RAID(Redundant Array of Independent Disks)

created : 2020-08-23T11:50:40+00:00
modified : 2020-08-24T11:06:49+00:00

storage raid

종류

  • RAID 0 : stripping
  • RAID 1 : mirroring
  • RAID 5 : stripping + mirroring + parity (at least 3 disks)
  • RAID 6 : stripping + mirroring + parity (at least 4 disks)
  • RAID 0 + 1 : mirroring after stripping
  • RAID 10 (1 + 0) : stripping after mirroring

Benchmark

  • SSD 에서의 밴치마크 : https://www.phoronix.com/scan.php?page=article&item=linux55-ssd-raid&num=1

  • RAID 5 기준으로 작성 다른 RAID 같은 경우 위 링크 참조 | | Btrfs | EXT4 | F2FS | XFS | |———————————————————————————–|——————-|—————–|——–|——–| | Application Start-up Time v3.4.0 (Only Sequential Reads - Xterm) | 8.69 | 0.20 | 5.51 | 8.76 | | Application Start-up Time v3.4.0 (Sequential Reads + Writes - Xterm) | 3.68 | 2.64 | 1.62 | 1.85 | | Application Start-up Time v3.4.0 (Only Sequential Reads - GNOME Terminal) | 22.70 | 30.39 | 15.26 | 39.19 | | Application Start-up Time v3.4.0 (Only Sequential Reads - LibreOffice Writer) | 14.34 | 22.94 | 10.28 | 28.06 | | Application Start-up Time v3.4.0 (Sequential Reads + Writes - GNOME Terminal) | 10.68 | 7.19 | 4.77 | 8.63 | | Application Start-up Time v3.4.0 (Sequential Reads + Writes - LivreOffice Writer) | 6.93 | 6.06 | 2.91 | 6.33 | | SQLite v3.30.1 (Threads / Copies : 1) | 83.30 | 40.36 | 46.17 | 46.38 | | SQLite v3.30.1 (Threads / Copies : 8) | 227.68 | 308.02 | 412.05 | 221.80 | | Flexible IO Tester v3.16 (Random Write) | 115K | 93K | 85K | 122K |

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