Leveraging multi-channel SSD for application-optimized workload and raid optimization
A method for use in a computing system, the method comprising: identifying plurality of storage devices; generating a plurality of virtual drive sets, each virtual drive set corresponding to a different one of the plurality of storage devices, each virtual drive set including a plurality of virtual drives, such that each of the virtual drives in the virtual drive set is mapped to a different portion of the virtual drive set's corresponding storage device; instantiating a plurality of storage drive arrays, each of the storage drive arrays being formed of virtual drives from different virtual drive sets; instantiating a plurality of logical units, each of the logical units being instantiated on a different one of the plurality of storage drive arrays; and assigning at least some of the logical units to different software components that are executed on the computing system.
1. A method for use in a computing system, the method comprising:
identifying plurality of storage devices;
generating a plurality of virtual drive sets, each virtual drive set corresponding to a different one of the plurality of storage devices, each virtual drive set including a plurality of virtual drives, such that each of the virtual drives in the virtual drive set is mapped to a different portion of the virtual drive set's corresponding storage device;
instantiating a plurality of storage drive arrays, each of the storage drive arrays being formed of virtual drives from different virtual drive sets;
instantiating a plurality of logical units, each of the logical units being instantiated on a different one of the plurality of storage drive arrays; and
assigning at least some of the logical units to different software components that are executed on the computing system,
wherein any of the virtual drives includes a device identifier and a channel identifier, the device identifier identifying a given one of the plurality of storage devices, and the channel identifier identifying a channel in the given storage device that is assigned to the virtual drive.
2. The method of claim 1 , wherein each of the storage devices includes a multi-channel storage device, and the virtual drives in any of the virtual drive sets are mapped to different channels of the virtual drive set's corresponding storage device.
3. The method of claim 1 , wherein the storage drive array includes a Redundant Array of Independent Disks (RAID) array.
4. The method of claim 1 , wherein generating any of the plurality of virtual drive sets includes selecting one of the plurality of storage devices, identifying a plurality of channels in the selected storage device, instantiating a plurality of virtual drives, and assigning each of the identified channels to a different one of the instantiated virtual drives.
5. The method of claim 1 , wherein any of the virtual drives is configured to implement an interface for storing data in a set of memory blocks that is associated with the virtual drive's respective channel.
6. The method of claim 1 , wherein any of the virtual drives includes a virtual block device object.
7. A system, comprising:
a memory; and
at least one processor operatively coupled to the memory, the at least one processor being configured to perform the operations of:
identifying plurality of storage devices;
generating a plurality of virtual drive sets, each virtual drive set corresponding to a different one of the plurality of storage devices, each virtual drive set including a plurality of virtual drives, such that each of the virtual drives in the virtual drive set is mapped to a different portion of the virtual drive set's corresponding storage device;
instantiating a plurality of storage drive arrays, each of the storage drive arrays being formed of virtual drives from different virtual drive sets;
instantiating a plurality of logical units, each of the logical units being instantiated on a different one of the plurality of storage drive arrays; and
assigning at least some of the logical units to different software components that are executed in the system,
wherein any of the virtual drives includes a device identifier and a channel identifier, the device identifier identifying a given one of the plurality of storage devices, and the channel identifier identifying a channel in the given storage device that is assigned to the virtual drive.
8. The system of claim 7 , wherein each of the storage devices includes a multi-channel storage device, and the virtual drives in any of the virtual drive sets are mapped to different channels of the virtual drive set's corresponding storage device.
9. The system of claim 7 , wherein the storage drive array includes a Redundant Array of Independent Disks (RAID) array.
10. The system of claim 7 , wherein generating any of the plurality of virtual drive sets includes selecting one of the plurality of storage devices, identifying a plurality of channels in the selected storage device, instantiating a plurality of virtual drives, and assigning each of the identified channels to a different one of the instantiated virtual drives.
11. The system of claim 7 , wherein any of the virtual drives is configured to implement an interface for storing data in a set of memory blocks that is associated with the virtual drive's respective channel.
12. The system of claim 7 , wherein any of the virtual drives includes a virtual block device object.
13. A non-transitory computer-readable medium storing one or more processor-executable instructions, which, when executed by at least one processor of a computing system, cause the at least one processor to perform the operations of:
identifying plurality of storage devices;
generating a plurality of virtual drive sets, each virtual drive set corresponding to a different one of the plurality of storage devices, each virtual drive set including a plurality of virtual drives, such that each of the virtual drives in the virtual drive set is mapped to a different portion of the virtual drive set's corresponding storage device;
instantiating a plurality of storage drive arrays, each of the storage drive arrays being formed of virtual drives from different virtual drive sets;
instantiating a plurality of logical units, each of the logical units being instantiated on a different one of the plurality of storage drive arrays; and
assigning at least some of the logical units to different software components that are executed on the computing system,
wherein any of the virtual drives includes a device identifier and a channel identifier, the device identifier identifying a given one of the plurality of storage devices, and the channel identifier identifying a channel in the given storage device that is assigned to the virtual drive.
14. The non-transitory computer-readable medium of claim 13 , wherein each of the storage devices includes a multi-channel storage device, and the virtual drives in any of the virtual drive sets are mapped to different channels of the virtual drive set's corresponding storage device.
15. The non-transitory computer-readable medium of claim 13 , wherein the storage drive array includes a Redundant Array of Independent Disks (RAID) array.
16. The non-transitory computer-readable medium of claim 13 , wherein generating any of the plurality of virtual drive sets includes selecting one of the plurality of storage devices, identifying a plurality of channels in the selected storage device, instantiating a plurality of virtual drives, and assigning each of the identified channels to a different one of the instantiated virtual drives.
17. The non-transitory computer-readable medium of claim 13 , wherein any of the virtual drives is configured to implement an interface for storing data in a set of memory blocks that is associated with the virtual drive's respective channel.