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1 Tictac_NS commented Permalink

Just a note, <div>&nbsp;</div> I prefer to use the lsvg command to determine the PP size, simply because I can then check that the vg has enough free space for the desired size change. <div>&nbsp;</div> Ken C

2 AnthonyEnglish commented Permalink

Yes, very true, Ken. In my original post I included a step to do that after the lslv. I took it out to minimise the number of steps, and there's still a little bit of complexity and calculation involved in increasing paging space. <div>&nbsp;</div> I'd usually do exactly what you do: use lsvg, although you don't have to, as you know. That's one of the things I really like about AIX. You can just try to do something like increase a file system and you'll get an error if there isn't sufficient space. You can let the LVM do the homework for you. <div>&nbsp;</div> Thanks for your comment, Ken, and for following the blog.

3 jdiaz6437 commented Permalink

Hi Anthony, <div>&nbsp;</div> I agree there`s gotta be a simpler way to increase paging spaces, but I guess having the chps command to increase the way you would do it with a filesystem, this command would have to do 2 things. First, increase the paging space; and second, make the additional size active. For now I guess I have to use bc to calculate the additional LPs for a paging space. <div>&nbsp;</div> Juan M Diaz

4 AnthonyEnglish commented Permalink

Juan, <div>&nbsp;</div> Thanks for your comment. <div>&nbsp;</div> I'm suggesting the chps command do exactly what the -s flag does now to increase paging space size. At the moment, you can increase the size without making it active at the same time. The functionality wouldn't be any different - just the syntax. <div>&nbsp;</div> Anthony

5 daboule commented Permalink

In my opinion IBM should first enhance the reduction process of a paging space.... <div>&nbsp;</div> Even for the reduction of 1 PP, AIX creates a temporary paging space. <br /> In certain case, it's not possible due to a lack of space disk. <div>&nbsp;</div>

6 AnthonyEnglish commented Permalink

Yes, I see what you mean. I suppose that's so they can keep an active paging space, so the process is: create the new temporary space, make it active, and only then remove the larger original paging space. Beats rebooting to make a paging space inactive, which is what we used to have to do in AIX 4.3.