What is your storage over provisioning factor ? Even that could be the reason. Regarding allocated vs used capacity I had written a wiki[1] sometime back. Please see if it helps.
[1] https://cwiki.apache.org/confluence/display/CLOUDSTACK/Understanding+Dashbo ard Thanks, -Nitin On 04/10/13 8:08 AM, "benoit lair" <kurushi4...@gmail.com> wrote: >Effectively, it's very surprising. > >I checked my differents storage (local as iscsi sr) on xcp 1.0, xcp 1.1, >xcp 1.4.90, xcp 1.6, xenserver 6.0 and xenserver 6.2, i observe that i can >have a 'used' storage more important that the 'allocated' one > >I verified connected to my hypervisors shells and verified the data >displayed in xencenter, the value 'used' is the good one. > >However, i can have allocated 200GB on my local SR to one vm (so it's >provisionning). I can have 33GB 'used' on my local SR, but i have in >reality less storage available into my vm. > >More clearly, if 200GB allocated on one vm, if xencenter says me 33GB are >used, i can retrieve a vhd file corresponding to my vm of a size of 33GB, >but when i'm connected to the vm's shell, i don't retrieve my 33gbs of >storage. > >I observe the same phenomenon with my others xenserver hypervisors. > >It seems that some metadatas could be present into the vhd file + the real >vm storage. > > > >Is there any citrix xenserver specialist in the room to confirm (or not) >what i said ? > > >Thanks. > >Regards, Benoit. > > >2013/10/4 Mike Tutkowski <mike.tutkow...@solidfire.com> > >> Doh! I guess that would have been helpful info. :) >> >> It is in XenCenter. If you click on an SR and look at the General tab. >> >> http://i.imgur.com/z5F1Ct0.png >> >> >> On Fri, Oct 4, 2013 at 4:34 AM, benoit lair <kurushi4...@gmail.com> >>wrote: >> >> > Hi Mike, >> > >> > Where do you see this information ? On the CS dashboard ? Or with >> > xencenter, listing the sr with the windows gui ? >> > >> > Regards, Benoit. >> > >> > >> > 2013/10/3 Mike Tutkowski <mike.tutkow...@solidfire.com> >> > >> > > Hi, >> > > >> > > On one of my SRs, I see the following information: >> > > >> > > 100.2 GB used of 200 GB total (100 GB allocated) >> > > >> > > Can someone explain how 'used' can be larger than 'allocated'? >> > > >> > > On storage systems I've worked on before, 'allocated' is generally >> > > synonymous with 'reserved' or 'provisioned'. On these systems, >>'used' >> is >> > > always less than or equal to 'allocated'. Typically 'used' is less >>than >> > > 'allocated' because as 'used' approaches 'allocated', 'allocated' is >> > > expanded (until it runs into 'total'). >> > > >> > > Thanks! >> > > >> > > -- >> > > *Mike Tutkowski* >> > > *Senior CloudStack Developer, SolidFire Inc.* >> > > e: mike.tutkow...@solidfire.com >> > > o: 303.746.7302 >> > > Advancing the way the world uses the >> > > cloud<http://solidfire.com/solution/overview/?video=play> >> > > ** >> > > >> > >> >> >> >> -- >> *Mike Tutkowski* >> *Senior CloudStack Developer, SolidFire Inc.* >> e: mike.tutkow...@solidfire.com >> o: 303.746.7302 >> Advancing the way the world uses the >> cloud<http://solidfire.com/solution/overview/?video=play> >> ** >>
