Power economizing by powering down hub partitions

摘要

An approach to power economization in a spoke and hub environment is presented. When a hub receives a data set from a first spoke, the hub writes the data set to a first partition that is associated with the first spoke. After the data transfer is complete, the hub powers down the first partition. If the first spoke sends additional data transfers to the hub while the first partition is powered down, the hub stores the additional data transfers in a second partition. When the first partition is powered up again, the hub moves the data intended for the first partition and that was stored in the second partition. The data is moved from the second partition to the first partition. The hub may monitor the size of the addition data transfers. If the data transfer is large, the hub may power up the first partition, write the data in the first partition, and move to the first partition any data that was intended for the first partition but written to the second partition while the first partition was powered down.

主权项

1. A computer program product comprising a non-transitory computer-readable storage medium storing computer readable program code configured to:
power down a first partition of a hub comprising a plurality of partitions in response to writing a first data set from a first spoke of a plurality of spokes to the first partition such that the first partition is in a power-down mode, wherein the first partition is associated with the first spoke and each partition is associated with a spoke, each partition communicates with the associated spoke through a transmission control protocol accelerator that transfers data sets from each spoke to the associated partition with one of a parallel stack full offload, a host bus adapter full offload, and a chimney partial offload, each partition comprises first storage devices organized as a redundant array of independent disks (RAID), and the first spoke is three second storage devices joined in a grid with three-way failover; receive a second data set from the first spoke; write the second data set to a second partition of the hub in a power-on mode in response to the first partition being in the power-down mode and the second data set not exceeding a threshold data set size; transfer the second data set from the second partition to the first partition in response to the first partition entering the power-on mode; and power up the first partition of the hub such that the first partition is in the power-on mode and write the second data set to the first partition if the second data set exceeds the threshold data set size.