Technical white paper
HP P2000 G3 MSA
Best practices
Table of contents
About this document ............................................................................................................................................................ 3
Intended audience ................................................................................................................................................................. 3
Prerequisites .......................................................................................................................................................................... 3
Related documentation ........................................................................................................................................................ 3
The P2000 G3 MSA ............................................................................................................................................................... 3
Topics covered ................................................................................................................................................................... 3
What’s new in the P2000 G3 MSA ................................................................................................................................... 4
Hardware overview ........................................................................................................................................................... 4
Unified LUN Presentation ................................................................................................................................................. 5
Choosing single or dual controllers ................................................................................................................................ 7
Choosing DAS or SAN attach ............................................................................................................................................ 8
Dealing with controller failovers ..................................................................................................................................... 8
Virtual disks ..................................................................................................................................................................... 11
Virtual Disk Expansion Best Practices ......................................................................................................................... 14
Vdisk Expansion Capability for Supported RAID Levels............................................................................................. 14
Vdisk Expansion ............................................................................................................................................................. 14
Vdisk Expansion Recommendations ........................................................................................................................... 15
Allocate “quiet” period(s) to help optimize Vdisk expansion .................................................................................... 15
Re-create the Vdisk with additional capacity and restore data ............................................................................... 15
Volume mapping ............................................................................................................................................................ 16
RAID levels ...................................................................................................................................................................... 16
Cache configuration ....................................................................................................................................................... 17
World Wide Name naming conventions ...................................................................................................................... 19
Fastest throughput optimization ................................................................................................................................. 21
Highest fault tolerance optimization ........................................................................................................................... 21
Boot from storage considerations ............................................................................................................................... 21
Disk Background Scrub, Drive Spin Down, and SMART ............................................................................................. 21
Cascading Array Enclosures .......................................................................................................................................... 23
8 Gb Switches and SFP transceivers ............................................................................................................................ 24
MSA70 considerations ................................................................................................................................................... 24
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