1 / 18

RAID

RAID. REDUNDANT ARRAY OF INEXPENSIVE DISKS. Why RAID?. APPLICABILITY. Large Data Transfers Numerous Small Transfers. RELIABILITY. - MTTF. PERFORMANCE. Data Transfer Rate I/O performance. STORAGE CAPACITY. Parity. 1. 1. | 1. 1 0 0 1 0 1. 0. 0. 1. RAID levels.

harry
Télécharger la présentation

RAID

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. RAID REDUNDANT ARRAY OF INEXPENSIVE DISKS

  2. Why RAID?

  3. APPLICABILITY • Large Data Transfers • Numerous Small Transfers

  4. RELIABILITY - MTTF PERFORMANCE • Data Transfer Rate • I/O performance STORAGE CAPACITY

  5. Parity 1 1 | 1 1 0 0 1 0 1 0 0 1

  6. RAID levels

  7. RAID 0: NON-REDUNDANT STRIPING Disk 0 Disk 1 Disk 2 Disk 3

  8. RAID 1: MIRRORED DISKS Disk 1 Disk 0 Disk 2 Disk 3

  9. RAID 3: SINGLE CHECK DISK Disk 5 Disk 0 Disk 1 Disk 2 Disk 3 PARITY OR CHECK DISK DATA DISKS

  10. RAID 4: INDEPENDENT DISKS Disk 5 Disk 0 Disk 1 Disk 2 Disk 3 PARITY OR CHECK DISK DATA DISKS

  11. RAID 5: NO SINGLE CHECK DISK Disk 0 Disk 1 Disk 2 Disk 3 Disk 5

  12. Summary

  13. Conclusions • RAID provides an effective solution for disk drive performance and reliability issues • Can be adjusted to meet specific requirements • Can be hardware or software based

More Related