Hello Stackers, Today morning I saw an interesting question regarding CPU Scaling in the list, which got me to ask the following:
Currently (or in the roadmap) do we have any feature on Nova (regardless of the hypervisor underneath) to set maximum disk I/O throughput a VM can have ? I mean, let's say we have hundreds of VMs under the same host as in production, and for some reason we're lacking performance due to one (or a few of them) being too hungry/greedy for disk reads/writes. Question 1) Is there a way we can set quotas for disk I/O for a (group of) instances ? Like: for this one (or this group), don't exceed the threshold of 50 MB/seg Question 2) Also, do we have anything like vertical scalling ? I mean, like defining CPU and Memory Balloons as extra resources that a set of VMs can make use of (temporarily), if they're demanding to ? Note: I've seen some of the videos of "Heat" talking about increasing horizontally the number of instances behind a load balancer to attend an increasing number of user requests, for instances... Thank you so much. -- Bruno Oliveira Developer, Software Engineer irc: lychinus | skype: brunnop.oliveira brunnop.olive...@gmail.com _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp