File system creation procedure

Two volume groups, pdvg and segvg, are created to contain the /var/pd and /var/psf/segments file systems. Creating separate volume groups helps spread I/O across multiple actuators, which can improve performance. The pdvg volume group contains the important InfoPrint Manager database objects and should be backed up at regular intervals. The segvg volume group contains the segmented print files, and can be considered to be transient data. If you have multiple hard drives available for use with segvg, striping across these disks provides multiple heads accessing the data for faster I/O performance, which is useful when driving high speed/high resolution printers.

1. Create pdvg volume group:

   smitty mkvg
   		VOLUME GROUP name								[pdvg]
   		Physical partition SIZE in megabytes	[128]
   		PHYSICAL VOLUME names						[hdisk1]
   		Activate volume group AUTOMATICALLY	[yes]
   	 	 at system restart?
   		Volume Group MAJOR NUMBER					[]
   		Create VG Concurrent Capable?			[no]
   		Auto-varyon in Concurrent Mode			[no]
   		LTG Size in kbytes							[256]

   Commandline:

   mkvg -f -y'pdvg' -s'128' hdisk1

2. Create segvg volume group

   smitty mkvg
   		VOLUME GROUP name									[segvg]
   		Physical partition SIZE in megabytes		[128]
   		PHYSICAL VOLUME names							[hdisk2 hdisk3]
   		Activate volume group AUTOMATICALLY		[yes]
   		 at system restart?
   		Volume Group MAJOR NUMBER						[]
   		Create VG concurrent capable?				[no]
   		Auto-varyon in Concurrent Mode				[no]
   		LTG size in kbytes								[128]

   Commandline:

   mkvg -f -y'segvg' -s'128' hdisk2 hdisk3

   Note: You need to divide the drives your server has available between your Volume Groups.

The logical volumes are created to contain the file systems. Since /var/psf/segments is a third level directory, /var/psf must be created first, so that it is mounted before /var/psf/segments. If for some reason you create them in the wrong order, you will need to edit /etc/filesystems to correct the order. Try to avoid this.

To calculate the number of LOGICAL PARTITIONS, issue lsvg pdvg to get the number of free physical partitions available on the hard drive. Use a number roughly 30 less than the number of free physical partitions to fill the entire drive with the volume group.

1. Create lvpd logical volume

   smitty mklv
   Volume Group name											[pdvg]
   		
   		Logical volume NAME								[lvpd]
   		VOLUME GROUP name									[pdvg]
   		Number of LOGICAL PARTITIONS					[512]
   		PHYSICAL VOLUME names							[hdisk1]
   		Logical volume TYPE								[jfs]
   		POSITION on physical volume					middle
   		RANGE of physical volumes						minimum
   		MAXIMUM NUMBER of PHYSICAL VOLUMES			1
   			to use for allocation
   		Number of COPIES of each logical			1 
   			partition
   		Mirror Write Consistency?						active
   		Allocate each logical partition copy		yes
   			on a separate physical volume
   		RELOCATE the logical volume during 		yes
   			reorganization	
   		Logical Volume label							/var/pd
   		MAXIMUM NUMBER of LOGICAL PARTITIONS		512
   		Enable BAD BLOCK relocation					yes
   		SCHEDULING POLICY for reading/writing		parallel
   			logical partion copies
   		Enable WRITE VERIFY?							no
   		File containing ALLOCATION MAP				[]
   		Stripe Size											[Not Striped]

   Commandline:

   mklv -y'lvpd' -t'jfs' -u'1' -L'/var/pd' pdvg 512 hdisk1

2. Create lv01 logical volume

   smitty mklv
   Volume Group NAME 			[rootvg]
   	
   		Logical Volume NAME 							[lv01]
   		VOLUME GROUP name									[rootvg]
   		Number of LOGICAL PARTITIONS					[512]
   		PHYSICAL VOLUME names							[hdisk0]
   		Logical volume TYPE								[jfs]
   		POSITION on physical volume					middle
   		RANGE of physical volumes						minimum
   		MAXIMUM NUMBER of PHYSICAL VOLUMES			1
   			to use for allocation
   		Number of COPIES of each logical 			1
   			partition		
   		Mirror Write Consistency?						active
   		Allocate each logical partition copy		yes
   			on a separate physical volume
   		Relocate the logical partition during 	yes
   			reorganization	
   		Logical Volume label							/var/psf
   		MAXIMUM NUMBER of LOGICAL PARTITIONS		512
   		Enable BAD BLOCK relocation					yes
   		SCHEDULING POLICY for reading/writing		parallel
   			logical partion copies
   		Enable WRITE VERIFY?							no
   		File containing ALLOCATION MAP				[]
   		Stripe Size											[Not Striped]

   Commandline

   mklv -y'lv01' -t'jfs' -u'1' -L'/var/psf/' rootvg 512 hdisk0

3. Create lvpsfs logical volume

   smitty mklv
   Volume Group name				[segvg]
   	
   		Logical volume NAME								[seglv]
   		VOLUME GROUP name									[segvg]
   		Number of LOGICAL PARTITIONS					[512]
   		PHYSICAL VOLUME names							[hdisk2 hdisk3]
   		Logical volume TYPE								[jfs]
   		POSITION on physical volume					middle
   		RANGE of physical volumes						minimum
   		MAXIMUM NUMBER of PHYSICAL VOLUMES			2
   			to use for allocation
   		Number of COPIES of each logical			1 
   			partition		
   		Mirror Write Consistency?						active
   		Allocate each logical partition copy		yes
   			on a separate physical volume
   		RELOCATE the logical volume during 		yes
   			reorganization	
   		Logical Volume label							/var/psf/segments
   		MAXIMUM NUMBER of LOGICAL PARTITIONS		512
   		Enable BAD BLOCK relocation					yes
   		SCHEDULING POLICY for reading/writing		parallel
   			logical partion copies
   		Enable WRITE VERIFY?							no
   		File containing ALLOCATION MAP				[]
   		Stripe Size											[Not Striped]