What is a VPLEX RAID-0 device?

A VPLEX RAID-0 device is a configuration where data is striped across multiple storage volumes to improve performance. Here’s a detailed explanation:

RAID-0 Definition: RAID-0 is a disk array configuration that involves striping data across multiple disks without redundancy.This increases performance because I/O operations can be performed concurrently on all disks1.

Device Stripes Data: In the context of VPLEX, a device refers to a logical unit that is created from physical storage volumes.When a VPLEX device is configured as RAID-0, it stripes data across the underlying storage volumes1.

Top-Level Device: The term ‘top-level device’ refers to the logical device that is presented to hosts and applications.In VPLEX, this top-level device is the virtual volume that is created from one or more RAID-configured devices1.

Striping Beneath Top-Level Device: The striping occurs beneath the top-level device, meaning that it is handled within the VPLEX system and is transparent to the host.The host sees a single logical unit, while the VPLEX system manages the distribution of data across the physical volumes1.

Performance Considerations: RAID-0 devices provide better performance since data is retrieved from several storage volumes at the same time. However, RAID-0 devices do not include a mirror to provide data redundancy.They are used for non-critical data that requires high speed and low cost of implementation1.

By configuring a VPLEX device as RAID-0, administrators can leverage the performance benefits of striping for applications that require high throughput and do not need the redundancy provided by other RAID levels.