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used PPs not match the total disk space showed by df


 
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Operating Systems AIX used PPs not match the total disk space showed by df
# 1  
Old 11-26-2008
used PPs not match the total disk space showed by df

Hi,

I see from lsvg the total used PPs is 1050 (67200 megabytes), but when I check the disk space with df command I can only see 31G total space, can somebody tell how this come?

Thanks!
Victor

# lsvg
rootvg
# lsvg rootvg
VOLUME GROUP: rootvg VG IDENTIFIER: 0002ac5f00004c00000
0010619ab4aa2
VG STATE: active PP SIZE: 64 megabyte(s)
VG PERMISSION: read/write TOTAL PPs: 1083 (69312 megabyt
es)
MAX LVs: 256 FREE PPs: 33 (2112 megabytes)
LVs: 12 USED PPs: 1050 (67200 megabyt
es)
OPEN LVs: 11 QUORUM: 1
TOTAL PVs: 2 VG DESCRIPTORS: 3
STALE PVs: 0 STALE PPs: 0
ACTIVE PVs: 2 AUTO ON: yes
MAX PPs per VG: 32512 0
MAX PPs per PV: 1016 MAX PVs: 32
LTG size (Dynamic): 256 kilobyte(s) AUTO SYNC: no
HOT SPARE: no BB POLICY: relocatable
#smit
:
COMMAND STATUS

Command: OK stdout: yes stderr: no

Before command completion, additional instructions may appear below.

Name Nodename Mount Pt VFS Size Options Auto
Accounting
/dev/hd4 -- / jfs 1048576 -- yes
no
/dev/hd1 -- /home jfs 1048576 -- yes
no
/dev/hd2 -- /usr jfs 11403264 -- yes
no
/dev/hd9var -- /var jfs 917504 -- yes
no
/dev/hd3 -- /tmp jfs 2621440 -- yes
no
/proc -- /proc procfs -- -- yes
no
/dev/hd10opt -- /opt jfs 2097152 -- yes
no
/dev/cd0 -- /cdrom cdrfs -- ro no
no
/dev/lv01 -- /logs jfs 3145728 rw yes
no
/dev/data_bkp -- /prodDayEndDataCopy jfs2 41943040 rw yes
no


# df -k
Filesystem 1024-blocks Free %Used Iused %Iused Mounted on
/dev/hd4 524288 275320 48% 5407 3% /
/dev/hd2 5701632 4060504 29% 41432 3% /usr
/dev/hd9var 458752 248904 46% 787 1% /var
/dev/hd3 1310720 403328 70% 514 1% /tmp
/dev/hd1 524288 446572 15% 11399 9% /home
/proc - - - - - /proc
/dev/hd10opt 1048576 437428 59% 14868 6% /opt
/dev/lv01 1572864 1164168 26% 21 1% /logs
/dev/data_bkp 20971520 8779928 59% 13579 1% /prodDayEndDataCopy
# 2  
Old 11-27-2008
Better do a
Code:
lsvg -l rootvg

and check again if the number of used PP is not correct. Chances are, that you have rootvg mirrored and so 2 PP (each on a different hdisk hopefully) belong to one LP. Space calculation for mounted FS'es with df belong to LPs, not to PPs.
Also you will have some LVs of the type boot, paging, jfs2log and sysdump, which don't show up in df either.
# 3  
Old 11-27-2008
Hi Zaxxon,

You are correct, we are rootvg mirrored .

Thanks!
Victor

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