Migration with local storage

[TheKunalSen]

i have created a vm using the local storage of the host itself and it worked but if i put thehost in maintainance mode to test the auto migration in HA the host is not entering into maintainance mode it is saying error in maintainance

so in this case the vm is not getting migrated to another host , this is only happening when the host itself is having the root disk in its local storage in this case the ha is not happening but

in another hand if i put the root disk in shared storage then the host is going into maintanance and all and the vm is also getting migrated

so my question is if i create a vm with local storage, how the ha would be possible cause if that host goes down then can cloudstack migrate the root disk from that localstorage to some another storage?

[weizhouapache]

The "Local" storage is attached the host only, it is not accessible to other hosts.

Do you have any rough idea how to get the data on local storage if host goes down ?

[TheKunalSen]

no i do not think so if the host goes down its storage can be accessed from any other hosts!!!!

[weizhouapache]

@TheKunalSen
Right, VM HA will not work for VMs using local storage if the host goes down. In fact, the VM cannot even be restarted on another host because the disk exists only on the original host.

When users choose local storage, they need to consider both the pros (e.g., better performance) and the cons (e.g., no VM HA / limited recoverability).

CloudStack does support VM live migration and offline volume migration from local storage to another local or shared storage. You can perform the migration from the VM or volume page in the UI.

[TheKunalSen]

yes