Sunday, April 26, 2009
IBM AIX Operating System an Overview
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IBM AIX Version 6.1 Differences Guide
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AIX - LVM - List File System
IBM - AIX - List File System
We can list file system details using lsfs command
#lsfs – List all filesystems in the /etc/filesystems entry
#lsfs –q (List all filesystems with detailed info)
#lsfs –a (list all filesystems (default)
#lsfs –l (specify the output in the list format)
#lsfs –c (specify the output in the column format)
#lsfs –v jfs (List all jfs filesystems)
We can list file system details using lsfs command
#lsfs – List all filesystems in the /etc/filesystems entry
#lsfs –q (List all filesystems with detailed info)
#lsfs –a (list all filesystems (default)
#lsfs –l (specify the output in the list format)
#lsfs –c (specify the output in the column format)
#lsfs –v jfs (List all jfs filesystems)
AIX - LVM - Change File System
AIX - LVM - Change File System
Using chfs command we can rename and increase the size of the file system online
We want to increase file system size
#chfs –a size=+block size /filesystem name
#chfs –a size=+32m /filesystem name
#chfs-a size=+4g /filesystem name
+block size – We can mention the size using blocks (2048 blocks = 1MB)
+32m – We can mention the size using MB
+4g – We can mention the size using GB
After increasing the file system size, we can verify using commands
#df –k
#ls –q /newfs
Rename the file system using chfs command
#lsfs /newfs
It will display /newfs details
#
Now we want to rename /newfs to /testfs then your command will be
#chfs –m /testfs /newfs
After executing the above command /newfs renamed as /testfs
We can auto mount the file system while booting using chfs command
#chfs –A /testfs
Using chfs command we can rename and increase the size of the file system online
We want to increase file system size
#chfs –a size=+block size /filesystem name
#chfs –a size=+32m /filesystem name
#chfs-a size=+4g /filesystem name
+block size – We can mention the size using blocks (2048 blocks = 1MB)
+32m – We can mention the size using MB
+4g – We can mention the size using GB
After increasing the file system size, we can verify using commands
#df –k
#ls –q /newfs
Rename the file system using chfs command
#lsfs /newfs
It will display /newfs details
#
Now we want to rename /newfs to /testfs then your command will be
#chfs –m /testfs /newfs
After executing the above command /newfs renamed as /testfs
We can auto mount the file system while booting using chfs command
#chfs –A /testfs
AIX - LVM - Create File System
AIX - LVM - Create File System
Create FS
Using crfs command we can create a file system. File systems belongs to LV’s
Whenever we create the file system we should mention the LV name
#crfs –v jfs2 –d testlv –m /newfs (Normal creation)
The /newfs file system created on testlv.
#crfs –v jfs2 –g testvg –a size=64465 –m /newfs (Directly we can create /fs from VG
This case lv name will be lv00 or lv01 like this after that also we can rename the lv name)
Create FS
Using crfs command we can create a file system. File systems belongs to LV’s
Whenever we create the file system we should mention the LV name
#crfs –v jfs2 –d testlv –m /newfs (Normal creation)
The /newfs file system created on testlv.
#crfs –v jfs2 –g testvg –a size=64465 –m /newfs (Directly we can create /fs from VG
This case lv name will be lv00 or lv01 like this after that also we can rename the lv name)
AIX - LVM - Remove Logical Volume
AIX - LVM - Remove Logical Volume
If we want to LV testlv from server
#rmlv testlv (If data is available in testlv It will ask confirmation)
#rmlv –f testlv (It won’t ask any confirmation, directly it will delete the data)
After executing the above command testlv removed from the server.
If we want to LV testlv from server
#rmlv testlv (If data is available in testlv It will ask confirmation)
#rmlv –f testlv (It won’t ask any confirmation, directly it will delete the data)
After executing the above command testlv removed from the server.
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