E-Series, SANtricity and Related Plug-ins Discussions

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

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

2 REPLIES

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

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.

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

Thank you. 

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