Virtualization
We want to buy 2 new servers and load them up with processing power and ram and then migrate our current physical machines (we have 15 physical servers and 4 virtual using hyper-v) to virtual using hyper-v. I would like to know if it would be a good idea to have all our vms on one live host and then have the other offline host as a mirror image of the first host with real-time replication from the online host to the offline. We are also thinking to use the internal host server hard drives as storage instead of an external SAN. Are there any drawbacks to this? Would there be a better or more efficient way to go about this and why?
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best to use SAN as common storage for both servers. because if one server is down, your vm still function if both are in the same team.
ASKER
but if one server is the the mirror image of the other and one server is the online one while the second is offline, wouldn't it be a matter of just turning on the offline server if the online server fails? Then basically the offline server would have all of the info of the online server. Not sure if it works this way which is where my confusion comes in. Thanks!
That is certainly possible, what you propose.
How much downtime do you want?
You could have pair of hosts, and use Hyper-V replica to replicate your VMs from one server to the other, for DR if a host should fail.
OR, two hosts, a SAN and a Cluster.
How much downtime do you want?
You could have pair of hosts, and use Hyper-V replica to replicate your VMs from one server to the other, for DR if a host should fail.
OR, two hosts, a SAN and a Cluster.
ASKER
Is there an advantage of doing it one way over the other? What's the impact in each scenario in terms of down time?
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Hyper-V HA, 1-2 mins of downtime
Hyper-V replica, a lot longer.
Hyper-V replica, a lot longer.
ASKER
Makes sense. Thank you for your help!
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Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.
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