Fujitsu ETERNUS DX100 S4 Design Manual page 135

3. SAN Functions
Server Linkage Functions
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VMware VASA
vStorage API for Storage Awareness (VASA) is an API that enables vCenter Server to link with the
storage system and obtain storage system information. With VMware, VASA integrates the virtual
infrastructure of the storage, and enhances the Distributed Resource Scheduling (DRS) function
and the troubleshooting efficiency.
ETERNUS VASA Provider is required to use the VASA function.
ETERNUS VASA Provider obtains and monitors information from the ETERNUS DX by using func-
tions of ETERNUS SF Storage Cruiser.
• Profile-Driven Storage
The Profile-Driven Storage function classifies volumes according to the service level in order to
allocate virtual machines with the most suitable volumes.
Distributed Resource Scheduler (Storage DRS)
•
The Storage DRS function moves original data in virtual machines to the most suitable storage
area according to the access volume. Storage DRS balances the loads on multiple physical serv-
ers in order to eliminate the need for performance management on each virtual machine.
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VMware VAAI
vStorage APIs for Array Integration (VAAI) are APIs that improve system performance and scalabili-
ty by using the storage system resources more effectively.
The ETERNUS DX supports the following features.
• Full Copy (XCOPY)
Data copying processes can be performed in the ETERNUS DX without the use of a server such as
when replicating or migrating the virtual machine. With Full Copy (XCOPY), the load on the serv-
ers is reduced and the system performance is improved.
Block Zeroing
•
When allocating storage areas to create new virtual machines, it is necessary to zero out these
storage areas for the initialization process. This process was previously performed on the server
side. By performing this process on the ETERNUS DX side instead, the load on the servers is re-
duced and the dynamic capacity allocation (provisioning) of the virtual machines is accelerated.
Hardware Assisted Locking
•
This control function enables the use of smaller blocks that are stored in the ETERNUS DX for ex-
clusive control of specific storage areas.
Compared to LUN (logical volume) level control that is implemented in "VMware vSphere", ena-
bling access control in block units minimizes the storage areas that have limited access using ex-
clusive control and improves the operational efficiency of virtual machines.
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VMware vCenter Server
• vCenter linkage
Various information of the ETERNUS DX can be displayed on vSphere Web Client by expanding
the user interface of VMware Web Client. Because storage side information is more visualized, in-
tegrated management of the infrastructure under a virtual environment can be realized and usa-
bility can be improved.
ETERNUS vCenter Plug-in is required to use this function.
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Design Guide (Basic)
135
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