Hello Herbert, hello list, Am Samstag, den 14.11.2009, 17:11 +0100 schrieb Herbert Poetzl: > > As far, as I can see, space_total is limited to 2^32 - 1 = 4294967295 > > correct, that is not only a limitation of vdlimit, > but also of the kernel interface (which uses uint32_t too) > > > On line 85 of > > http://svn.linux-vserver.org/projects/util-vserver/browser/trunk/src/vdlimit.c > > I see an "uint32_t" which seemes to be the limiting factor. > > > I can't write C so I can't fix it, but perhaps this helps ;) > > the question is, do you really need more? > > space_total and space_used is in kilobyte, so 2^10 bytes > that makes a total max of 2^41 (there are some special values) > or 2TB, which usually should suffice for guest limits > > present a case why you need more than that and we might > extend the interface to cover all 2^64 accounted bytes > (i.e. 16EB, exa bytes) The case is very simple, we have got a vserverguest which needs more than 2 TB diskspace ;) We are using a vserverguest in favour of a dedicated machine to be independent from the hardware itself. The quota is a very easy way to monitor the diskspace. I have seen, that there seemes to be an inconsitence between the kernelinterface and vdlimit. I am able to set 4 TB quota (2^32-1): /usr/sbin/vdlimit --xid 60144 --set space_used=2069262452 \ --set space_total=4294967295 --set inodes_used=1185528 \ --set inodes_total=286501273 /var/lib/vservers/vguest/ The vdlimit shows a negative value: /usr/sbin/vdlimit --xid 60144 /var/lib/vservers/vguest/ 60144 /var/lib/vservers/vguest/ space_used=-2045859808 space_total=-1 inodes_used=7230176 inodes_total=286501273 reserved=5 The vguest shows the correct values: # df -h Filesystem Size Used Avail Use% Mounted on /dev/hdv1 4.5T 2.1T 2.2T 50% / I understand, that the kernel ist using uint32, too, but I think this should be raised in future as diskspace is pretty cheap and there will be other users hit by this limitation. As I am not a kernelhacker, I cant evaluate the drawbacks of raising this value within the kernel and the vserver-tools. Perhaps you can give me a hint. Best regards, Andre