Hello Bryan, For concern 1-
There are couple of ways to achieve this. 1- You can use affinity groups ( host anti affinity ) where it will make sure that you applications will be powered on separate hosts. 2- You can use HOST TAG to define your hosts in compute offering. If you want your application to be powered on any specific host. 3- You can create 2 cluster and isolated them by using the TAG either host and storage tag. But if you want to use host_tag then I suggest to use at least 2-2 host for same tag, so that VMs can be powered on if any host goes down, because cloudstack will specifically see the tagged host so if the tagged host is not available then you won’t be able to power on you workload. For Concern 2: For this, I guess you will have to deploy some testing workload on VM and compare the performance with the baremetal, You can use tools like IOmeter, FIO for testing the random and sequential read/write and throughput. Because Databases required good I/O so underlying storage would be the critical component. I hope this helps..! Vivek Kumar Sr. Manager - Cloud & DevOps TechOps | Indiqus Technologies vivek.ku...@indiqus.com <mailto:vivek.ku...@indiqus.com> www.indiqus.com <https://www.indiqus.com/> > On 20-Nov-2022, at 7:17 PM, Bryan Tiang <bryantian...@hotmail.com> wrote: > > Hi Guys, > > Im a Business Development Manager trying to convince our company to convert > our datacenter into a Private Cloud using Cloudstack. Currently things are > set up in a Baremetal sort of set up. Im not super technical, more so on a > business and risk side of things. And to have this approved by our > management, I will need to address some of their concerns. > > Concern 1: > Some of our applications requires High Availability. On a software level, we > have covered this. But on a hardware level, is there a way to deploy our > applications in a way where each HA Service is deployed in a different > physical server (or cluster). This is to avoid any one server taking down the > entire service (assuming both HA Applications are deployed as separate VMs, > but in the same physical server). > > Concern 2: > Is there any benchmarks only that compares the performance of bare metal and > VM? I understand there is a slight drop in performance, but how much is that? > Some of the system we currently deploy on bare metal are MSSQL Databases and > other services that have very high network IO. Are any benchmarks available > online? And can those performance degredations be restored/matched by > compensating with more CPU/RAM allocation to the VM? > > Appreciate the help. > > Regardfs, > Bryan -- This message is intended only for the use of the individual or entity to which it is addressed and may contain confidential and/or privileged information. If you are not the intended recipient, please delete the original message and any copy of it from your computer system. You are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited unless proper authorization has been obtained for such action. If you have received this communication in error, please notify the sender immediately. Although IndiQus attempts to sweep e-mail and attachments for viruses, it does not guarantee that both are virus-free and accepts no liability for any damage sustained as a result of viruses.
