Installation guide

Manual No. 771971 xi
Appendix A
Enclosure Management
Introduction ........................................................................................A-1
SAF-TE ..............................................................................................A-1
Appendix B
Intelligent Battery Backup Unit
Product Description ...........................................................................B-1
Features .....................................................................................B-1
IBBU Components .....................................................................B-1
IBBU Specifications ...........................................................................B-2
Electrical .....................................................................................B-2
On-board Battery ........................................................................B-2
Battery Charge Life ....................................................................B-2
External Battery ..........................................................................B-2
Module Dimensions ....................................................................B-2
Environmental ............................................................................B-2
Functional Description .......................................................................B-3
General Operational Description ................................................B-3
Status Indication .........................................................................B-3
Battery and Charge Circuit .........................................................B-4
Installation .........................................................................................B-5
Mechanical Installation Procedure .............................................B-5
Operation ...........................................................................................B-7
Battery Conditioning Prior to Use ...............................................B-7
Set-up – Enabling the Write-Back Cache ...................................B-7
Maintenance ...............................................................................B-7
Battery Backup Capacity ...................................................................B-8
Calculations for Battery Duration ...............................................B-8
Removing the Battery Backup Module .......................................B-9
Recycling the Battery ...............................................................B-10
Glossary
Battery Backup Unit .............................................................................. 1
Cache ................................................................................................... 1
Cache Flush ......................................................................................... 1
Cache Line Size ................................................................................... 1
Channel ................................................................................................ 1
Consistency Check ............................................................................... 1
Disk Failure Detection .......................................................................... 2
Disk Media Error Management ............................................................. 2
Drive Groups (or Drive Packs) .............................................................. 2