Volume Management

In the navigation pane of the ZStack Private Cloud UI, choose Resource Pool > Volume. Then, the Volume management page is displayed, as shown in Volume Management Page.
Figure 1. Volume Management Page


The Volume management page includes the following three tab pages:
  • Available: Displays a list of the currently available volumes in the system.
  • Not Instantiated: Displays a list of the uninstantiated volumes.
    • Uninstantiated mainly indicates that a volume does not actually occupy any space. Actually, this volume is a conceptual device. This volume will be instantiated after it is attached to a VM instance.
    • Assume that you create a volume. If you select a disk offering for the volume without specifying other resources, the volume that you created is an uninstantiated volume.
  • Deleted: Displays a list of volumes that have been already deleted but not expunged. You can recover or completely delete a deleted volume as needed.
On the Volume management page, you can perform the following operations:
  • Search: Click the Search icon. Then, you can search for a volume by entering its name, UUID, or IP address. You can also use the advanced search method, which is the same as calling the QueryVolume API. For more information, see the CLI manual.
    • When you use the advanced search, note the following:
      • A search syntax includes three parts: a parameter, query condition, and value. For more information about the search syntax, see the Query API section in API Reference.
      • Cross-table queries are supported. Parameters of a search syntax must be separated by a period (.).
      • A combination query with multiple conditions is supported. Multiple search syntaxes must be separated by a space.
    • The following are some advanced search examples:
      • Search volumes not attached to VM instances: vmInstanceUuid is null
      • Search volumes attached to VM instances: vmInstanceUuid is not null
      • Search by VM UUID: vmInstance.uuid=3badf3b51f4447aaabbab9ae5eca5fcb
      • Search by primary storage UUID: primaryStorageUuid=d4c96e17010f4461a5112c19da85410d
  • Tag: Create a tag for resources in a custom manner. With resource tags, you can quickly filter the required resources via tag types and tag names. The Tag button supports the following operations:
    • Filter resource: Click the Tag button. Then, a tag list is displayed. After you select one or more tags in the tag list, resources that bind the tags will be automatically filtered.
    • Display tag: Click the Tag button. Then, a tag list is displayed. If you have too many tags, find the required tags by dragging the scroll bar.
      Note:
      • A tag list is displayed according to different tag roles (admin or tenant). You can switch roles by clicking the Tag drop-down arrow.
      • Resource tags can be sorted in order according to the creation time or tag names (priority: characters > numbers > Chinese characters > English characters). To change the sort order, go to Settings > Global Settings > Advanced, locate Tag sorting field, and click the Edit icon. By default, the tags are sorted in order by tag name.
    • Search tag: In the search box at the top of the tag list, enter either a tag name or a keyword to search for the tag that you want. This operation applies to the scenario with too many tags. We recommend that you use the scroll bar when tags are fewer.
    • Create tag: In the lower left corner of the displayed tag list, click Create Tag. Then, you can create tags as needed. For more information about tag creation and notices, see Tag.
    • Tag management: In the lower right corner of the displayed tag list, click Tag Management. Then, the Tag page is displayed. This page displays a list of tags. On this page, you can create a tag, delete a tag, or unbind a tag from a resource. For more information, see Tag.