topic Re: Adding SFP Transceiver to Online EVA in HPE EVA Storage

Adding SFP Transceiver to Online EVA

Dweller — Wed, 29 Jun 2011 01:20:54 GMT

Hi,

Does anyone know if can add an SFP Transceiver (AJ716A) to an Online EVA4400 without powering it down? I want to add an additional server to the EVA SAN using FC.

I have a server currently connected via FC to an MSA1000, but need to shift the FC connections to an EVA4400 SAN. I can power off the physical server but an outage on the MSA1000 and EVA4400 is harder to schedule.

Do I have to power down both SANs and attached servers, Add new SFPs, re-configure the SAN Fabric, Switch the cables, and power them back up?

Or can I just Power off the server, Add new SFPs to Online EVA, Re-configure the SAN Fabric, Disconnect from the MSA, Connect to the EVA, power on Server and Reconfigure SAN Fabric?

I suppose the first is safer, but I don't want to have to power off the SANs especially the MSA as it is has an odd configuration.

Thanks

Re: Adding SFP Transceiver to Online EVA

Johan Guldmyr — Wed, 29 Jun 2011 07:48:37 GMT

Hello!

You do not have to turn off the EVA to add an SFP. Your second method looks good. But if you could describe your SAN a little better that would be good - do you have direct connected server or SAN switches? If you have SAN-switches - is it in dual fabric?

Don't forget to check and configure the port on the EVA - if you have a server direct-connected you need to set the port as such. If you have a switch you set the EVA host port (FPx) in fabric mode.

I find your post a little contradictory. If you want to add a server to an EVA SAN fabric - why do you need to add an SFP to the EVA? Can't the server access the EVA through one of the existing SFPs?

Re: Adding SFP Transceiver to Online EVA

Bernd_Mueller_MCL — Wed, 29 Jun 2011 13:34:11 GMT

Hi Johan,

i think you have an EVA4400 with integrated SAN Switches. If so, you can savely add additional SFPs to the EVA(switches). If not, please explain your Configuration more exactly.

Bernd

Re: Adding SFP Transceiver to Online EVA

Dweller — Fri, 01 Jul 2011 03:21:33 GMT

Thanks Johan and Bernd_Mueller_MCL,

The servers are all directly attached to the EVA and there are no spare SFPs left.

Needed to add more to expand the capability and add another server and a FC tape library, and this EVA4400 has the integrated SAN switches (16 ports / controller), but by default when you purchase it you only get 8 x 8GB SFPs, four for each controller. So i'm short and need to add more in hence the post. The MSA only has the older 4GB SFPs and is out of support.

There is no additional licensing required as 8ports on each controller are licensed to use, but to use the other extra 8, an additional LTU is required.

Cheers.