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A data storage controller

A technology for storage devices and storage components, applied in the direction of data processing power supply, electrical digital data processing, digital data processing components, etc., can solve problems that are not designed to reliability or performance level

Inactive Publication Date: 2008-05-07
INT BUSINESS MASCH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Serial ATA (Advanced Technology Attachment) drives (SATA) have not been designed to the same level of reliability or performance as SCSI (Small Computer Serial Interface) drives currently used by enterprise storage systems

Method used

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  • A data storage controller
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Embodiment Construction

[0019] In order to further understand the preferred embodiment of the present invention, it can be observed that when storage devices are virtualized but underutilized, a large number of arrays are not allocated as data extents (extents), or allocated data extents may not be used effectively. Use regularly. Similarly, even if a storage pool is fully allocated, some portion of it may not be needed from an application perspective at any given time.

[0020] Now, there are two possibilities for the power management of the nodes. The first possibility can be characterized as "passive" in that the virtualization controller is transparent to file system power commands. They are passed directly to the appropriate RAID controller for the LBA, which then uses this command to keep the activated part spinning (note, in spun-down but otherwise "good" The RAID components in the state are still "visible" to the virtualization device). In this case, the virtualization appliance performs s...

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PUM

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Abstract

An apparatus for controlling a storage device comprises a monitoring component for monitoring and storing information upon which storage device use can be predicted; a predictor component for predicting storage device use responsive to receipt of the information; and a control component for controlling a power-management-capable device driver to spin up a storage component of the storage device responsive to the predictor component. The apparatus preferably comprises a virtualization layer for addressing virtualized storage components; the virtualization layer is operable to manage its storage capacity responsive to information received from the monitoring component and the predictor component. A corresponding logic method may be provided in hardware or software form.

Description

technical field [0001] The present invention relates to controlling data storage, and more particularly to controlling the spin state of a storage device (ie, the physical readiness state of a storage medium such as a disk). Background technique [0002] Serial ATA (Advanced Technology Attachment) drives (SATA) have not been engineered to the same level of reliability or performance as SCSI (Small Computer Serial Interface) drives currently used by enterprise storage systems. They were not originally designed or intended for continuous availability input / output pressures, or heat and vibration caused by a constant spin (spin at usable speed) state, but for personal or home PCs random and non-uniform usage properties. This has led to concerns about drive reliability in always-on environments, which are typical of enterprise storage systems (especially those with high availability requirements). ) required. [0003] Therefore, it would be beneficial to improve the reliabili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G06F1/32
CPCG06F3/0625G06F1/3221G06F3/0614Y02B60/1246G06F3/0634G06F3/0676Y02D10/00
Inventor A·库珀
Owner INT BUSINESS MASCH CORP