post /vms/{vmId}/operations/preparetodetach
Prepare To Detach (prepareToDetach)
After the VM is "Fully Cached" and you want to start the detach process, the first task required is "Prepare to detach" the VM from Velostrata. This task takes the VM disks from the Velostrata cache and object store and creates the native data drives in the cloud. A Velostrata exporter is deployed automatically in the cloud to perform this task. The exporter runs through all data disks and converts them to native cloud disks, after this first iteration is completed, the exporter continues to write the changes committed since its previous execution. This task runs in cycles. After sufficient progress has been achieved (3 cycles), the VM is marked as "Ready to Detach". The VM can then be detached from Velostrata in minutes. The Velostrata exporter continues to synchronize the VM disks from cache into the native AWS EBS/Azure drives, until detached or until manually stopped (stop prepare to detach). Once the VM is in the "Ready to Detach" state you will effectively have to "cut over" and will need to schedule a downtime slot for the actual detach action. The VM must be in the Fully Cached state prior to running the prepare to detach operation. If the VM is not in the Fully Cached state, first run the procedure to migrate the VM storage to the cloud. Note - If you want to stop (revert back) after the preparing to detach process has finished, you can stop or rollback the detach process.
Path parameters
vmId (required)
Path Parameter — Virtual machine ID
Consumes
This API call consumes the following media types via the Content-Type request header:
- application/json
Request body
storageSpec TargetStorageSpec (required)
Body Parameter — Storage Specifications
targetStorageSpec (optional) |
TargetStorageSpec
AWSTargetStorageSpec storageType String AWS target storage isEbsEncryption (optional) Boolean Use EBS Encryption for native volumes. Only applicable to AWS. ebsEncryptionKeyAlias (optional) StringEncryption key alias or ARN to be used for encryption. If isEbsEncryption is set to true and this isn't specified the default key will be used. AzureTargetStorageSpec storageAccount String Azure storage account |
Return type
TaskId
value (optional) |
String Entity ID |
_type |
String Task ID Enum: TaskId |
AWS Example data
Content-Type: application/json
{
"storageType": "gp2",
"isEbsEncryption": false,
"_type": "AwsTargetStorageSpec"
}
Azure Example data
Content-Type: application/json
{
"storageAccount": "/subscriptions/a0123bc4-d567-89e1-0111-f21g31h4i151/resourceGroups/rg1519342736-Max/providers/Microsoft.Storage/storageAccounts/sa1513398296ikn",
"_type": "AzureTargetStorageSpec"
}
GCP Example data
Content-Type: application/json
{
"storageType": "standard",
"_type": "GcpTargetStorageSpec"
}
Produces
This API call produces the following media types according to the Accept request header; the media type will be conveyed by the Content-Type response header.
- application/json
Responses
201
Created TaskId
Default
Error ErrorInfo
errorCode (optional) |
String |
url(optional) |
String |
message (optional) |
String |