Dell POWERVAULT MD1200 Technical Manualbook

Also see for PowerVault MD1200: Update Hardware owner's manual Getting started Rack Installation Instructions Setting up

Contents

Dell POWERVAULT MD1200 Technical Manualbook Manual pdf 14 page image

** Available in Q3 2010 145.5 Enclosure Management ModuleEach EMM provides the following data path and enclosure management functions for theenclosure:• Monitoring and controlling enclosure environment elements such as temperature, fan,power supplies, and enclosure LEDs.• Controlling access to hard drives.• Communicating enclosure attributes and states to the host server.Figure 7. Enclosure Management ModuleTable 9. EMM Indicator DescriptionEMM INDICATOR AND FETAURE DESCRIPTIONItem Indicator, Button, orConnectorIcon Description1 System Status Indicator Blinks blue when the system identification button is pushed. Youcan identify a particular enclosure in a rack using the systemidentification indicator.2 Debug Port For engineering use only.3 SAS Port (In) IN Provides SAS connections for cabling the host or an up-chainexpansion enclosure (unified mode only).4 In port link status Lights green when all the links to the port are connected.Lights amber when one or more links to the port are notconnected.The LED remains off if enclosure is not connected.5 SAS Port (Out) OUT Provides SAS connections for cabling to the next down chainexpansion enclosure in a daisy chain (unified mode only).NOTE: The SAS port Out is disabled if the enclosure is runningin a split-mode configuration.6 Out port link status Lights green when all the links out of the port are connected.Lights amber when one or more links out of the port are notconnected.The LED remains off if enclosure is not connected.7 EMM Status LED Lights green when the EMM is functioning properly.Lights amber when the enclosure does not boot or is notproperly configured.Blinks green (On 250 ms* Off 250 ms) when a firmwaredownload is in progress.Blinks green (On 1000 ms+ Off 1000 ms) when a peer auto-