Pregroomer for storage array

摘要

Techniques are disclosed relating to arranging data on storage media. In one embodiment, a computer system is configured to access a storage array that includes a plurality of storage blocks. The computer system executes a first set of processes and a second set of processes, where the first set of processes operates on selected ones of the plurality of storage blocks to increase a likelihood that the selected storage blocks are operated on by the second set of processes. In some embodiments, the second set of processes determines whether to operate on a storage block based on an amount of invalid data within the storage block. In such an embodiment, the first set of processes increases a likelihood that the storage block is operated on by increasing the amount of invalid data within the storage block.

主权项

1. A non-transitory computer readable medium having program instructions stored thereon, wherein the program instructions are executable by a computer system to cause the computer system to:
select a first of a plurality of erase blocks in a storage array accessible to the computer system; copy a subset of valid data from the first erase block to a second of the plurality of erase blocks; and invalidate the subset of valid data within the first erase block to increase a likelihood that storage capacity of the first erase block will be reclaimed by a groomer, the likelihood based on an amount of indicated invalid data in the first erase block.