enlarging a file system

[esIndi]

Hello folks,

Can someone please explain in simple words
how does the size of a file system depends
on the PP (physical partition) size,
and if there are other factors impacting
on the file system size ?

(I tried to enlarge a file system
thinking that it's size is a multiplication
of the PP size, but got a much higher enlargement
than the one I wished for).

Thanks in advance.

 

[sbix]

How did you enlarge that filesystem?
Which command did you use?

 

[unixfreak]

The filesystem size does not depend on PP size.

Cheers

 

[bi]

If the PP size is 32 MB and you increase the size of a filesystem by 1 PP, the filesystem is going to be 32 MB larger. If you want to increase the filesystem by 1 GB, you add 32 PPs to the filesystem (32 X 32 MB = 1 GB). Your math may have been off.

 

[Yegolev]

when you use chfs, you give the number of 512-byte blocks. the LVM will round up to the next full PP. if you want to make a filesystem of 1GB you would use 2048000.

chfs -a size=2048000 /filesys

IBM Certified -- AIX 4.3 Obfuscation

 

[sallopez]

Simply to add 100M to /test do..

#chfs -a size=+200000 /test


to add 400M...

#chfs -a size=+800000 /test