Power LED Indicator CodesIndicator DescriptionOff Indicates that no power is available to the fan.Solid green Indicates that the power is on.Status LED Indicator CodesIndicator DescriptionOff Indicates normal operating state.Blinking amber Indicates system fault or error condition.Cache Activity LED Indicator CodesThe cache activity LED lights when the storage controller contains cache and when the cache is being transferred fromthe memory to the hard drive.Indicator Indicator CodesOff Indicates that there is no write data in the cache. It is safe to remove the controller when the cacheactivity LED is off.Solid green Indicates that it is safe to remove the controller without loss of cached data. It is safe to remove onecontroller but not both the controllers.Flashes amber Indicates that cache is being transferred from the memory to the hard drive (moving from mirroringmode to journaling mode).CAUTION: Removing the controller from the NAS appliance when the cache LED indicator isflashing amber causes loss of data.Other Information You May NeedWARNING: See the safety and regulatory information that shipped with your system. Warranty information may beincluded within this document or as a separate document.• TheGetting Started Guide provides an overview of setting up your system and technical specifications.• The rack documentation included with your rack solution describes how to install your system into a rack, ifrequired.• TheAdministrator's Guide provides an overview of the tasks that must be completed to configure the NASmanager.• TheDeployment Guide provides information on hardware deployment and the initial deployment of the NASappliance.• TheSystem Placemat provides information on how to rack your system.• Any media that ships with your system that provides documentation and tools for configuring and managing yoursystem, including those pertaining to the operating system, system management software, system updates, andsystem components that you purchased with your system.13