- NAME
-
- gcloud compute instances detach-disk - detach disks from Compute Engine virtual machine instances
- SYNOPSIS
-
-
gcloud compute instances detach-disk
INSTANCE_NAME
(--device-name
=DEVICE_NAME
|--disk
=DISK
) [--disk-scope
=DISK_SCOPE
; default="zonal"] [--zone
=ZONE
] [GCLOUD_WIDE_FLAG …
]
-
- DESCRIPTION
-
gcloud compute instances detach-disk
is used to detach disks from virtual machines.Detaching a disk without first unmounting it may result in incomplete I/O operations and data corruption. To unmount a persistent disk on a Linux-based image, ssh into the instance and run:
sudo umount /dev/disk/by-id/google-DEVICE_NAME
- EXAMPLES
-
To detach a disk named 'my-disk' from an instance named 'my-instance', run:
gcloud compute instances detach-disk my-instance --disk=my-disk
To detach a device named 'my-device' from an instance named 'my-instance', run:
gcloud compute instances detach-disk my-instance --device-name=my-device
- POSITIONAL ARGUMENTS
-
INSTANCE_NAME
- Name of the instance to operate on. For details on valid instance names, refer to the criteria documented under the field 'name' at: https://cloud.google.com/compute/docs/reference/rest/v1/instances
- REQUIRED FLAGS
-
-
Exactly one of these must be specified:
--device-name
=DEVICE_NAME
-
Specifies a disk to detach by its device name, which is the name that the guest
operating system sees. The device name is set at the time that the disk is
attached to the instance, and needs not be the same as the persistent disk name.
If the disk's device name is specified, then its persistent disk name must not
be specified using the
flag.--disk
--disk
=DISK
-
Specifies a disk to detach by its resource name. If you specify a disk to remove
by persistent disk name, then you must not specify its device name using the
flag.--device-name
-
Exactly one of these must be specified:
- OPTIONAL FLAGS
-
--disk-scope
=DISK_SCOPE
; default="zonal"-
The scope of the disk.
DISK_SCOPE
must be one of:regional
-
The disk specified in --disk is interpreted as a regional disk in the same
region as the instance. Ignored if a full URI is provided to the
--disk
flag. zonal
-
The disk specified in --disk is interpreted as a zonal disk in the same zone as
the instance. Ignored if a full URI is provided to the
--disk
flag.
--zone
=ZONE
-
Zone of the instance to operate on. If not specified, you might be prompted to
select a zone (interactive mode only).
gcloud
attempts to identify the appropriate zone by searching for resources in your currently active project. If the zone cannot be determined,gcloud
prompts you for a selection with all available Google Cloud Platform zones.To avoid prompting when this flag is omitted, the user can set the
property:compute/zone
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
- 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
-
These variants are also available:
gcloud alpha compute instances detach-disk
gcloud beta compute instances detach-disk
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2024-08-06 UTC.
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