ZStack Cloud Platform
Single Server, Free Trial for One Year
-
Documentation&Tools
Comprehensive product documentation and tools
-
Support & Services
Upholding the value of Customer First and the mission of Serving Customer, ZStack is dedicated to providing secure and stable services for customers.
-
Training & Certification
To educate ZStack partners and interested individuals about cloud computing and to cultivate cloud computing talent.
-
Content
ZStack provides innovative cloud infrastructure for ten major industries
VMware-to-ZStack Case Collection
The report provides three major
solutions and customer case studies for transitioning from VMware to ZStack.
ZStack ZSphere 4.10.10>ZStack ZSphere Documentation>ZStack ZSphere User Guide>Compute Management>Image Storage
Image Storage
Image storage acts as a repository for storing image templates containing operating systems, as well as disk images. Through image storage, you can share image files across multiple data centers.
This section introduces how to use image storage from the following chapters:
Image Storage Basic Operations
You can understand the basic operations supported by image storage from the perspective of adding, deleting, modifying, and querying.
Add a Standalone Image Storage
The platform provides multiple entry points to add image storage. You can add an image storage from the following two main entry points:
- In the navigation bar on the left side of the platform page, right-click the target data center and click Add Image Storage.
- In the navigation bar on the left side of the platform page, select the target data center. Then, on the right side of the platform page, click , or in the Image Storage sub-page, click Add Image Storage.
You can refer to the following examples to complete the configuration:
Step 1: Basic Configuration
Basic Information
- Name: Image storage name
- Description: Image storage description
- Type: Displays standalone image storage
- Data Center: Current data center
Configuration Information
- Image Storage IP: IP address of the image storage server
- SSH Port: Default port is 22, supports setting SSH port
- Username: Default is root user, supports setting regular user
- Password: Password for the user
Step 2: Storage Configuration
Disk Configuration
- Addition Method: Supports Free Disk and Local Directory addition methodsIf you choose Free Disk, configure the free disk parameters:
- Free Disk: Add unmounted partitions or unpartitioned disks on the image storage
Note: Configuring a free disk will format the selected disk, completely clearing all partitions, file systems, and data on the disk.
- Free Disk: Add unmounted partitions or unpartitioned disks on the image storage
- Mount Path: The mount path of the storage mounted on the image storage, an absolute path must be setNote: Do not use system directories such as /, /dev/, /proc/, /sys/, /usr/bin, /bin, as this may cause the image storage to malfunction.
- Retrieve Existing Images: Default is off. If turned on, retrieves existing image files in the mount path of this image storage.
- Image Sync Network: The network CIDR used for image synchronization between single-node image repositories within the same management node. If left blank, the management network is used by default. If both the source and target image repositories have this parameter set, only the image sync network of the target image repository takes effect.
- Data Network: The network CIDR used for data communication between compute nodes and the image storage. If left blank, the management network is used by default.
Advanced Settings
- Image Storage Reserved Capacity: Default is 1GB, the capacity reserved for use by the image storage.
- Image Chunk Upload Concurrency: Default is 1, the concurrency of image chunk uploads when uploading a single image. Range: 1~16.
- Image Chunk Download Concurrency: Default is 1, the concurrency of image chunk downloads when downloading a single image. Range: 1~16.
After confirming that the configuration is correct, click OK to add the single-node image repository.
Add a Distributed Image Storage
The platform provides multiple entry points to add image storage. You can add an image storage from the following two main entry points:
- In the navigation bar on the left side of the platform page, right-click the target data center and click Add Image Storage.
- In the navigation bar on the left side of the platform page, select the target data center. Then, on the right side of the platform page, click , or in the Image Storage sub-page, click Add Image Storage.
Basic Information
- Name: Image storage name
- Description: Image storage description
- Type: Displays distributed image storage
- Data Center: Current data center
Configuration Information
- Monitoring Node Management IP: IP address of the distributed monitoring node
- SSH Port: Default port is 22, set the SSH port for the monitoring node
- Username: Default is root user, set the username for the monitoring node
- Password: Password for the username of the monitoring node
- Image Storage Pool: You can pre-create a storage pool in the distributed storage cluster and enter the UUID of the pool. If left blank, a default image storage pool is created automatically.
- Data Network: The network CIDR used for data communication between compute nodes and the image storage. If left blank, the management network is used by default.
Advanced Settings
- Image Storage Reserved Capacity: Default is 1GB, the capacity reserved for use by the image storage.
- Image Chunk Upload Concurrency: Default is 1, the concurrency of image chunk uploads when uploading a single image. Range: 1~16.
- Image Chunk Download Concurrency: Default is 1, the concurrency of image chunk downloads when downloading a single image. Range: 1~16.
Modify an Image Storage
- Navigate to .
- Right-click the image storage and select the action you want to perform from the list of actions that appears.
- If you need to edit the name and description of the image storage, select Edit Name and Description.
- If you need to modify the configuration information of the image storage, select Modify Configuration.
- If you need to update the password for the image storage, select Update Password. After updating, you need to manually reconnect the image storage for the changes to take effect.
View Image Storage Usage
If you need to understand the storage usage information of the image storage, you can navigate to the image storage detail page to view the usage information. You can also clean up invalid data that has been permanently deleted and expired temporary data in the image storage based on your actual situation by clicking .Note: Deleting an image file completely and deleting virtual machines created using that image completely allows you to execute a data cleanup operation to release storage space on the image storage. During data cleanup, please avoid performing data write-related operations.
Note: Deleting an image file completely and deleting virtual machines created using that image completely allows you to execute a data cleanup operation to release storage space on the image storage. During data cleanup, please avoid performing data write-related operations.Delete an Image Storage
If you need to delete an existing image storage, on the target image storage page, click to delete it. You can also delete image storage in bulk on the data center Image Storage sub-page.
Image Basic Operations
You can understand the basic operations supported by images from the perspective of adding, deleting, modifying, and querying.
Add an Image
You can add various formats of system images or disk images to the image storage. When creating a virtual machine for the first time, the system will download the image to the data storage as an image cache. Using a URL or by uploading locally, you can add image files in .qcow2, .iso, .raw, and .vmdk formats to the image storage.
The platform provides multiple entry points to add images. You can add an image from the following two main entry points:
- In the navigation bar on the left side of the platform page, right-click the target image storage and click Add Image.
- In the navigation bar on the left side of the platform page, select the target image storage. Then, on the right side of the platform page, click , or in the Images sub-page, click Add Image.
You can refer to the following example to add an image:
- Image Storage: The current image storage
- Name: Image name
- Description: Image description
- Image Type: Image type, including system images and disk images
- Image Format: Different types of images support different image formats, including .qcow2, .iso, .raw, and .vmdk formats
- Image Path: Add an image through a URL path or by uploading a local file
- URL: Supports adding an image via HTTP/HTTPS/FTP/SFTP format or through an absolute path on a single-node image repository
- Upload File: Choose a file that matches the selected image format and is accessible by the current browser to upload directly
Next Chapter: Virtual Machine