● Storage Container (VVOL Datastore)
Storage containers are pools for creating VVOLs. The ETERNUS DX
uses FTRPs as storage containers. Multiple
storage containers can be created in the ETERNUS DX.
● VVOL
VVOLs are logical volumes that are created in FTRPs. Multiple VVOLs can be created in a storage container.
● Maximum VVOL Capacity
The following shows the maximum capacity that can be used for VVOLs from the maximum Thin
Provisioning Pool capacity that is set in the ETERNUS DX.
Table 64 Maximum VVOL Capacity
Item DX100 S5 DX200 S5 DX500 S5 DX600 S5 DX900 S5
Maximum TPP
capacity (reference)
4,096TB
(4PB)
6,144TB
(6PB)
16,384TB
(16PB)
24,576TB
(24PB)
131,072TB
(128PB)
Maximum VVOL
capacity
256TB 256TB 384TB 1,024TB 2,048TB
● VVOL Management Information
Additional information called VVOL management information (metadata) is necessary for VVOLs. VVOL
management information is usually synchronized with the master information in the ETERNUS SF Storage
Cruiser and saved to a dedicated FTV within the ETERNUS DX container. The dedicated FTV is automatically
created in the storage container when creating a VVOL.
Table 65 VVOL Management Information Specifications
Item Explanation
Volume name (fixed) $VVOL_META
Volume type FTV
Usage System
Usage details VVOL Metadata
Capacity 1,040MB
Volume number (of each
ETERNUS DX)
1
3. SAN Functions
Server Linkage Functions
153 Design Guide
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