Advantech DNS-3200 user manual Rescanning for Changes in State

Page 61

Rescanning for Changes in State

When using the bcadm program, the disk information that displays when you run a query command is always current. In the RAIDConsole appli- cation, however, the information displayed in the Disk List area is the state of the disks when they were last scanned. If you have not performed a rescan, the information being displayed is the state of the disks at boot time.

Every time you connect or disconnect a disk while online, a message ask- ing if you want to perform a rescan (of all SATA channels) appears. If you choose Yes, the information in both the Array List and the Disk List is updated. However, this view may show arrays as being in a CRITICAL or OFFLINE state if not all disks have been installed or removed.

Although it is highly recommend that you shut down the system before you add or remove disks, you may also be able to add or remove disks while online if your system supports that feature. Because of this feature, RAIDConsole does not automatically perform a rescan when it detects that a disk has been added or removed. For example, if you want to hot- swap a RAID5 set with six disks into a new system, do not perform a res- can until all six disks have been connected. Otherwise, any arrays associ- ated with the disks that are not yet connected change state to either CRITICAL or OFFLINE. If the state of your RAID5 set changes to OFFLINE, you will lose your data. This feature can also result in the state of a disk being reported differently in the Array View and the Disk List. A disk within an array can have a state of FAILED in the Array tree view while at the same time it can show a state of NORMAL in the Disk List.

43

Chapter4

Image 61
Contents 3U Dual Intel Xeon Storage Server with 15 Sata Channels User’s ManualCopyright Acknowledgements Product Warranty 3 years FCC Class a Declaration of ConformityTechnical Support and Assistance FCC Class BUnpacking Your Advantech DNS-3200 Document FeedbackPacking List Safety Instructions Wichtige Sicherheishinweise Page Safety Precaution Static Electricity General Electrical Safety Guidelines General Safety Guidelines ESD Safety Guidelines Removing the chassis covers Operation Safety Guidelines Before accessing the chassisBefore installing the chassis into a rack Reinstalling the chassis coversProduct Compliance Information Electromagnetic Compatibility EMC-Emissions Product SafetyContents Chapter RAID Console Operations Introduction About the Product Hardware FeaturesSystem Protection Software FeaturesDefault layouts may vary depending on the num Front panel is as shown below Product AppearanceDNS-3200 Rear panel Panel Indicators DNS-3200 User’s Manual Chassis Description and Installation Chassis Description Contents of the Accessory KitImportant Safety Guidelines Chassis InstallationSafety Steps Before accessing the chassis Procedures Accessing the SCA Drive Tray and Installing a HDDTools Needed For Triple Redundant Power Supply- 3 x PWS-0050M Procedure Accessing the 760W Power SupplyDNS-3200 User’s Manual Procedure for Installing Chassis Rails Before installing the Chassis railsDNS-3200 User’s Manual Rack Installation DNS-3200 User’s Manual Page DNS-3200 User’s Manual Page DNS-3200 User’s Manual Configuration Turning the system on for the first time Configuration SettingsPage DNS-3200 User’s Manual Page DNS-3200 User’s Manual 2 WSS2003 Activation DNS-3200 User’s Manual 31Chapter3 DNS-3200 User’s Manual Vol/numbers.nspx Intel PROSet Network configuration settingTest Online Active Adapter Fault Tolerance AFT Team ModeNetwork configuration Adaptive Load Balancing ALB Swap Fault Tolerance SFTDynamic Link Aggregation Static Link AggregationManaging Arrays and Disks Understanding Array and Disk States RAID Minimum Disk RequirementsArray States Offline Disk States Rescanning for Changes in State Starting and Stopping Tasks About Sparing Options Working with SparesDedicated Distributed Global Using Distributed Sparing To add a distributed spare while creating an array Distributed Spare field, click EnabledDistributed Spare field, click Disabled Using Dedicated SparingTo add a distributed spare while transforming an array Page Using Global Sparing Bios Configuration Utility When to Use the Bios Configuration Utility Using the Bios Configuration UtilityTo enter the Bios Configuration Utility Initializing Disks from the Bios Color Codes for the Bios Array Config UtilityTo initialize disks from the Bios Creating Arrays from the BiosTo create an array DNS-3200 User’s Manual Create an array Swapping Arrays from the Bios Deleting Arrays from the BiosTo Delete an Array Swap arrays To swap arraysTo hide or Unhide an array Hiding or Unhiding Arrays from the BiosTo view disk details Viewing Disk Details from the BiosRescanning All Channels from the Bios Viewing Array Details from the BiosArray Number Type Size State Name Cache setting DOS size To view array detailsChanging Controller Options from the Bios Change controller options Continue Booting from the Bios DNS-3200 User’s Manual RAID Console Opera- tions RAID Console Management RAID Console OperationsRAID Console RAID list Disk State Area RAID State Area System I/O State DNS-3200 User’s Manual Page Mirror Split Mirror split as a preset optionMirror split as an advanced option Check Hide the newly Split off array Online RAID level migration Online RAID Level MigrationPage DNS-3200 User’s Manual System Maintenance System Protection & Repairs Operating System Split DNS-3200 User’s Manual Operating System Swap DNS-3200 User’s Manual Page DNS-3200 User’s Manual Operating System Repair DNS-3200 User’s Manual Page DNS-3200 User’s Manual Hardware Specifica- tions Table A.1 Hardware Specifications Appendix a Hardware SpecificationsEnvironment DNS-3200 User’s Manual