NVS thresholding for efficient data management
AssigneeInternational Business Machines Corporation
InventorsKevin J. Ash, Michael T. Benhase, Lokesh M. Gupta, Kenneth W. Todd
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Abstract
For data management by a processor device in a computing storage environment, a threshold for an amount of Non Volatile Storage (NVS) space to be consumed by any particular logically contiguous storage space in the computing storage environment is established based on at least one of a Redundant Array of Independent Disks (RAID) type, a number of point-in-time copy source data segments in the logically contiguous storage space, and a storage classification.
Claims12
A system for data management in a computing storage environment, comprising:
- a processor device, operable in the computing storage environment, wherein the processor device:
- destages modified data over a certain time period during a quiesce/resume operation of any particular logically contiguous storage space to an amount of Non Volatile Storage (NVS) space upon performing a code load operation by establishing a threshold for the amount of NVS space to be consumed by the any particular logically contiguous storage space in the computing storage environment based on a percentage amount of a number of a plurality of storage devices, a Redundant Array of Independent Disks (RAID) type, a number of point-in-time copy source data segments in the logically contiguous storage space, and a storage classification, wherein establishing the threshold for the amount of NVS to be consumed based on the number of point-in-time copy source data segments in the logically contiguous storage space further includes considering resources needed to perform a Copy Source To Target (CST) operation required prior to the point-in-time copy source data segments being destaged;
- and
- subsequent to establishing the threshold, establishes an additional threshold for the amount of NVS space based on a predefined percentage assigned to the any particular logically contiguous storage space.
A computer program product for data management by a processor device in a computing storage environment, the computer program product comprising a non-transitory computer-readable storage medium having computer-readable program code portions stored therein, the computer-readable program code portions comprising:
- a first executable portion that destages modified data over a certain time period during a quiesce/resume operation of any particular logically contiguous storage space to an amount of Non Volatile Storage (NVS) space upon performing a code load operation by establishing a threshold for the amount of NVS space to be consumed by the any particular logically contiguous storage space in the computing storage environment based on a percentage amount of a number of a plurality of storage devices, a Redundant Array of Independent Disks (RAID) type, a number of point-in-time copy source data segments in the logically contiguous storage space, and a storage classification, wherein establishing the threshold for the amount of NVS to be consumed based on the number of point-in-time copy source data segments in the logically contiguous storage space further includes considering resources needed to perform a Copy Source To Target (CST) operation required prior to the point-in-time copy source data segments being destaged;
- and
- a second executable portion that, subsequent to establishing the threshold, establishes an additional threshold for the amount of NVS space based on a predefined percentage assigned to the any particular logically contiguous storage space.
Dependencies are inferred from the claim text.