System and method for location-based device naming

Patent metadata

Field	Value
Publication number	US-9747032-B2
Application number	US-201414276611-A
Country	US
Kind code	B2
Filing date	May 13, 2014
Priority date	May 13, 2014
Publication date	Aug 29, 2017
Grant date	Aug 29, 2017

Abstract

A system and method for uniquely identifying a storage device among an array of storage devices of a storage system is provided. In some embodiments, a storage device of the storage system is identified. The storage device may currently lack a name or may have an invalid name. A shelf identifier of a storage device shelf in which the storage device is installed is determined. A stack identifier associated with a connection of the storage device is also determined. The storage system constructs a device name for the storage device based on the shelf identifier and the stack identifier. In some such embodiments, a bay in which the storage device is installed is determined, and the device name is further based on an identifier of the bay. The device name may include the stack identifier, the shelf identifier, and/or the identifier of the bay.

First claim

What is claimed is:

1. A method comprising:
Determining, by a computing device, a shelf identifier of a storage device shelf in which a network storage device installed;
Determining, by the computing device, a stack identifier associated with a network communication path of the storage device shelf in which the network storage device is installed and coupled to the network communication path, wherein the determining of the stack identifier further comprises querying, by the computing device, a table using the shelf identifier to determine when a corresponding entry exist that specifies the stack identifier, querying, by the computing device, the table to determine when each storage device shelf coupled to a given stack maps to a single stack identifier; and updating, by the computing device, the table to assign a new stack identifier to each storage device shelf coupled to the given stack, when the determining indicates that each storage device shelf coupled to the given stack does not map to a single stack identifier; and
Constructing, by the computing device, a device name for the network storage device based on the shelf identified and the stack identifier.

2. The method of claim 1 , further comprising:
Determining, by the computing device, a bay in which the network storage device is installed, wherein the constructing the device name is further based on an identifier of the bay.

3. The method of claim 1 , further comprising:
Determining, by the computing device, a bay in which the network storage device is installed, wherein the constructing the device name is further based on a identifier of the bay.

4. The method of claim 2 , wherein the device name includes the stack identifier, the shelf identifier, and the identifier of the bay.

5. The of claim 1 , wherein the corresponding entry is a first entry, and wherein the determining of the stack identifier further comprises when the determining indicates that the first entry does not exist in the table:
querying, by the computing device, the table using another shelf identifier associated with another storage device shelf communicatively coupled to stack also communicatively coupled to the storage device shelf; and
Determining, by the computing device, when a second entry exists that corresponds to the another storage device shelf and that specifies the stack identifier; and
Updating, by the computing device, the table based on the stack identifier and the shelf identifier and the shelf identifier when the determining that the second entry exists.

6. The method of claim 5 , wherein the determining of the stack identifier further comprises when the determining indicates that the second entry does not exist in the table:
Assigning, by the computing device, an unused stack identifier as the stack identifier; and
Updating, by the computing device, the table based on the assigned stack identifier and the shelf identifier.

7. The method of claim 1 , further comprising:
Querying, by the computing device, the table to determine when a single stack identifier has been assigned to two or more stacks; and
Updating, by the computing device, the table to assign a new stack identifier to at least one of the two or more stacks when the determining indicates that the single stack identifier has been assigned to two or more stacks.

8. The method of claim 1 , wherein the identifying of the storage device includes at least one of:
Detecting, by the computing device, that the network storage device has been added;
Detecting, by the computing device, that a configuration of the computing device has changed; or
Receiving, by the computing device, a user command.

9. A computing device comprising:
a memory containing machine readable medium comprising machine executable code having stored thereon instructions for performing a method for uniquely identifying a storage device; and
a processor coupled to the memory, the processor configured to execute the machine executable code to cause the processor to:
determine a shelf identifier of a storage device shelf in which a storage device is installed;
determine a stack identifier associated with a network communication path of the storage device shelf in which the storage device is installed and coupled to the network communication path, wherein the determine the stack identifier further comprises;
query a table using the shelf identifier to determine when a first entry exists that specifies the stack identifier;
query the table to determine when each storage device shelf coupled to given stack maps to a single stack identifier;
update the table to assign a new stack identifier to each storage device shelf coupled to the given stacks, when the determination indicates that each storage device shelf coupled to the given stack does not map to a single stack identifier; and
construct a device name for the storage device based on the shelf identifier and the stack identifier.

10. The device of claim 9 , wherein the determine the stack identifier further comprises machine executable code to cause the processor to:
querying a table using the shelf identifier to determine when a first entry exists that specifies the stack identifier;
query the table using another shelf identifier associated with another storage device shelf communicatively coupled to the storage device shelf when the query indicates that the first entry does not exist in the table;
determine when a send a second entry exist that corresponds to the another storage device shelf and that specifies the stack identifier; and
update the table based on the stack identifier and the shelf identifier when the determination indicates that the second entry exist.

11. The device of claim 10 , wherein the processor is further configured to execute the machine executable code to:
Assign an unused stack identifier as the stack identifier when the determination indicates that the second entry does not exist in the table; and
Update the table based on the assigned stack identifier and the shelf identifier.

12. The device of claim 9 wherein the processor is further configured to execute the machine executable code to:
Querying the table to determine when a single stack identifier has been assigned to two or more stacks; and
Update the table to assign a new stack identifier to at least one of the two or more stacks when the determination indicates that the single stack identifier has been assigned to two or more stacks.

13. A non-transitory computer readable medium having stored thereon instructions for performing a method comprising machine executable code which when executed by at least one machine, causes the machine to:
determine a shelf identifier of a storage device shelf in which a network storage device is installed;
determine a stack identifier associated with a network communication path of the network storage device shelf in which the network storage device is installed and coupled to the network communication path, wherein the determine the stack identifier further comprises;
query a table using the shelf identifier to determine when a first entry exists that specifies the stack identifier;
query the table to determine when each storage device shelf coupled to a given stack maps to a single stack identifier;
update the table to assign a new stack identifier to each storage device shelf coupled to the given stack, when the determination indicates that each storage device shelf coupled to the given stack does not map to a single stack identifier; and

construct a device name for the network storage device based on the shelf identifier and the stack identifier.

14

Assignees

• Netapp Inc

Inventors

• Barron Edward
• Silva James

Classifications

• G06F3/0632

  by initialisation or re-initialisation of storage systems · CPC title

• H04L61/3045

  Electricity · mapped topic

• G06F17/30914

  Physics · mapped topic

• H04L61/609

  Electricity · mapped topic

• H04L67/1097

  for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS] · CPC title