Great question. It's about reliability, and not about HUR or GAD. We always recommend RAID6 for data reliability, and our 100% Data Availability Guarantee requires it. RAID5 (and RAID10) works, but isn't best practice.
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John McDevitt
Senior Director, Infrastructure Product Management
Hitachi Vantara
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Original Message:
Sent: 11-04-2022 06:15
From: Venkata Sai Sarath Sarma Vadlamannati Lakshmi
Subject: Wanted to know why only RAID-6(6D2P, 14D2P)) and not RAID-5 is applicable for GAD/HUR of the data protection solution?
I see that all tthe HUR/GAD solutions always have RAID-6 drives and not RAID-5 drives, as I am not from a hardware background curious to know why RAID-6 works over RAID-5
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Venkata Sai Sarath Sarma Vadlamannati Lakshmi
Software Development Engineer
Hitachi Vantara
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