User guide

Maintenance Best Practices for Direct-Attached SCSI Solutions
Page 3 of 29
1.0 Revision History. ............................................................................................... 4
2.0 Introduction. ...................................................................................................... 4
3.0 Overview of Steps Ensuring RAID Best Practices. ........................................ 5
CABLING PRACTICES .................................................................................................. 5
MAINTENANCE OF ARRAYS............................................................................................ 5
RECOVERY OF ARRAYS. ............................................................................................... 5
4.0 Cabling Practices .............................................................................................. 6
4.1 Only properly qualified cables should be used........................................................... 6
4.2 Cables should be properly secured to the PV22x and controller........................ 6
4.3 Cables should not be excessively bent.......................................................................... 6
4.4 Cables should not have exposed shielding or cuts in the outer jacket
material ..............................................................................................................................................6
4.5 Cable length should be appropriate for the installation......................................... 6
5.0 Maintenance of Arrays......................................................................................... 7
CONSISTENCY CHECKS FOR RAID ARRAYS......................................................................... 7
5.1 Setup for automated scheduling of consistency checks on Windows
systems. ............................................................................................................................................. 9
5.2 Upgrade firmware, drivers and Array Manager concurrently to the latest
versions............................................................................................................................................15
5.3 Recondition the battery on the RAID/ROMB Controllers (if present)......... 15
5.3.1 Reconditioning the Battery using Array Manager................................................ 16
5.4 Monitor System Event Logs and Array Manager Event Logs. .......................... 17
5.5 Backup and Recovery of Data....................................................................................... 18
6.0 Recovery of Arrays. ........................................................................................ 18
6.1 Capture system logs and details surrounding array failures to assist in the
recovery. ..........................................................................................................................................18
6.2 Write down the exact steps or circumstances that caused the system to
get in the failed state. ................................................................................................................19
Appendix...................................................................................................................... 20
PERC 3\SC\DC\QC AND PERC 4\SC\DC\DI RAID REBUILD BEHAVIOR ................................. 20
1.1 Pre-May 2003 behavior ................................................................................................... 20
1.2 Post May 2003 behavior ................................................................................................. 22
1.3 Array Manager Online help files .................................................................................. 24
1.3.1 Rebuild Completes with Errors on PERC Subsystem 1 Controller. ................ 24
PV220S/PV221S MODE SETTING VERIFICATION .............................................................. 25
2.0 Joined Bus Mode ................................................................................................................ 25
2.1 Split Bus Mode .................................................................................................................... 25
2.2 Cluster Bus Mode ............................................................................................................... 26
CUSTOMER USING LINUX DELLMGR UTILITY...................................................................... 27
2.2.1 Using DellMon. .................................................................................................................... 27
2.2.2 Customer using Ctrl+M utility. ..................................................................................... 29