Chassis with lock mechanism

Patent metadata

Field	Value
Publication number	US-9933821-B2
Application number	US-201615045957-A
Country	US
Kind code	B2
Filing date	Feb 17, 2016
Priority date	Feb 17, 2016
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

An apparatus may include a chassis that can receive a sled and a locking mechanism. The locking mechanism can mechanically lock the sled to the chassis to prevent a sudden power loss that can be caused from an unexpected removal of the sled from the chassis. To avoid a sudden power loss, a voltage-sensing electrical switch lock can be implemented to the chassis to mechanically lock the sled to the chassis until the sled is ready to be removed. The sled may include one or more computing devices that need to be inactive before removing the sled. The apparatus includes a controller that may detect whether at least one of computing devices in the sled are in an active state or in an inactive state. Based on the determination of the state of the computing devices in the sled, the controller may activate the locking mechanism or de-active locking mechanism.

First claim

What is claimed is:

1. An apparatus, comprising:
a sled comprising one or more computing devices;
a chassis configured for receiving the sled;
at least one locking mechanism configured for mechanically locking the sled to the chassis; and
a controller for the locking mechanism, wherein the controller is configured for:
detecting whether the one or more computing devices in the sled are in an active state or in an inactive state;
in response to detecting that at least one of the one or more computing devices is in the active state, activating the locking mechanism;
determining that the apparatus has an A/C power failure;
performing a data backup process in a memory device of the sled;
receiving a notification indicating that the data backup process has been completed; and
deactivating the locking mechanism.

2. The apparatus of claim 1 , wherein the locking mechanism comprises at least a solenoid switch mounted on the sled for selectively energizing a solenoid, the solenoid switch comprises a switch rod that axially moves in the solenoid.

3. The apparatus of claim 2 , wherein activating the locking mechanism, the controller is further configured for:
actuating the solenoid switch associated with the sled by electrically energizing the solenoid, the energization of the solenoid produces a magnetic force to move the switch rod to be extended and engaged with the sled.

4. The apparatus of claim 2 , wherein deactivating the locking mechanism, the controller is further configured for:
de-actuating the solenoid switch associated with the sled by electrically de-energizing the solenoid, the de-energization of the solenoid causes the switch rod to be retracted into the solenoid.

5. The apparatus of claim 1 , wherein in response to detecting that the at least one of the computing devices is in the active state, activating the locking mechanism, the controller is further configured for:
performing a data backup process in a memory device of the sled;
receiving a notification indicating that the data backup process has been completed; and
in response to receiving the notification, deactivating the locking mechanism.

6. The apparatus of claim 5 , wherein in response to detecting that the at least one of the computing devices is in the active state, activating the locking mechanism, the controller is further configured for:
providing a threshold voltage value to the sled to remain in the active state while the data backup process is being performed.

7. The apparatus of claim 1 , wherein detecting whether the at least one of computing devices in the sled are in the active state or in the inactive state, the controller is further configured for:
determining a voltage value of the at least one of computing devices in the sled;
determining the voltage value of the at least one of computing devices is above a threshold voltage value; and
determining that the sled is in active state.

8. The apparatus of claim 1 , wherein the controller is further configured for: receiving a removal request to mechanically disconnect the sled from the chassis.

9. The apparatus of claim 1 , wherein the controller is a chassis baseboard management controller (BMC).

10. The apparatus of claim 1 , wherein the controller is a sled baseboard management controller (BMC).

11. The apparatus of claim 1 , wherein the controller is a rack baseboard management controller (BMC).

12. A method, comprising:
detecting whether computing devices in a sled of a chassis are in an active state or in an inactive state;
in response to detecting that at least one of the computing devices is in the active state, activating a locking mechanism;
determining that the chassis has an A/C power failure;
performing a data backup process in a memory device of the sled;
receiving a notification indicating that the data backup process has been completed; and
deactivating the locking mechanism.

13. The method of claim 12 , wherein activating the locking mechanism, comprising:
actuating a solenoid switch associated with the sled by electrically energizing a solenoid, the energization of the solenoid produces a magnetic force to move a switch rod to be extended and engaged with the sled.

14. The method of claim 12 , wherein deactivating the locking mechanism, comprising:
de-actuating the solenoid switch associated with the sled by electrically de-energizing the solenoid, the de-energization of the solenoid causes the switch rod to be retracted into the solenoid.

15. The method of claim 12 , further comprising:
performing a data backup process in a memory device of the sled;
receiving a notification indicating that the data backup process has been completed; and
in response to receiving the notification, deactivating the locking mechanism.

16. A non-transitory computer-readable medium storing instructions which, when executed by a system controller, cause the system controller to perform operations comprising:
detecting whether computing devices in a sled of a chassis are in an active state or in an inactive state;
in response to detecting that at least one of the computing devices is in the active state, activating a locking mechanism;
determining that the chassis has an A/C power failure;
performing a data backup process in a memory device of the sled;
receiving a notification indicating that the data backup process has been completed; and
deactivating the locking mechanism.

17. The non-transitory computer-readable medium of claim 16 , wherein the instructions, when executed, further cause the system controller to perform operations comprising:
providing a threshold voltage value to the sled to remain in the active state while a data backup process is being performed.

18. The non-transitory computer-readable medium of claim 16 , wherein the instructions, when executed, further cause the system controller to perform operations comprising:
determining a voltage value of the at least one of computing devices in the sled;
determining that the voltage value of the at least one of computing devices is above a threshold voltage value; and
determining that the sled is in active state.

19. The non-transitory computer-readable medium of claim 16 , wherein the instructions, when executed, further cause the system controller to perform operations comprising:
receiving a removal request to mechanically disconnect the sled from the chassis.

20. The non-transitory computer-readable medium of claim 16 , wherein the system controller is a basement management controller (BMC).

21. An apparatus, comprising:
a sled comprising one or more computing devices;
a chassis configured for receiving the sled;
at least one locking mechanism configured for mechanically locking the sled to the chassis; and
a controller for the locking mechanism, wherein the controller is configured for:
detecting whether the one or more computing devices in the sled are in an active state or in an inactive state;
in response to detecting that at least one of the one or more computing devices is in the active state, activating the locking mechanism;
determining voltage values of the one or more computing devices in the sled;
determining that a voltage value of one computing device of the one or more computing devices is above the threshold voltage value; and
determining that the sled is in active state.

Assignees

• Quanta Comp Inc

Inventors

• Huang Jen-Hsuen
• Lin Fa-Da
• Yu Chih-Wei
• Yang Chih-Wei

Classifications

• G06F21/80

  in storage media based on magnetic or optical technology, e.g. disks with sectors (preventing unauthorised reproduction or copying of disc-type recordable media G11B20/00) · CPC title

• G06F1/181

  Enclosures (for portable computers G06F1/1613) · CPC title

• G06F1/185

  Mounting of expansion boards · CPC title

• G06F2201/84

  Using snapshots, i.e. a logical point-in-time copy of the data · CPC title

• G06F2221/2147

  Locking files · CPC title