US 9,519,556 B2 · Member replacement in an array of information storage devices

Abstract

An information handling system includes a method for detecting a predictive failure indication for a predictive failure indicated physical disk of a disk group, determining an amount of used storage capacity of a lowest capacity physical disk of the disk group, and comparing a replacement physical disk storage capacity of a replacement physical disk to the used storage capacity. When the replacement physical disk capacity is greater than or equal to the used storage capacity even if the replacement physical disk capacity is less than a lowest storage capacity of the lowest capacity physical disk of the disk group, replacing the predictive failure indicated physical disk with the replacement physical disk.

Claims17

Dependent claims

A method comprising:

detecting a predictive failure indication for a predictive failure indicated physical disk of a disk group in an information storage subsystem;
determining an amount of used storage capacity of a lowest capacity physical disk of the disk group;
comparing a replacement physical disk storage capacity of a replacement physical disk to the used storage capacity;
when the replacement physical disk capacity is greater than or equal to the used storage capacity even if the replacement physical disk capacity is less than a lowest storage capacity of the lowest capacity physical disk of the disk group, replacing the predictive failure indicated physical disk with the replacement physical disk;
and
when a higher capacity replacement physical disk having a higher capacity than the lowest storage capacity becomes available, replacing the replacement physical disk with the higher capacity replacement physical disk.

3 more elements

An information handling system comprising:

a disk group comprising an array of physical disks, the physical disks comprising a predictive failure indicated physical disk and a lowest capacity physical disk;
and
a disk controller coupled to the disk group, the disk controller configured to detect a predictive failure indication for the predictive failure indicated physical disk of the disk group, to determine an amount of used storage capacity of the lowest capacity physical disk of the disk group, to compare a replacement physical disk storage capacity of a replacement physical disk to the used storage capacity, and, when the replacement physical disk capacity is greater than or equal to the used storage capacity even if the replacement physical disk capacity is less than a lowest storage capacity of the lowest capacity physical disk of the disk group, to replace the predictive failure indicated physical disk with the replacement physical disk, wherein the disk controller is configured to compare the replacement physical disk storage capacity to the lowest storage capacity before comparing the replacement physical disk storage capacity of the replacement physical disk to the used storage capacity.

A nontransitory computer readable medium comprising instruction code executable by a processor to cause the processor to:

detect a predictive failure indication for a predictive failure indicated physical disk of a disk group in an information storage subsystem;
determine an amount of used storage capacity of a lowest capacity physical disk of the disk group;
compare a replacement physical disk storage capacity of a replacement physical disk to the used storage capacity;
when the replacement physical disk capacity is greater than or equal to the used storage capacity even if the replacement physical disk capacity is less than a lowest storage capacity of the lowest capacity physical disk of the disk group, to replace the predictive failure indicated physical disk with the replacement physical disk;
and
when a higher capacity replacement physical disk having a higher capacity than the lowest storage capacity becomes available, to replace the replacement physical disk with the higher capacity replacement physical disk.

3 more elements

Dependencies are inferred from the claim text.

Member replacement in an array of information storage devices

Life of this patent

Member replacement in an array of information storage devices

Life of this patent

Abstract

Claims17