Hi Geoff, Thanks for your quick reply.
> Op 14 februari 2014 om 16:51 schreef Geoff Higginbottom > <geoff.higginbot...@shapeblue.com>: > > > Lennert , > > I would imagine it's because VMs created from Templates are using the settings > in the Compute Offering for the Root Volume, but VMs created from ISOs are > using the settings in the Disk Offering chosen for the Root Volume. Ok, if you put it this way it makes total sense. > It is not very obvious which one should apply, and also confusing from a user > perspective. Indeed, if you would for example want to define the I/O limits based on the type of the offering this is not possible if you would allow people to use templates and ISOs at the same time. For example: We have lower I/O rates for our 2 cheaper offerings. Now if you install from ISO you get a different I/O limit than you would if you install from template. > I've not checked, but suggest you take a look and see if there are any bugs or > feature request already logged, and if not get one logged. I will have a look. Thinking more and more about this I’m not sure there is even a proper way to do this. Every way has his up and downsides as long as you are mixing templates with ISO installs. The only way I could think (now) of is that the template automatically receives the closest disk offering (based on size), but doesn't sound very reliable either. > Regards > > Geoff Higginbottom > > D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581 > > geoff.higginbot...@shapeblue.com > > -----Original Message----- > From: Lennert den Teuling [mailto:lenn...@pcextreme.nl] > Sent: 14 February 2014 15:48 > To: users@cloudstack.apache.org > Subject: I/O Throttling in CS 4.2.1 > > Hi All, > > We started using I/O Throttling a few days ago on our platform to fairly share > the available disk writes between our customers and create a more reliable > disk performance. > > It seems to work fine, expect i noticed that when you create a VM from ISO the > I/O limit is not applied. > > We define the I/O write limit in the (VM)service offering, not the disk > offering. It seems to work fine for templates, but for ISO installs it seems > necessary to also define a limit in the disk offering. > > I would expect that when you define a limit in the (VM) service offering it's > applied to all underlaying disks. And because templates officially don't have > a disk offering, it's needed to apply in the service offering. We are now > defining it twice, but it's not ideal. > > Is this normal behavior or a bug? Thanks! > > Met vriendelijke groet / Kind regards, > > Lennert den Teuling > Tel direct: +31 (0)118 700 210 > Need Enterprise Grade Support for Apache CloudStack? > Our CloudStack Infrastructure > Support<http://shapeblue.com/cloudstack-infrastructure-support/> offers the > best 24/7 SLA for CloudStack Environments. > > Apache CloudStack Bootcamp training courses > > **NEW!** CloudStack 4.2.1 training<http://shapeblue.com/cloudstack-training/> > 18th-19th February 2014, Brazil. > Classroom<http://shapeblue.com/cloudstack-training/> > 17th-23rd March 2014, Region A. Instructor led, > On-line<http://shapeblue.com/cloudstack-training/> > 24th-28th March 2014, Region B. Instructor led, > On-line<http://shapeblue.com/cloudstack-training/> > 16th-20th June 2014, Region A. Instructor led, > On-line<http://shapeblue.com/cloudstack-training/> > 23rd-27th June 2014, Region B. Instructor led, > On-line<http://shapeblue.com/cloudstack-training/> > > This email and any attachments to it may be confidential and are intended > solely for the use of the individual to whom it is addressed. Any views or > opinions expressed are solely those of the author and do not necessarily > represent those of Shape Blue Ltd or related companies. If you are not the > intended recipient of this email, you must neither take any action based upon > its contents, nor copy or show it to anyone. Please contact the sender if you > believe you have received this email in error. Shape Blue Ltd is a company > incorporated in England & Wales. ShapeBlue Services India LLP is a company > incorporated in India and is operated under license from Shape Blue Ltd. Shape > Blue Brasil Consultoria Ltda is a company incorporated in Brasil and is > operated under license from Shape Blue Ltd. ShapeBlue is a registered > trademark. Met vriendelijke groet / Kind regards, Lennert den Teuling Tel direct: +31 (0)118 700 210
