Cordex®CXCHPControllerSoftwareManual|20-Maintainingthecontroller
Notice: TACACS+ credentials (User Name, Secret Key and Password), the Attribute Name, and
Group Attribute Values must contain only printable ASCII characters.
20.8. Flash maintenance
Thissectionofthedocumentcovers,Using Memory Status toseememoryanddiskusage,aswellas
Performing a Flash Refresh whennecessary.
20.8.1. Memory status
TheMemory Status pagedisplaysvariousinformationaboutflash,including:
• Thetypesoffilesthatareusingdiskspace.
• Thetotalamountofdiskspace,andtheamountremaining.
• Thetotalamountofmemory,andtheamountofmemorybeingused.
• Thenumberofcorrectableerrorsonflash.
• Alarms:Thereisonealarm,Disk Almost Full.
Thediskspaceinformationcanbeusedtohelpdeterminewhichfilesaretakingupthemostspaceifthe
controllerrunsoutofdiskspace.AllthisinformationcanbeaccessedbygoingtoController > About >
Storage & Memory.
20.8.2. Flash refresh
Overtime,theflashcanaccumulatecorrectableerrors.Thesecorrectablebiterrorscanbefixedby
performingaflashrefresh.Aflashrefreshwillhappenevery30daysautomatically,butitcanalsobe
manuallytriggered.
To start a flash refresh:
1. GotoController > About > Storage & Memory.
2.
IntheFlash Refresh table,selecttheRun Flash Refresh buttontostartaflashrefresh.
Notice: Flash Refresh is available in OS version 4.70 and later.
20.9. Secure web server
ThecontrollersupportssecurewebaccessviatheHyperTextTransferProtocolSecure(HTTPS)protocol
usingTLSv1.2.
20.9.1. HTTPS and certificate overview
ThecontrollercanprovidesecuredHypertextTransferProtocol(HTTP)overTransportLayerSecurity
(TLS)HTTPS.HTTPSisprovidedbyusingthewell-definedindustrystandardofimplementingcertificates
forsecuredconnections.
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