@article{Le2019, 
author = {Quoc Le and Ahmed Amer and JoAnne Holliday},
title = {RAID 4SMR: RAID Array with Shingled Magnetic Recording Disk for Mass Storage Systems},
year = {2019},
journal = {Journal of Computer Science and Technology},
volume = {34},
number = {4},
pages = {854-868},
keywords = {disk array, redundant array of independent disks (RAID), shingled magnetic recording (SMR), shingled write},
url = {https://www.sciopen.com/article/10.1007/s11390-019-1946-4},
doi = {10.1007/s11390-019-1946-4},
abstract = {One way to increase storage density is using a shingled magnetic recording (SMR) disk. We propose a novel use of SMR disks with RAID (redundant array of independent disks) arrays, specifically building upon and compared with a basic RAID 4 arrangement. The proposed scheme (called RAID 4SMR) has the potential to improve the performance of a traditional RAID 4 array with SMR disks. Our evaluation shows that compared with the standard RAID 4, when using update in-place in RAID arrays, RAID 4SMR with garbage collection not just can allow the adoption of SMR disks with a reduced performance penalty, but offers a performance improvement of up to 56%.}
}