>>>>> "Marc" == Marc MERLIN <marc@xxxxxxxxxxx> writes: Marc> Hi Zdenek, Marc> Thanks for your helpful reply. Marc> On Fri, Jul 27, 2018 at 02:59:28PM +0200, Zdenek Kabelac wrote: >> Dne 26.7.2018 v 18:31 Marc MERLIN napsal(a): >> >Still learning about thin volumes. >> >Why do I want my thin pool to get auto extended? Does "extended" mean >> >resized? >> >> yes extension == resize Marc> Gotcha. Then I don't want to have to worry about my filesystem being resized Marc> multiple times, especially since I'm not sure how it will help. >> man lvmthin. Marc> Thanks. Had read it, but not carefully enough. Marc> So, I just re-read "Automatic extend settings" Marc> I'm still I'm not entirely sure how using extension would help me there. I Marc> can't set it to 10% for all 10 filesystems (50% is minimum). Marc> If I set it to anything less than 100%, it could later that it can block, Marc> and try to extend and resize later, but ultimately I'll still have multiple Marc> filesystems that together exceed the space available, so I can run out. Marc> I'm not seeing how the automatic extend setting is helpful, at least in my case. Marc> Am I missing something? Marc> To be clear, my case is that I will have 10 filesystems in a Marc> place where the same data was in a single filesystem that sadly Marc> I must segment now. More than a few will take more than 1/10th Marc> of the space, but I don't want to have to worry about which ones Marc> are going to use how much as long as all together they stay Marc> below 100% of course. Marc> I don't want to have to manage space for each of those 10 and Marc> have to resize them by hand multiple times up and down to share Marc> the space, hence dm-thin. Why don't you run quotas on your filesystems? Also, none of the filesystems in Linux land that I'm aware of supports shrinking the filesystem while live, it's all a unmount, shrink FS, shrink volume (carefully!) and then re-mount the filesystem. But again, I think you might really prefer quotas instead, unless you need complete logical seperation. John _______________________________________________ linux-lvm mailing list linux-lvm@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
