A VVOL datastore is a datastore on which Virtual Volumes are set. The VVOL datastore can be used after creating the VVOL datastore on this product and registering the VMware vCenter Server.
The Clone backup VVOL datastore is used for Clone backup via the virtual machine backup function. Use without registering on the VMware vCenter Server.
Creation of Tier Pool
VVOL datastores and Clone backup VVOL datastores are configured of one Tier pool or combination of two or more Tier pools. For this reason, it is necessary to create the Tier pools beforehand. When using the Automated Storage Tiering function, create the Tiering policy prior to create the Tier pool.
Create the Tiering policy, referring to "Create Tiering Policy" in the Web Console Guide. Create the Tier pool, referring to "Create Tier Pool for Configuring VVOL Datastore / Clone backup VVOL Datastore" in the Web Console Guide.
See
Refer to the Storage Cruiser Operation Guide for Optimization Function for details on Automated Storage Tiering and Tiering policy.
Refer to "Automated Storage Tiering Management" in the Storage Cruiser Operation Guide and the Storage Cruiser Operation Guide for Optimization Function for details on creating Tier pools.
Creation of VVOL Datastore/Clone Backup VVOL Datastore
VVOL datastores are datastores for creating Virtual Volumes. If a VVOL datastore created on this product is registered on the VMware vCenter Server, it can be used as a datastore to locate a virtual machine configured of Virtual Volumes.
One Tier pool or combine two or more Tier pools to create a VVOL datastore, referring to "Create VVOL Datastore" in the Web Console Guide.
Create a VVOL datastore on all ETERNUS Disk storage systems that use Virtual Volumes. It is possible to create multiple VVOL datastores on one ETERNUS Disk storage system.
Point
In the vSphere HA environment, registering datastores on the VMware vCenter Server creates Config type VVOL for the vSphere HA configuration information on a per datastore basis.
Note
A VVOL datastore comprised across multiple ETERNUS Disk storage systems cannot be created.
Do not mix Tier pools with different chunk sizes within the same VVOL datastore.
The chunk size set for the Tier pool is determined based on the maximum pool capacity of the ETERNUS Disk storage system. If you expand the maximum pool capacity after creating a Tier pool, Tier pools with a mix of different chunk sizes may exist within the ETERNUS Disk storage system.
Clone backup VVOL datastores are datastores used for creating Clone backups with the virtual machine backup function (when "Enable" for Clone Backup is selected during policy design). Create one Clone backup VVOL datastore for each ETERNUS Disk storage system on which Clone backups are to be created.
Creation is not necessary when you are not intending to create Clone backups.
Create the Clone backup VVOL datastore by one Tier pool or combining two or more Tier pools, referring to "Create Clone backup VVOL Datastore" in the Web Console Guide.
Point
VVOL datastores and Clone backup VVOL datastores can be configured of a maximum of 16 Tier pools.
Multiple VVOL datastores and Clone backup VVOL datastores can share the same Tier pools as desired. A maximum of 16 can be shared.
Up to a total of 1023 VVOL datastores or Clone backup VVOL datastores can be created.
A name of up to 16 characters can be applied to a VVOL datastore or Clone backup VVOL datastore. Characters that can be used in names are alphanumerical characters, sharps (#), hyphens (-), and underscores (_). Names are not case-sensitive. Names starting with "POOLGROUP" cannot be configured.
The statuses of VVOL datastore and Clone backup VVOL datastore are as follows. The status is displayed in the VVOL Function column on the Web Console VVOL Datastore screen.
Character String Displayed in VVOL Function column | Meaning |
|---|---|
Enable(VVOL) | In use as VVOL datastore |
Enable(CloneBackup) | In use as Clone backup VVOL datastore |
Disable | Virtual Volumes uncreated VVOL datastore |
Point
VVOL datastores for which "Enable(VVOL)" is displayed cannot be deleted.
Configuration Information
The configuration information for VVOL datastores or Clone backup VVOL datastores is saved in both the repository for this product and the ETERNUS Disk storage system. The configuration information is not deleted from the repository for this product, even if this product is deleted from the ETERNUS Disk storage system. In the case that the ETERNUS Disk storage system is deleted from this product and will not be reused, execute the "esfadm esfdata delete" command to delete the VVOL datastore configuration information from this product.
See
Refer to "Repository" for the method of recovering the repository.
Configuration Change of VVOL Datastore
The name and configuration of a created VVOL datastore and Clone backup VVOL datastore can be changed.
Change the configuration, referring to "Change VVOL Datastore" and "Change Clone backup VVOL Datastore" in the Web Console Guide.
Point
If VVOL datastore runs out of space, its space must be expanded.
When the operation of creating a Virtual Volume was performed
Either expand the space of Tier pools constituting a VVOL datastore on which you want to create a Virtual Volume or add a new Tier pool to the VVOL datastore.
When the operation was performed onto an existing Virtual Volume
Expand the space of the Tier pool to which an operated Virtual Volume belongs.
To a VVOL datastore and a Clone backup VVOL datastore, a maximum of 16 Tier pools can be added.
Note
When adding a Tier pool to a VVOL datastore or Clone backup VVOL datastore, specify a Tier pool existing in the same ETERNUS Disk storage system.
Tier pools in the Virtual Volume cannot be deleted from the VVOL datastore.
Tier pools with FTVs cannot be deleted from Clone backup VVOL datastore.
Tier pools of which the VVOL datastore or Clone backup VVOL datastore are configured cannot be deleted.
Deletion of VVOL Datastore
VVOL datastores or Clone backup VVOL datastores that are no longer used can be deleted.
Refer to "Delete VVOL Datastore" and "Delete Clone backup VVOL Datastore" in the Web Console Guide for the deletion method.
Note
Before deleting a VVOL datastore from this product, unmount the VVOL datastore to be deleted from VMware vCenter Server.
A VVOL datastore with a Virtual Volume cannot be deleted.
A Clone backup VVOL datastore with an FTV cannot be deleted.
