Systems and methods for RAID storage configuration using hetereogenous physical disk (PD) set up

摘要

Systems and methods are provided that may be used to automatically create RAID configuration with heterogeneous Physical Disk (PD) set up using Virtual Disk (VD) RAID Level and size, for example, to allow replication of a given RAID configuration across multiple different RAID platform systems regardless of the underlying storage disk sizes and/or storage disk types.

主权项

1. An information handling system, comprising:
at least one processing device configured to control the transfer of data to and from a redundant array of independent disks (RAID) storage memory that includes an array of multiple individual physical drives (PDs) to which data is written; at least one processing device configured to create a requested RAID configuration of multiple virtual disks (VDs) on the RAID storage system by individually performing the following steps for each given VD of the requested RAID configuration until the steps have been individually performed for all VDs of the requested RAID configuration:
identifying at least one first group of multiple free PDs of the RAID storage memory that are not assigned to an existing VD,sorting individual PD's from the identified first group of free PDs by ascending storage size,determining if the number of free PDs in the identified first group of free PDs equals or exceeds the minimum number of PDs required for a RAID level of the current given VD,determining if the storage size available on the free PDs in the first identified group of free PDs meets or exceeds a storage size requirement specified for the current given VD, andassigning the minimum number of free PDs required for the RAID level of the current given VD from a subgroup of the smallest free PDs selected from the at least one first group of multiple free PDs of the RAID storage memory if the number of PDs in the identified first group of free PDs equals or exceeds the minimum number of PDs required for a RAID level of the current given VD and if the storage size available on the PDs in the identified first group of free PDs meets or exceeds a storage size requirement specified for the current given VD.