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D-Link DNS-343 User Manual

Section 3 - Configuration

RAID, short for Redundant Array of Independent Disks, is a combination of two or more disks with the aim of providing

fault tolerance and improving performance. There are several different levels of RAID, with each one providing a different

method of sharing or distributing data among the drives.

RAID 0

RAID 0 provides

data striping

, which spreads

out blocks of data over all drives, but does not

provide data redundancy.

Although performance is improved, the lack

of fault tolerance means that if one drive fails,

all data in the array will be lost.

RAID 1

RAID 1 provides

mirroring

over multiple disks, with

the same read/write speed of a single disk. A RAID

1 array can only be as large as it’s smallest member

disk.

Because the data is stored on multiple disks,

RAID 1 provides fault tolerance and protection, in

addition to performance advantages.

RAID

Advanced

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D-Link DNS-343 User Manual

Section 3 - Configuration

RAID 5 provides data striping with distributed parity, which stores information that can be used to reconstruct data. A

RAID 5 array will be the size of all the combined disks capacity less the capacity of one disk, e.g. If there are 4x 80GB

disks in the array, the arrays capacity will be 240GB (3x80GB).

Implementing RAID 5 on the DNS-343 allows it to continue operating even if one of the disks fails.

The diagram below indicates the operation of RAID 5.

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D-Link DNS-343 User Manual

Section 3 - Configuration

The DNS-343 supports the following configuration types:

Standard

, where each drive is a unique volume,

JBOD

, which

combines both drives in a linear fashion to create one volume,

RAID 1

and

RAID 5

with a Basic Configuration and a

combination of RAID 0/JBOD, RAID 1/JBOD and RAID 5/JBOD for Custom Configuration.

The following screen appears showing the disks installed in the system. This screen also allows the administrator to

choose a RAID configuration type for this device. Select either

Basic Configuration

or

Custom Configuration

.

Click

Re-configure All Existing Hard Drive(s)

to

setup the RAID configuration.

Note:

All data will be lost when changing the drive

configuration:

Basic Configuration

Custom Configuration

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D-Link DNS-343 User Manual

Section 3 - Configuration

Users and Groups

The Users/Groups menu is used to create and manage user and group accounts. These are used for user access

and read/write privileges for specified folders on the network drive (using the Network Access menu), or to setup FTP

access and privileges. Up to 64 users and 10 groups can be created. By default all users have read and write access

to all folders but access rules can be created in the Network Access menu.

To create user names and passwords in the

User/Group Creation

menu:

• Type a unique User Name for each user added

• Enter and confirm the user Password

• Click

Add

to create the new user.

The user will be added to the

User List

and will be available for assignment

to a user group if you choose to create groups.

To create a Group:

• Select the

Group

option in the

User And Group Creation

menu

• Type a unique group name in the

Add New Group

space and click

Add

.

The group will appear in the

Group List

and will be available for user

assignment in the

Group Settings

menu.

To add a user to a user group, under

Group Settings

:

• Select an available group from the

Select Group

drop-down

menu

• Highlight the user from

List of all users

• Click the

Add>>

button

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D-Link DNS-343 User Manual

Section 3 - Configuration

The user is now listed in the

Users in group

list.

To delete a user from a group, under

Group Setting

:

• Select the group

• Highlight the user to be removed

• Click the

<<Remove

button

To remove a user or group from the User or Group lists, click the trash can icon of that group or user.

To change a user password, click the notepad icon of the user.