How about jfs and jfs2 differ in aix?
Still some of the aix interview, they are asking
about the difference between jfs and jfs2. The main difference would be shrink
the filesystem in jfs2 and not possible in jfs. However we have to answer the
question when the interviewer asked. Here are the differenciation below.
|
Function
|
JFS
|
JFS2
|
|
Max.Filesystem size
|
1 TB
|
4 PB
|
|
Max File size
|
64 GB
|
4 PB
|
|
No.of i-nodes
|
16MB
|
Dynamic
|
|
i-node size
|
128 bytes
|
512 bytes
|
|
Fragment
|
512 bytes
|
512 bytes
|
|
Data block size
|
4096 bytes
|
4096 bytes
|
|
Compression
|
Yes
|
No
|
|
SGID
|
On
|
Off
|
|
INLINE log
|
No
|
Yes
|
|
File system size decrease
|
No
|
Yes
|
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