Policy-based bandwidth allocation

Patent metadata

Field	Value
Publication number	US-9521085-B1
Application number	US-201414313094-A
Country	US
Kind code	B1
Filing date	Jun 24, 2014
Priority date	Jun 24, 2014
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

Abstract

In one aspect, a method includes filtering one or more available ports on a data storage system to determine candidate ports based on at least their hardware redundancy information. The data storage system includes one or more data storage volumes. The method also includes allocating one or more ports to the data storage volume from the candidate ports based on parameters to enable communication from a host, using the one or more allocated ports, to the data storage volume through the one or more storage components. The parameters include at least one of a maximum paths parameter, a paths per initiator parameter and a minimum paths parameter.

First claim

What is claimed is:

1. A method comprising:
filtering one or more available ports on a data storage system to determine candidate ports based on at least their hardware redundancy information, the data storage system comprising one or more data storage volumes; and
allocating one or more ports to the data storage volume from the candidate ports based on parameters to enable communications from a host, using the one or more allocated ports, to the data storage volume through the one or more storage components, the host having one or more initiators,
wherein the parameters comprise at least two of a maximum paths parameter to determine a maximum number of ports to allocate, a paths per initiator parameter to determine a number of ports to allocate for each initiator, and a minimum paths parameter to determine a minimum number of ports to allocate.

2. The method of claim 1 , wherein the parameters comprises the maximum paths parameter, the paths per initiator parameter and the minimum paths parameter.

3. The method of claim 1 , further comprising enabling a user to provide the parameters.

4. The method of claim 3 , further comprising enabling a user to dynamically adjust a bandwidth allocated to a volume after it has already been exported by changing a Virtual Pool association of the volume.

5. The method of claim 4 , further comprising enabling a user to dynamically adjust a number of redundant paths providing access to a volume after it has already been exported by changing a Virtual Pool association of the volume.

6. An apparatus, comprising:
electronic hardware circuitry configured to:
filter one or more available ports on a data storage system to determine candidate ports based on at least their hardware redundancy information, the data storage system comprising one or more data storage volumes; and
allocate one or more ports to the data storage volume from the candidate ports based on parameters to enable communication from a host, using the one or more allocated ports, to the data storage volume through the one or more storage components, the host having one or more initiators,

wherein the parameters comprise at least two of a maximum paths parameter to determine a maximum number of ports to allocate, a paths per initiator parameter to determine a number of ports to allocate for each initiator, and a minimum paths parameter to determine a minimum number of ports to allocate.

7. The apparatus of claim 6 , wherein the circuitry comprises at least one of a processor, a memory, a programmable logic device or a logic gate.

8. The apparatus of claim 6 , wherein the parameters comprises the maximum paths parameter, the paths per initiator parameter and the minimum paths parameter.

9. The apparatus of claim 6 , further comprising circuitry configured to enable a user to provide the parameters.

10. The apparatus of claim 9 , further comprising circuitry configured to enable a user to dynamically adjust a bandwidth allocated to a volume after it has already been exported by changing a Virtual Pool association of the volume.

11. The apparatus of claim 10 , further comprising circuitry configured to enable a user to dynamically adjust a number of redundant paths providing access to a volume after it has already been exported by changing a Virtual Pool association of the volume.

12. An article comprising:
a non-transitory computer-readable medium that stores computer-executable instructions, the instructions causing a machine to:
filter one or more available ports on a data storage system to determine candidate ports based on at least their hardware redundancy information, the data storage system comprising one or more data storage volumes; and
allocate one or more ports to the data storage volume from the candidate ports based on parameters to enable communication from a host, using the one or more allocated ports, to the data storage volume through the one or more storage components, the host having one or more initiators,

wherein the parameters comprise at least one of a maximum paths parameter to determine a maximum number of ports to allocate, a paths per initiator parameter to determine a number of ports to allocate for each initiator, and a minimum paths parameter to dtermine a minimum number of ports to allocate.

13. The article of claim 12 , wherein the parameters comprises the maximum paths parameter, the paths per initiator parameter and the minimum paths parameter.

14. The article of claim 12 , further comprising instructions causing the machine to enable a user to provide the parameters.

15. The article of claim 14 , further comprising instructions causing the machine to enable a user to dynamically adjust a bandwidth allocated to a volume after it has already been exported by changing a Virtual Pool association of the volume.

16. The article of claim 15 , further comprising instructions causing the machine to enable a user to dynamically adjust a number of redundant paths providing access to a volume after it has already been exported by changing a Virtual Pool association of the volume.

Assignees

• Emc Corp

Inventors

• Watson Thomas Lee
• Ninan Anoop George

Classifications

• H04L47/627

  policing · CPC title

• H04L47/522 Primary

  Dynamic queue service slot or variable bandwidth allocation · CPC title

• H04L69/14

  Multichannel or multilink protocols · CPC title

• H04L69/40

  for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection (management of faults, events, alarms or notifications in data switching networks H04L41/06) · CPC title

• H04L67/1097 Primary

  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