HP-UX : Managing Disc Basic

To check available disk space and file system, type bdf

[hpa50-12]/ >bdf
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 204800 70848 132960 35% /
/dev/vg00/lvol1 295024 26616 238904 10% /stand
/dev/vg00/lvol8 1560576 273496 1277096 18% /var
/dev/vg00/lvol7 909312 858128 50848 94% /usr
/dev/vg00/lvol4 204800 2800 200496 1% /tmp
/dev/vg00/lvol6 929792 695864 232144 75% /opt
/dev/vg00/lvol5 20480 2320 18024 11% /home

** The bdf command displays the amount of free disk space available


To check physical volume of disk, type ioscan -funC disk

[hpa50-12]/ >ioscan -funC disk
Class I H/W Path Driver S/W State H/W Type Description
======================================================================
disk 0 0/0/1/1.15.0 sdisk CLAIMED DEVICE HP

18.2GST318406LC
/dev/dsk/c1t15d0 /dev/rdsk/c1t15d0
disk 1 0/0/2/1.15.0 sdisk CLAIMED DEVICE HP

18.2GMAN3184MC
/dev/dsk/c3t15d0 /dev/rdsk/c3t15d0

** Ioscan scans system hardware, usable I/O system devices, or kernel I/O system data structures as appropriate, and lists the results.



To check further information of physical volume type, pvdisplay /Physical/volumes/path

[hpa50-12]/ >pvdisplay /dev/dsk/c1t15d0
--- Physical volumes ---
PV Name /dev/dsk/c1t15d0
VG Name /dev/vg00
PV Status available
Allocatable yes
VGDA 2
Cur LV 8
PE Size (Mbytes) 4
Total PE 4340
Free PE 3074
Allocated PE 1266
Stale PE 0
IO Timeout (Seconds) default
Autoswitch On

** pvdisplay - display information about physical volumes within LVM volume group


To check Volume Group (VG), look at the output of the bdf command and see at the Filesystem field, /dev/vg00 <-- vg00 is the Volume Group (VG). Then type command, vgdisplay

volumegr0up [hpa50-12]/ >vgdisplay vg00
--- Volume groups ---
VG Name /dev/vg00
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 8
Open LV 8
Max PV 16
Cur PV 1
Act PV 1
Max PE per PV 4350
VGDA 2
PE Size (Mbytes) 4
Total PE 4340
Alloc PE 1266
Free PE 3074
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0


To scan the existing volume group, type vgscan

[hpa50-12]/ >vgscan
vgscan: The physical volume "/dev/dsk/c1t15d0" is already recorded in the

"/etc/lvmtab" file.
Physical Volume "/dev/dsk/c3t15d0" contains no LVM information

** vgdisplay - display information about LVM volume groups



To check Logical Volume, look at the output of the bdf command and see at the Filesystem field, /dev/vg00/lvol3, /dev/vg00/lvol1 and /dev/vg00/lvol8. lvol3, lvol1 and lvol8 are the logical volume. To getthe information of logical volume type, lvdisplay /dev/vg00/logicalVolume


=========
Example1
=========

[hpa50-12]/ >lvdisplay /dev/vg00/lvol3
--- Logical volumes ---
LV Name /dev/vg00/lvol3
VG Name /dev/vg00
LV Permission read/write
LV Status available/syncd
Mirror copies 0
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 200
Current LE 50
Allocated PE 50
Stripes 0
Stripe Size (Kbytes) 0
Bad block off
Allocation strict/contiguous
IO Timeout (Seconds) default


=========
Example2
=========

[hpa50-12]/ >lvdisplay /dev/vg00/lvol1
--- Logical volumes ---
LV Name /dev/vg00/lvol1
VG Name /dev/vg00
LV Permission read/write
LV Status available/syncd
Mirror copies 0
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 300
Current LE 75
Allocated PE 75
Stripes 0
Stripe Size (Kbytes) 0
Bad block off
Allocation strict/contiguous
IO Timeout (Seconds) default


=========
Example3
=========

[hpa50-12]/ >lvdisplay /dev/vg00/lvol8
--- Logical volumes ---
LV Name /dev/vg00/lvol8
VG Name /dev/vg00
LV Permission read/write
LV Status available/syncd
Mirror copies 0
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 1524
Current LE 381
Allocated PE 381
Stripes 0
Stripe Size (Kbytes) 0
Bad block on
Allocation strict
IO Timeout (Seconds) default


[hpa50-12]/ >ioscan -kfC ext_bus
Class I H/W Path Driver S/W State H/W Type Description
=================================================================
ext_bus 0 0/0/1/0 c720 CLAIMED INTERFACE SCSI C896 Ultra Wide

LVD
ext_bus 1 0/0/1/1 c720 CLAIMED INTERFACE SCSI C896 Ultra Wide

Single-Ended
ext_bus 2 0/0/2/0 c720 CLAIMED INTERFACE SCSI C87x Fast Wide

Single-Ended
ext_bus 3 0/0/2/1 c720 CLAIMED INTERFACE SCSI C87x Ultra Wide

Single-Ended



To get information of what disk and filesystem that currently mount type, mount

[hpa50-12]/ >mount
/ on /dev/vg00/lvol3 log on Fri Apr 30 17:28:38 2010
/stand on /dev/vg00/lvol1 defaults on Fri Apr 30 17:28:38 2010
/var on /dev/vg00/lvol8 delaylog,nodatainlog on Fri Apr 30 17:28:42 2010
/usr on /dev/vg00/lvol7 delaylog,nodatainlog on Fri Apr 30 17:28:42 2010
/tmp on /dev/vg00/lvol4 delaylog,nodatainlog on Fri Apr 30 17:28:42 2010
/opt on /dev/vg00/lvol6 delaylog,nodatainlog on Fri Apr 30 17:28:42 2010
/home on /dev/vg00/lvol5 delaylog,nodatainlog on Fri Apr 30 17:28:43 2010

[hpa50-12]/ >bdf
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 204800 70848 132960 35% /
/dev/vg00/lvol1 295024 26616 238904 10% /stand
/dev/vg00/lvol8 1560576 273496 1277096 18% /var
/dev/vg00/lvol7 909312 858128 50848 94% /usr
/dev/vg00/lvol4 204800 2800 200496 1% /tmp
/dev/vg00/lvol6 929792 695864 232144 75% /opt
/dev/vg00/lvol5 20480 2320 18024 11% /home