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тАО03-11-2010 05:14 AM
тАО03-11-2010 05:14 AM
Mezzanine HBA reliability
I want to hear your opinion about using single mezzanine HBA with dual ports to provide "redundant" fabric access.
We are running with the same config as above and so far we have not had any mezzanine failures taking down both paths to SAN.
Please share your experiences / alternatives you can think of.
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тАО03-11-2010 05:56 AM
тАО03-11-2010 05:56 AM
Re: Mezzanine HBA reliability
I have seen some customers that have initially gone for 2 HBAs in their first enclosures. But those that have also have said that they probably would not do so in the future due to HBA reliability.
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тАО03-11-2010 06:13 AM
тАО03-11-2010 06:13 AM
Re: Mezzanine HBA reliability
Hope this helps!
Regards
Torsten.
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тАО03-11-2010 06:18 AM
тАО03-11-2010 06:18 AM
Re: Mezzanine HBA reliability
Like said, so far I have not had a failed mezzanine HBA nor a slot.
For Ethernet, we use one on-board and one mezzanine NIC to bond providing failover/round-robin.
Thanks.
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тАО03-11-2010 08:52 AM
тАО03-11-2010 08:52 AM
Re: Mezzanine HBA reliability
We have not yet seen any failures of these devices. Maybe 150 in use over the last two years.
However considering the relatively low cost of the cards, we decided to implement them differently. We use two mezzanine HBAs in our half-height blades and populate our enclosures with a VC-FC module in bay 3 and another in bay 6, using only one of the ports on each card.
This allows us to keep redundancy at the fabric, switch, cable, VC-FC module, AND the HBA level. :)
good luck with your decision