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07-12-2011 08:26 AM
07-12-2011 08:26 AM
HP P2000 G3 Directed Connected
On the HP P2000 G3 dual controlled with 8 Gb FC Ports, could 4 hosts be directed connected on each port of the storage?
Thanks.
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07-12-2011 09:57 AM
07-12-2011 09:57 AM
Re: HP P2000 G3 Directed Connected
Hope this helps!
Regards
Torsten.
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07-12-2011 10:09 AM
07-12-2011 10:09 AM
Re: HP P2000 G3 Directed Connected
Yes that's what I think so, but I need to be 100% sure before make this investment.
I know that redudant switchs it's a robust and ideal solution, however for costs reasons we need to get a entry-level storage solution with directed attached option for later be able to foward to a switched solution.
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07-12-2011 10:18 AM
07-12-2011 10:18 AM
Re: HP P2000 G3 Directed Connected
You have so many SPOFs then:
The servers HBA and each of the P2k controllers.
If a single item fails you cannot work.
You may consider to buy smaller FC switches or even use the iSCSI option of the array.
Hope this helps!
Regards
Torsten.
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07-12-2011 10:40 AM
07-12-2011 10:40 AM
Re: HP P2000 G3 Directed Connected
I know that running this way there will be a lot of SPOFs. However, this will be a initial implementation for later add switches and get redundancy for the solution.
The storage with both FC/iSCSI option costs 35% higher. My intention is get a inital storage solution that later will be possible, when there will be more budget, upgrade for a robust solution.
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07-12-2011 01:02 PM
07-12-2011 01:02 PM
Re: HP P2000 G3 Directed Connected
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07-12-2011 09:49 PM
07-12-2011 09:49 PM
Re: HP P2000 G3 Directed Connected
Could you define a little better? How would you connect 4 ports on each port of the storage? This would IMO require a SAN-switch. Or do you mean one host to one port on the storage? (there are two ports in each controller).
The last idea will work.
The storage ports are even in Direct Connect mode by default.
I don't remember if I've seen four DC, but I have seen a mix of DC and SAN-switch to the same P2000 G3.
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07-12-2011 10:10 PM
07-12-2011 10:10 PM
Re: HP P2000 G3 Directed Connected
This will work, but if a storage controller fails 2 servers will be disconnected.
Even a single 8 port switch would be a better solution for the beginning.
An alternative would be a small EVA4400 with embedded switches, but likely more expensive.
Hope this helps!
Regards
Torsten.
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07-12-2011 10:18 PM
07-12-2011 10:18 PM
Re: HP P2000 G3 Directed Connected
For example the 4/8 switch A7984A (looked at one page on the Internet and it was priced at 755 American $).
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07-13-2011 06:19 AM
07-13-2011 06:19 AM
Re: HP P2000 G3 Directed Connected
Thanks guys for the information, that's what I needed to know for now.
But Johan, Why did you say that I'd probably not get speeds from one server going above 4Gbps?