Fujitsu ETERNUS DX500 S4/DX600 S4 Design Manual page 134

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 functions of ETERNUS
SF Storage Cruiser.
Profile-Driven Storage
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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 servers 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 scalability 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 repli-
cating or migrating the virtual machine. With Full Copy (XCOPY), the load on the servers 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 reduced and the dynamic capacity alloca-
tion (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 exclusive control
of specific storage areas.
Compared to LUN (logical volume) level control that is implemented in "VMware vSphere", enabling access
control in block units minimizes the storage areas that have limited access using exclusive control and im-
proves 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 inter-
face of VMware Web Client. Because storage side information is more visualized, integrated management of
the infrastructure under a virtual environment can be realized and usability can be improved.
ETERNUS vCenter Plug-in is required to use this function.
FUJITSU Storage ETERNUS DX500 S4/DX600 S4, ETERNUS DX500 S3/DX600 S3 Hybrid Storage Systems Design Guide (Basic)
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