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How to determine if NetApp FAS2020 is reliable enough?
We are considering proposals to virtualize production servers. Dual ESX servers with Vmotion run virtual servers off NetApp FAS2020 (as SAN). I need some advice on how to determine if this NetApp FAS 2020 is reliable enough for my environment.
Summary of NetApp FAS 2020: redundant power supply, fan, RAID-DP disks, single controller. Unit reliability: 99.99%
Q#1. How reliable is NetApp product based on your experience or knowledge?
Q#2. Any standard regarding reliability?
Q#3. I am bit concerned about the risk of single controller. Is 99.99% good enough for small-medium environment?
Q#4. How to interpret such reliability number? Say if the controller fails, the production loss is $100K. With dual controller, the reliability is 99.999%, but the additional cost is $8k. What formula can I use to calculate the potential loss and savings? Can someone help me with this?
Thanks a lot.
Summary of NetApp FAS 2020: redundant power supply, fan, RAID-DP disks, single controller. Unit reliability: 99.99%
Q#1. How reliable is NetApp product based on your experience or knowledge?
Q#2. Any standard regarding reliability?
Q#3. I am bit concerned about the risk of single controller. Is 99.99% good enough for small-medium environment?
Q#4. How to interpret such reliability number? Say if the controller fails, the production loss is $100K. With dual controller, the reliability is 99.999%, but the additional cost is $8k. What formula can I use to calculate the potential loss and savings? Can someone help me with this?
Thanks a lot.
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Thanks for the points! Glad I could help...
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