Method used to determine controllers of early and late versions

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Method used to determine controllers of early and late versions:
1. Determine controllers of early and late versions by the appearance of storage devices.
The rear view of a S2300E controller enclosure displays the appearance of the controller.
a. At position ?on the controller enclosure, change the SAS interface of an old version (the shape is a trapezium) to mini interface (the shape is a rectangle).
b. At position ?on the controller enclosure, change the DB9 serial port of an old version to RJ45 serial port for system debugging (the silkscreen is changed to COM2).
c. At position ?on the controller enclosure, add an RJ45 serial port (the silkscreen is changed to COM1) for external UPS management and small system debugging of the device.
2. Determine controllers of early and late versions through command lines.
Log in to the storage's CLI mode. For a controller, enter showctrlboardinfo. For a cascading board, enter showexpboardinfo.
If ST92 is displayed, the controller version is early. If ST91 is displayed, the controller version is late.
OceanStor: admin> showctrlboardinfo
…�?
PCB Version | ST92SPCS VER.A
…�?
Enterprise Storage,Unified Storage,Reason why an UPS degrade alarm is displayed when the UPS is normal,Reason why an UPS degrade alarm is displayed when the UPS is normal:

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Method used to determine primary/secondary controllers
1. Method used to determine primary/secondary controllers: In the storage background: Determine primary/secondary controllers: Log in to the storage's MML mode and enter sys status. master indicates a primary controller. slave indicates a secondary controller. Determine primary/secondary controllers: Log in to the storage's CLI mode and enter showmaster. primary indicates a primary controller and secondary indicates a secondary controller. 2. Primary/Secondary switchover Note: Primary/Secondary switchover must be performed during off-peak hours. a. On the OSM GUI, choose System > System Information > Primary/Secondary Switchover. b. Log in to the storage's CLI mode, enter swapsys, and enter y when y or n is prompted.

How to view the version of an AR
You can run the display version command to view the version of an AR.

Method used to view the CT5000 version
On the TC login page, you can press Ctrl+Alt+A to view the version of CT5000.

Method used to log off the controller
You can log off the controller as follows: 1. Fault location and rectification a. You need to log off the controller when changing boards. b. You need to log off the controller when rebooting the controller. 2. Solution a. Querying the system status Check the master and slave controllers in CLI mode by logging in to the CLI mode and running the showmaster command. If primary is displayed, the controller is a master controller. Perform the following steps. If secondary is displayed, the controller is a secondary controller. Switch to its peer controller and then perform the following steps. b. Logging off the controllers If you want to log off controller B, log in to the CLI mode and run the following command: OceanStor: admin> offline -c b If you want to log off controller A, run the following command: OceanStor: admin> offline -c a c. Confirming that the controller is logged off Go to the man-machine language (MML) mode of the storage system, enter sys status to check whether only one controller is running. In the following information, double is single and normal is offline. If one controller is running and the peer controller is offline, the log-off is successful. spu ui>sys status Double Or Single : [ double ] Master Or Slave : [ master ] Local Controller Status : [ normal ] Peer Controller Status : [ normal ] System Running Status : [ normal mode ]

How to determine whether an AP is faulty
Determine whether an AP is faulty using the following methods: 1. Check whether the AP indicators are in normal state. For description of AP indicators, see Indicator Description in the Hardware Installation and Maintenance Guide of an AP. 2. Log in to the AP through the console port, Telnet/STelnet, or the web system, and check whether the login succeeds. Fit APs do not support the web system. - If the login succeeds, the AP works properly. - If the login fails, restore the factory settings of the AP by holding down Default, and then log in to the AP again. If a Fit AP has been added to an AC offline, run the display ap all command on the AC to view the AP state. If the AP state is normal or download but not fault, the AP works properly.

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