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| Port settings for direct attach ? https://3parug.com/viewtopic.php?f=18&t=2688 |
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| Author: | markinnz [ Wed Oct 18, 2017 8:11 pm ] |
| Post subject: | Port settings for direct attach ? |
Hi there, Just trying to find out what port settings I should configure on the 3PAR for directly attached a HPE blade centre with FlexFabric modules. Should the Host ports be Loop or point to point ? Also the 3PAR is OK with multiple "virtual" WWPNs logging in via a host port ? (ala NPIV) Thanks! Mark |
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| Author: | MammaGutt [ Thu Oct 19, 2017 2:48 am ] |
| Post subject: | Re: Port settings for direct attach ? |
FC Cookbook for Virtual connect ( http://h20628.www2.hpe.com/km-ext/kmcsd ... 940-16.pdf ) has a detailed description on how to do it (called FlatSAN). If my memory serves me right, you don't need to change from loop to point on 3PAR with 8k and 20k. |
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| Author: | ailean [ Mon Oct 23, 2017 9:13 am ] |
| Post subject: | Re: Port settings for direct attach ? |
NPIV I've seen mentioned as a not supported feature on 3PAR, at least in a SAN attached config, not seen it mentioned differently in direct. |
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| Author: | MammaGutt [ Mon Oct 23, 2017 2:10 pm ] |
| Post subject: | Re: Port settings for direct attach ? |
ailean wrote: NPIV I've seen mentioned as a not supported feature on 3PAR, at least in a SAN attached config, not seen it mentioned differently in direct. Without having anything to back me up, that sounds wierd. Persistent Port uses NPIV to "logically" failover a physical port on the 3PAR to the partner port. And when using FlexFabric with a SAN fabric, all it does is NPIV. Not sure what(if any) it does different in FlatSAN mode. It would also indicate that Hyper-V virtual FC adapters are not support with direct attached servers. |
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| Author: | ailean [ Tue Oct 24, 2017 3:54 am ] |
| Post subject: | Re: Port settings for direct attach ? |
It was NPIV at the host end I'd seen mentioned, PP certainly needs it at the array and SAN ends. This may only be in relation to VMware hosts, there is a mention in the current VMware guide but no talk of support or not support in any of the other host guides I've checked. 
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