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7 Posts
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25653
December 1st, 2013 23:00
Does Compellent SC 8000 single controller apply to Dual Fabric ?
We are having plan to add Compellent SC 8000 single controller + SC220 enclosure to current SAN. Currently, "Front End" SAN system includes 2 Brocade 300 FC switch connecting to Dell EMC AX4-5 Storage and 5 PowerEgde servers.
My question about Front End of SC8000 connectivity to current SAN: Only 1 FC I/O card with dual FC ports for switch fail-over is enough in this case ? Or we need order two FC I/O card with dual FC ports ?
In this plan we limited budget, so can not order dual controller now. The 2nd controller requirement in next time.
Thank you for answer from expert
vietdung
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DELL-Kenny K
685 Posts
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December 12th, 2013 16:00
Yes having dual cards is better than having a single card. By adding the second card you are making it so there is not an a single point of failure on the HBA's.
mtanen
118 Posts
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December 2nd, 2013 11:00
So you want to add a single controller Compellent into an existing Brocade 300 bases FC SAN.
Depending on the density of the FC Switch (and your awareness of that models limitation in performance when fully populated) that should be no problem.
From a Compellent configuration point of view - single controller implementations carry certain risks. You can not do firmware upgrades without outages; hardware failures can cause an outage. If you are looking for 24x7 - then its not the way to go.
Given that - you would want a single 4 port 8Gb FC card per controller. That can handle both fabrics and will be setup of so you can have maximum performance and redundancy when you add another controller later. SC8000 w/ 64GB RAM preferred.
DELL-Kenny K
685 Posts
1
December 2nd, 2013 14:00
Michael is correct in his statements that it should be possible to configure it that way just not recommended due to having the Single Point of Failure. The more redundancy that you have the better of course. If you have any questions with the process to set everything up please reach out to the Compellent Copilot team at 866-397-8673. Or you can let me know if you have any other questions as well.
DCSE_Student
7 Posts
0
December 3rd, 2013 18:00
Thank you for your advise, I knew the risk while add single controller to Dual Fabric now, but the budget is limit -:).
I'm considering about add 2 of dual FC port card to controller instead 1 of quad port card as your recommend ? Is it better?