Setting Up Dynamicraid; Implementation - Overland Storage SnapServer Administrator's Manual

SnapServer GuardianOS 7.2 Administrator's Guide
Feature
Mixed Drive Types
Volumes
Snapshots
Data Storage
Capacity
Filesystem
Spanning
Quotas/Size Limits Volume size limits can be either

Setting Up DynamicRAID

1. DynamicRAID detects all available disk drives on the SnapServer.
2. Select the parity setting:
• One disk drive – No parity protection only.
• Two or three disk drives – Single-parity protection only.
• Four or more disk drives – Choose either single- or dual-parity protection.
3. The software configures the SnapServer.
4. Use the following options to fine-tune the configuration:
• Storage > Storage Pools (see
• Storage > Volumes (see
• Security > Shares (see

Implementation

DynamicRAID streamlines the storage management experience. During the initial setup,
when making the
The SnapServer automatically configures the RAID array, and the user may optimize the
parity according to the number of drives inserted into the system. A storage pool is then
created that can be divided into volumes for different applications or user groups. These
steps are described in detail in the following sections.
10400317-003 05/2012
DynamicRAID
All drives in a given Storage Pool must
be the same type of drive (for example,
SAS 15K).
Volumes consume space directly from
the storage pool as data is placed on the
volume, and allocated as needed.
Snapshots are by Storage Pool and can
be mounted for individual file recovery.
Data storage capacity for all volumes on
a storage pool is limited by the size of
the storage pool and/or the maximum
size that is set on each volume.
Filesystem is limited to a given Storage
Pool.
specified or unlimited.
"Storage Pools" on page
"Volumes" on page
"Shares" on page
RAID Type Selection, choose DynamicRAID and the type of parity desired.
©2010-12 Overland Storage, Inc.
Setting Up DynamicRAID
Traditional RAID
Different types of drives can be mixed in
a head unit or expansion unit (using
different RAID sets and volumes).
Volumes allocate from the RAID upon
creation of the volume, and volumes
must be manually grown to increase
space for data as needed.
Snapshots are by volume and can be
mounted for either individual file
recovery or volume rollback.
Limited by the storage size on the head
unit plus all the expansion units.
Filesystem can span multiple RAIDs
concatenated together using Instant
Capacity Expansion (ICE) and RAID
grouping.
User and Group quotas can be specified
for each volume.
4-2)
4-10)
7-6)
 A-4