[PATCH 1/2] dm-unstripe: unstripe of IO across RAID 0

2017-12-04 Thread Scott Bauer
This device mapper module remaps and unstripes IO so it lands solely on a single drive in a RAID 0. In a 4 drive RAID 0 the mapper exposes 1/4th of the LBA range as a virtual drive. Each IO to that virtual drive will land on only one of the 4 drives, selected by the user. As an example: Intel

[PATCH 1/2] dm-unstripe: unstripe of IO across RAID 0

2017-12-04 Thread Scott Bauer
This device mapper module remaps and unstripes IO so it lands solely on a single drive in a RAID 0. In a 4 drive RAID 0 the mapper exposes 1/4th of the LBA range as a virtual drive. Each IO to that virtual drive will land on only one of the 4 drives, selected by the user. As an example: Intel