Installation guide

Technical white paper | HP MSA 1040/2040
Reverse cabling of expansion enclosures ................................................................................................................... 19
Create Disk Groups across expansion enclosures ..................................................................................................... 19
Drive sparing ................................................................................................................................................................... 20
Implement Remote Snap replication with Linear Storage ........................................................................................ 21
Best practices to enhance performance ......................................................................................................................... 21
Cache settings ................................................................................................................................................................ 21
Other methods to enhance array performance ......................................................................................................... 23
Best practices for SSDs ..................................................................................................................................................... 25
Use SSDs for randomly accessed data ........................................................................................................................ 26
SSD and performance .................................................................................................................................................... 26
SSD Read Cache ............................................................................................................................................................. 26
SSD wear gauge ............................................................................................................................................................. 27
Full Disk Encryption ............................................................................................................................................................ 27
Full Disk Encryption on the MSA 2040 ........................................................................................................................ 27
Best practices for Disk Group expansion ........................................................................................................................ 28
Disk Group expansion capability for supported RAID levels ..................................................................................... 28
Disk Group expansion recommendations ................................................................................................................... 29
Re-create the Disk Group with additional capacity and restore data ...................................................................... 30
Best practices for firmware updates ............................................................................................................................... 30
General MSA 1040/2040 device firmware update best practices ........................................................................... 30
MSA 1040/2040 array controller or I/O module firmware update best practices ................................................ 30
MSA 1040/2040 disk drive firmware update best practices .................................................................................... 31
Miscellaneous best practices ............................................................................................................................................ 31
Boot from storage considerations ............................................................................................................................... 31
8Gb/16Gb switches and small form-factor pluggable transceivers ....................................................................... 31
MSA 1040/2040 iSCSI considerations ......................................................................................................................... 31
IP address scheme for the controller pair ................................................................................................................... 32
Summary ............................................................................................................................................................................. 33