Fujitsu ETERNUS DX60 Operation Manual page 47

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NAS Interface
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NAS File System Environment
Shared Folder
The shared folder refers to a folder made public on the network as a NAS file system. With this product, by creating a shared folder
and setting access controls, it is possible to capture a backup and snapshot.
When creating a shared folder from the Web Console, the following resources are also created simultaneously.
Resources
NAS volume
NAS backup volume
NAS snapshot volume
NAS system volume
Copy group
Copy pair
The shared folder that is created with this product can be accessed using the following protocols. As it is possible to use the
following protocols simultaneously, it is possible to access a single shared folder from both UNIX and Windows clients.
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CIFS
This protocol is a developed version of SMB which is used in Windows file sharing.
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NFS
This protocol is a protocol used between UNIX based OSs.
NAS Interface
A NAS interface refers to the definition information of a network interface that manages, over a business LAN, a public IP address
for access to the shared folder and information of the port to which this IP address is assigned. When using the VLAN function, it
is possible to configure multiple IP addresses for one port.
Information
There is no relation between the shared folder and the NAS interface. It is possible to reference the same shared folder from any
NAS interface.
The NAS interface maybe assigned to a single port or 2 ports. The type of connections that can be configured are as follows:
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Active-Active connection
A method where 2 ports are used, and an IP address is configured to each. Both ports are enabled, and it is possible to access
the shared folder from either port. In addition, 2 IP addresses can be publicized for clients, and it is possible to distribute the
bandwidth load. In the event that one port is down, as the IP address configuration can be passed on to the other port
automatically, operation with the same IP address can be continued even after recovering from the down time.
A volume where the shared folder will be created.
Multiple shared folders can be configured to a single NAS volume.
A volume for backup of the NAS volume.
When configuring NAS backup is done by a new NAS backup volume, one is created
for each NAS volume. Configuring NAS backup volume is optional.
This is a volume for the NAS volume snapshot.
When using NAS snapshot, one is created for each generation. Configuring NAS
snapshot is optional.
System volumes are used to control NAS volumes.
They are created when a new NAS volume is created. It is created in the same Thin
Provisioning Pool as NAS volume.
Copy group used to back up NAS volume.
This is created only when a NAS backup volume is configured.
A copy pair of a NAS volume and a NAS backup volume.
This is created only when a NAS backup volume is configured.
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Explanation