Specifications

DS300f G2 Series User Manual
124
ManaGInG the raId Controllers (Clu)
RAID controller management includes the following functions:
• "Viewing Controller Information (CLU)" on page 124
• "Making Controller Settings (CLU)" on page 124
• "Locating the Controller (CLU)" on page 125
vIewInG controller InformatIon (clu)
Controller Management includes information, settings and statistics.
To access Controller Management:
1. From the Main Menu, highlight Subsystem Management and press Enter.
2. Highlight Controller Management and press Enter.
The Controller summary information includes:
• Controller ID
–1or2
• Alias–ifassigned
• Operational Status–OKmeansnormal.MightshowBGArunning.Not
presentindicatesamalfunctionornocontrollerisinstalled
• Readiness Status–ActiveorStandbyisnormal.N/Ameansnotaccessible
3. Highlight the controller you want and press Enter.
To access additional controller information, highlight Advanced Information and press Enter.
To access controller statistics, highlight Controller Statistics and press Enter.
cleAring stAtistics
To clear controller statistics, see "Clearing Statistics (CLU)" on page 167.
clearInG an orPhan watermark (clu)
This condition is the result of a disk drive failure during an NVRAM RAID level migration on a disk array.
To clear an orphan watermark:
1. From the Main Menu, highlight Subsystem Management and press Enter.
2. Highlight Controller Management and press Enter.
3. Highlight one of the controllers and press Enter.
4. Highlight Clear Orphan Watermark and press Enter.
The condition is cleared. See "Physical Drive Problems" on page <?> for more information.
makInG controller SettInGS (clu)
If your subsystem has two controllers, any settings you make to one controller automatically apply to the other
controller.
To make Controller settings:
1. From the Main Menu, highlight Subsystem Management and press Enter.
2. Highlight Controller Management and press Enter.
3. Highlight the controller you want and press Enter.
4. Highlight Controller Settings and press Enter.
5. Make the following settings as required:
•
TypeanaliasintotheAliaseld.
Maximumof48characters.Useletters,numbers,spacebetweenwordsandunderscore.Analiasis
optional.
•
HighlightLUNAfnityandpressthespacebartotogglebetweenEnabledandDisabled.
RAIDcontrollersmustbesettoActive-Active. See "Making Subsystem Settings (CLU)" on page 122
and
"LUNAfnity"onpage<?>.
•
HighlightCoercionandpressthespacebartotogglebetweenEnabledandDisabled.
Formoreinformation,see“CapacityCoercion”onpage196.
• HighlightCoercion Methodandpressthespacebartotogglethrough:
GB Truncate–Reducesthecapacitytothenearest1GBboundary.
10 GB Truncate–Reducesthecapacitytothenearest10GBboundary.
Grp (group) Rounding–Usesanalgorithmtodeterminetruncation.Resultsinthemaximumamount
ofusabledrivecapacity.
Table Rounding–Appliesapredenedtabletodeterminetruncation.