EMC FC4700 Configuration Planning Manual page 4

Contents
Chapter 3
Chapter 4
Chapter 5
iv EMC Fibre Channel Storage System Model FC4700 Configuration Planning Guide
RAID 1/0 Group (Mirrored RAID 0 Group) .........................2-8
Individual Disk Unit .................................................................2-9
Hot Spare ....................................................................................2-9
RAID Benefits and Tradeoffs.........................................................2-12
Performance .............................................................................2-13
Storage Flexibility ....................................................................2-14
Data Availability and Disk Space Usage..............................2-14
Guidelines for RAID Groups ........................................................2-17
Sample Applications for RAID Types..........................................2-19
About MirrorView Remote Mirroring Software
What Is EMC MirrorView Software? .............................................3-2
MirrorView Features and Benefits .................................................3-4
Provision for Disaster Recovery with Minimal Overhead ..3-4
Local High Availability ............................................................3-4
Cross Mirroring..........................................................................3-4
Integration with EMC SnapView LUN Copy Software.......3-5
How MirrorView Handles Failures ...............................................3-5
Primary Image Failure ..............................................................3-5
Secondary Image Failure..........................................................3-6
MirrorView Example........................................................................3-7
MirrorView Planning Worksheet....................................................3-9
About SnapView Snapshot Copy Software
What Is EMC SnapView Software? ................................................4-2
Snapshot Components ..............................................................4-3
Sample Snapshot Session.................................................................4-4
Snapshot Planning Worksheet ........................................................4-5
Planning File Systems and LUNs
Multiple Paths to LUNs ...................................................................5-2
Sample Shared Switched Installation ............................................5-3
Sample Unshared Direct Installation .............................................5-7
Planning Applications, LUNs, and Storage Groups....................5-8
Application and LUN Planning ..............................................5-8
Application and LUN Planning Worksheet ..........................5-9
LUN and Storage Group Planning Worksheet ...................5-10
LUN Details Worksheet..........................................................5-13