gcloud preview compute disks start-async-replication

INFORMATION
gcloud preview compute disks start-async-replication is supported in universe domain universe; however, some of the values used in the help text may not be available. Command examples may not work as-is and may requires changes before execution.
NAME
gcloud preview compute disks start-async-replication - start asynchronous replication on a Compute Engine persistent disk
SYNOPSIS
gcloud preview compute disks start-async-replication DISK_NAME --secondary-disk=SECONDARY_DISK (--region=REGION     | --zone=ZONE) (--secondary-disk-region=SECONDARY_DISK_REGION     | --secondary-disk-zone=SECONDARY_DISK_ZONE) [--secondary-disk-project=SECONDARY_DISK_PROJECT] [GCLOUD_WIDE_FLAG …]
DESCRIPTION
(PREVIEW) gcloud preview compute disks start-async-replication starts async replication on a Compute Engine persistent disk. This command must be invoked on the primary disk and --secondary-disk must be provided.
EXAMPLES
Start replication from the primary disk 'my-disk-1' in zone us-east1-a to the secondary disk 'my-disk-2' in zone us-west1-a: 
gcloud preview compute disks start-async-replication my-disk-1 --zone=us-east1-a --secondary-disk=my-disk-2 --secondary-disk-zone=us-west1-a
POSITIONAL ARGUMENTS
DISK_NAME
Name of the disk to operate on.
REQUIRED FLAGS
--secondary-disk=SECONDARY_DISK
Secondary disk for asynchronous replication. This flag is required when starting replication.
Exactly one of these must be specified:
--region=REGION
Region of the disk to operate on. If not specified, you might be prompted to select a region (interactive mode only).

To avoid prompting when this flag is omitted, you can set the compute/region property: 

gcloud config set compute/region REGION

A list of regions can be fetched by running: 

gcloud compute regions list

To unset the property, run: 

gcloud config unset compute/region

Alternatively, the region can be stored in the environment variable CLOUDSDK_COMPUTE_REGION.

--zone=ZONE
Zone of the disk to operate on. If not specified and the compute/zone property isn't set, you might be prompted to select a zone (interactive mode only).

To avoid prompting when this flag is omitted, you can set the compute/zone property: 

gcloud config set compute/zone ZONE

A list of zones can be fetched by running: 

gcloud compute zones list

To unset the property, run: 

gcloud config unset compute/zone

Alternatively, the zone can be stored in the environment variable CLOUDSDK_COMPUTE_ZONE.

Exactly one of these must be specified:
--secondary-disk-region=SECONDARY_DISK_REGION
Region of the secondary disk for asynchronous replication. Overrides the default compute/region property value for this command invocation.
--secondary-disk-zone=SECONDARY_DISK_ZONE
Zone of the secondary disk for asynchronous replication. Overrides the default compute/zone property value for this command invocation.
SECONDARY DISK FLAGS
--secondary-disk-project=SECONDARY_DISK_PROJECT
Project of the secondary disk for asynchronous replication.
GCLOUD WIDE FLAGS
These flags are available to all commands: --access-token-file, --account, --billing-project, --configuration, --flags-file, --flatten, --format, --help, --impersonate-service-account, --log-http, --project, --quiet, --trace-token, --user-output-enabled, --verbosity.

Run $ gcloud help for details.

NOTES
This command is currently in DEVELOPER PREVIEW and may change without notice. If this command fails with API permission errors despite specifying the correct project, you might be trying to access an API with an invitation-only early access allowlist. These variants are also available: 
gcloud compute disks start-async-replication
 
gcloud alpha compute disks start-async-replication
 
gcloud beta compute disks start-async-replication