> pvcreate  $disk
> done
Physical volume "/dev/rdisk/disk212" has been successfully created.
Physical volume "/dev/rdisk/disk173" has been successfully created.
Physical volume "/dev/rdisk/disk215" has been successfully created.
Physical volume "/dev/rdisk/disk225" has been successfully created.
Physical volume "/dev/rdisk/disk763" has been successfully created.
Physical volume "/dev/rdisk/disk764" has been successfully created.
Physical volume "/dev/rdisk/disk766" has been successfully created.
Physical volume "/dev/rdisk/disk770" has been successfully created.
The vg_name directory and group file will be created automatically.  Optionally, these files can be created before  doing the vgcreate, as follows:

           mkdir /dev/vg09
           mknod /dev/vg09/group c 128 0x009000

           NOTE: Notice that the major number for a volume group version 2.0
           or higher is 128 while the major number for a volume group
           version 1.0 is 64.  Also, the volume group number occupies the
           high order 12 bits of the minor number rather than the high order
           8 bits as in volume groups version 1.0.
Create the volume group version 2.0.
#  vgcreate -V 2.0 -s 256 -S 1p /dev/vg09 /dev/disk/disk212  /dev/disk/disk173
Volume group "/dev/vg09" has been successfully created.
Volume Group configuration for /dev/vg09 has been saved in /etc/lvmconf/vg09.conf
 #vgextend -g PVGNAME01 /dev/vg09 /dev/disk/disk212 /dev/disk/disk173 /dev/disk/disk215 /dev/disk/disk225
vgextend: The physical volume "/dev/disk/disk212" is already recorded in the "/etc/lvmtab_p" file.
vgextend: The physical volume "/dev/disk/disk173" is already recorded in the "/etc/lvmtab_p" file.
Physical volume group "PVGNAME01" has been successfully extended.
Volume Group configuration for /dev/vg09 has been saved in /etc/lvmconf/vg09.conf
# vgextend -g PVGNAME02 /dev/vg09 /dev/disk/disk763 /dev/disk/disk764 /dev/disk/disk766 /dev/disk/disk770
Volume group "/dev/vg09" has been successfully extended.
Physical volume group "PVGNAME02" has been successfully extended.
Volume Group configuration for /dev/vg09 has been saved in /etc/lvmconf/vg09.conf
#

#vgdisplay -v /dev/vg09
--- Volume groups ---
VG Name                     /dev/vg09
VG Write Access             read/write    
VG Status                   available                 
Max LV                      511   
Cur LV                      0     
Open LV                     0     
Max PV                      511   
Cur PV                      8     
Act PV                      8     
Max PE per PV               65536         
VGDA                        16 
PE Size (Mbytes)            256            
Total PE                    2840          
Alloc PE                    0             
Free PE                     2840          
Total PVG                   2       
Total Spare PVs             0             
Total Spare PVs in use      0                    
VG Version                  2.0      
VG Max Size                 1p        
VG Max Extents              4194304       


   --- Physical volumes ---
   PV Name                     /dev/disk/disk212
   PV Status                   available               
   Total PE                    499           
   Free PE                     499           
   Autoswitch                  On       
   Proactive Polling           On              

   PV Name                     /dev/disk/disk173
   PV Status                   available               
   Total PE                    499           
   Free PE                     499           
   Autoswitch                  On       
   Proactive Polling           On              

   PV Name                     /dev/disk/disk215
   PV Status                     available               
   Total PE                       499           
   Free PE                         499           
   Autoswitch                  On       
   Proactive Polling         On              

   PV Name                     /dev/disk/disk225
   PV Status                   available               
   Total PE                    499           
   Free PE                     499           
   Autoswitch                  On       
   Proactive Polling           On              

   PV Name                     /dev/disk/disk763
   PV Status                   available               
   Total PE                    211           
   Free PE                     211           
   Autoswitch                  On       
   Proactive Polling           On              

   PV Name                     /dev/disk/disk764
   PV Status                   available               
   Total PE                    211           
   Free PE                     211           
   Autoswitch                  On       
   Proactive Polling           On              

   PV Name                     /dev/disk/disk766
   PV Status                   available               
   Total PE                    211           
   Free PE                     211           
   Autoswitch                  On       
   Proactive Polling           On              

   PV Name                     /dev/disk/disk770
   PV Status                   available               
   Total PE                    211           
   Free PE                     211           
   Autoswitch                  On       
   Proactive Polling           On              


   --- Physical volume groups ---
   PVG Name                    PVGNAME01
   PV Name                     /dev/disk/disk212
   PV Name                     /dev/disk/disk173
   PV Name                     /dev/disk/disk215
   PV Name                     /dev/disk/disk225

   PVG Name                    PVGNAME02
   PV Name                     /dev/disk/disk763
   PV Name                     /dev/disk/disk764
   PV Name                     /dev/disk/disk766
   PV Name                     /dev/disk/disk770

#Create LV  ---as per requirement

#lvcreate -n lv_Data /dev/vg09
#lvextend -L 101024 /dev/vg09/lv_Data PVGNAME01
#newfs -F vxfs -o largefiles -b 8192 /dev/vg09/rlv_Data
#mkdir /oracle/SAP/sapdata1
#mount /dev/vg09/lv_Data /oracle/SAP/sapdata1
#bdf /oracle/SAP/sapdata1



#strings /etc/lvmtab_p
/dev/vg09
A0000000000000001Thu Mar 27 16:27:27 20148bcaad08-1ae4-11e1-be63-8775a8ebba59
/dev/disk/disk212
/dev/disk/disk173
/dev/disk/disk215
/dev/disk/disk225
/dev/disk/disk763
/dev/disk/disk764
/dev/disk/disk766
/dev/disk/disk770

How to Decom the VG if it is not in Use :

#vgchange -a n /dev/vg09
Volume group "/dev/vg09" has been successfully changed.
#vgexport /dev/vg09
Physical volume "/dev/disk/disk212" has been successfully deleted from
physical volume group "PVGNAME01".
Physical volume "/dev/disk/disk173" has been successfully deleted from
physical volume group "PVGNAME01".
Physical volume "/dev/disk/disk215" has been successfully deleted from
physical volume group "PVGNAME01".
Physical volume "/dev/disk/disk225" has been successfully deleted from
physical volume group "PVGNAME01".
Physical volume "/dev/disk/disk763" has been successfully deleted from
physical volume group "PVGNAME02".
Physical volume "/dev/disk/disk764" has been successfully deleted from
physical volume group "PVGNAME02".
Physical volume "/dev/disk/disk766" has been successfully deleted from
physical volume group "PVGNAME02".
Physical volume "/dev/disk/disk770" has been successfully deleted from
physical volume group "PVGNAME02".
vgexport: Volume group "/dev/vg09" has been successfully removed.
#


           Create a volume group version 2.0 of size comparable to a volume
           group version 1.0 created with pe_size=64, max_pe=4096, and
           max_pv=16 on an already initialized disk.

           First calculate the appropriate vg_size parameter as follows:
           max_pe x max_pv x pe_size=vg_size (in megabytes) 4096 x 16 x 64 =
           4194304m = 4t.  Now create the volume group version 2.0.

           vgcreate -V 2.0 -s 64 -S 4t vg10 /dev/disk/disk04

           Display the minimum extent size required to create a 512 terabyte
           volume group version 2.0.

           vgcreate -V 2.0 -E -S 512t
Keywords
Vgextend ,

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