agsize and nbpi

[taupinroccs]

Hello, i'm searching documentation about parameters agsize and nbpi during create a filesystem....
Someone can explain me what about those parameters ???
I didn't understand why you have to choose an agsize of 16 for a nbpi of 32768 ????????

Thx

 

[Gloups]

there is somme good information just there:

http://www.ncsa.uiuc.edu/UserInfo/R..._US/a_doc_lib/aixbman/admnconc/frag_under.htm

good luck

 

[taupinroccs]

i saw but not enough information...

Why nbpi=32768 and agsize=8 aren't compatible ???? We have to select agsize=16 !! Why ?

 

[donttreadonme]

Because 16384 is the largest value allowed for an 8 meg allocation group.

 

[Yegolev]

has to do with address-space limits, there is not an infinite-length area for inode addressing.

IBM Certified -- AIX 4.3 Obfuscation

 

[taupinroccs]

yep.. Can you give me more technical information Yegolev please ???? I'm a debutant...