Chapter 1. Introduction to IBM System Storage N series 9
For more information about N series software features, see IBM System Storage N series
Software Guide, SG24-7129, which is available at this website:
http://www.redbooks.ibm.com/abstracts/sg247129.html?Open
All N series systems support the storage efficiency features, as shown in Figure 1-3.
Figure 1-3 Storage efficiency features
1.3 Software licensing structure
This section provides an overview of the software licensing structure.
1.3.1 Mid-range and high-end
The software structure for mid-range and high-end systems is assembled out of the following
major options:
Data ONTAP Essentials (including one protocol of choice)
Protocols (CIFS, NFS, Fibre Channel, iSCSI)
SnapRestore
SnapMirror
SnapVault
FlexClone
SnapLock
SnapManager Suite
Storage Efficiency features
Snapshot
™
Copies
Point-in-time copies that write only
changed blocks. No performance
penalty.
Virtual Copies (FlexClone
®
)
Near-zero space, instant “virtual”
copies. Only subsequent changes in
cloned dataset get stored.
Thin Provisioning
(FlexVol
®
)
Create flexible volumes that appear to
be a certain size but are really a much
smaller pool.
RAID-DP
®
Protection
(RAID-6)
Protects against double disk failure with
no performance penalty.
Deduplication
Removes data redundancies in
primary and secondary storage.
Save
up to
95%
Save
up to
46%
Save
up to
33%
Save
over
80%
Save
over
80%
Thin Replication
(SnapVault
®
and SnapMirror
®
)
Make data copies for disaster recovery
and backup using a minimal amount of
space.
Save
up to
95%
Data Compression
Reduces footprint of primary
and secondary storage.
Save
up to
87%