Increasing a filesystem 1

[KenCunningham]

Good morning and compliments of the Season. Being a long-time Solaris admin I'm having a bit of trouble getting my head around the way in which filesystems work in AIX (5.2). I have a p650 with a 10 Gb /dev/trainlv which I would like to delete and add the resulting space to /dev/live01lv. I wasn't involved in setting these filesystems up but there seems little point in maintaining a filesystem (trainlv) which isn't used whilst another (live01lv) is at 97% capacity. To my knowledge both filesystems are mirrored.

Could someone please give me an idea where to start in blowing away the trainlv and adding this to live01lv. TIA.

 

[sbix]

Main question, those LVs are in the same VG?

 

[KenCunningham]

sbix - thanks for your response - yes, both are in the datavg VG.

 

[sbix]

well:
smitty fs and destroy the filesystem built on /dev/trainlv.
This will automatically destroy also /dev/trainlv and will return its partition to the VG.
Now you can increase the filesystem based on /dev/livelv01, by issuing smitty fs and increasing his size by typing a "+number_of_512_bytes_blocks_you_wish_to_add"

Hope to be useful
Merry XMAS

 

[sbix]

.... I wasn't sufficently clear ...
By typing typing a "+number_of_512_bytes_blocks_you_wish_to_add" in the SIZE field.
You have first to select "Add/Change/Show" menu then the "Journaled File System" menu then "Change/Show ... of a filesystem" function

 

[KenCunningham]

sbix, thanks again. A star for your Christmas tree! Have a good one.

 

[ariochian]

This will help.

if you do a smitty chfs and select the journaled filesystem you want to increase, inside the "size of the file system (in 512-byte blocks)" you can just place a + and a number of the size that you want to increase it to.

I.E.
SIZE of the file system (in 512-byte blocks)[+20480]
(this adds 10meg to the file system)

here is the chart I use.

MEGBYTE SIZE AIX FS SIZE(put + in front of number)
5 meg = 10240
10 meg = 20480
20 meg = 40960
25 meg = 51200
30 meg = 61440
40 meg = 81920
50 meg = 102400
60 meg = 122880
70 meg = 143360
80 meg = 163840
90 meg = 184320
100 meg = 204800
150 meg = 307200
200 meg = 409600
250 meg = 512000
500 meg = 1024000
700 meg = 1433600
1000 meg = 2048000