Creating new volumes – Seagate BlackArmor NAS 440 User Manual

Page 30

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BlackArmor® NAS User Guide

32

Managing BlackArmor Volumes, Shares, and Storage

This table explains the different levels of RAID supported by your BlackArmor server.

Seagate recommends that only users familiar and comfortable with RAID technology make
changes to the server’s RAID protection.

Creating New Volumes

As a BlackArmor administrator, you can create all the shares you want in the default volume, or
you can create more volumes using BlackArmor Manager. When you create a volume, you can
specify:

The size of the volume

The disk drive(s) you want to use

The level of RAID protection it should have (see page 31)

You can use the same disk drives in multiple volumes providing there is available space on those
drives. For instance, you could use half the space on disk drives 1, 2, and 3 to create Volume A,
and the other half of the space on the same disk drives to create Volume B.

To create a new volume, open BlackArmor Manager (see page 17). Volumes are in the Storage
menu. For more information on volumes, including deleting and modifying volumes, see the
online Help.

Table 1:

Supported RAID Levels for Volumes

RAID Level of Volume

Number of

Disk Drives

Required

Description

RAID 0

(Also known as striping)

2 – 4

A volume where data is distributed evenly

(striped) across the disk drives in equal-sized

sections. A striped volume does not maintain

redundant data, and so offers no data protection.

RAID 1

(Also known as mirroring)

2

A volume where one disk drive is a mirror of the

other (the same data is stored on each disk

drive). Provides data protection.

RAID 5

3 – 4

A volume with RAID 5 uses data striping and par-

ity data to provide redundancy. (Parity is extra

information that’s used to re-create data if a disk

drive fails. In volumes with RAID 5, parity data is

striped evenly across the disk drives with the

stored data.)

RAID 10

4

A volume with RAID 10 is built from two or more

equal-sized RAID 0 volumes. Data in a volume

with RAID 10 is both striped and mirrored.

Span
(Also known as a JBOD

a

)

a.‘Just a Bunch of Disks’.

1 – 4

A group of disk drives in a server, not protected

by RAID.

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