EF & E-Series, SANtricity, and Related Plug-ins

What is the extra Q calculation and uses for whic raid level ?

UgurD
2,401 Views

What is the extra Q calculation and uses for whic raid level ?  Thanks in advance. 

1 ACCEPTED SOLUTION

MitchBlackburn
2,380 Views

The RAID level is RAID 6. RAID 6 uses two parity drives which allows the RAID group to survive two drive failures. With only one parity drive (P) we have RAID 5. When there are two parity drives (P +Q) we have RAID 6. Info on how RAID 6 works is widely available on the internet.

View solution in original post

2 REPLIES 2

MitchBlackburn
2,381 Views

The RAID level is RAID 6. RAID 6 uses two parity drives which allows the RAID group to survive two drive failures. With only one parity drive (P) we have RAID 5. When there are two parity drives (P +Q) we have RAID 6. Info on how RAID 6 works is widely available on the internet.

UgurD
2,377 Views

Thank you. 

Public