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06-19-2017 09:41 AM
06-19-2017 09:41 AM
P2000G3 - Upgrade to MSA2042
Hi,
I'm looking for the correct procedure to move from a P2000 G3 to a MSA2042. My P2000 has exsiting D2700 shelfs, whcih I want to add to the new MSA2042. The P2000 has SATA disks in the unit head, the MSA2042 obviosuly has SAS.
I do not want to remove the controller heads from the P2000,, which the upgrade guides I've read refer to.
(https://www.hpe.com/h20195/v2/GetPDF.aspx/4AA4-6830ENW.pdf)
I want to leave the P2000 in place and act as a seperate SAN for the business.
The SAN is presented to Hyper-V hosts. All data on the D2700;s must remain in place and continue to be available to the hosts once connected to the new MSA2042.
Any advice greatly appreciated.
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06-21-2017 10:06 AM
06-21-2017 10:06 AM
Re: P2000G3 - Upgrade to MSA2042
Hello,
After having a known good backup of all data;
I would suggest a careful re-read of the guide you linked to below. I believe your request is covered as page 20 makes mention of replacing the whole controller shelf or the individual controllers. Your main issue is that you will not be able to move over the SATA drives in your controller head. If you have spare space on your expansion shelf volumes then you could consider first using OS based tools to relocate the files contained on the controller head disks to other volumes housed on the D2700's. Then, when you complete the "upgrade", everything will be there but just on the D2700 shelves. Your last step would probably to configure to configure the new disks in the MSA2042 base shelf as a new volume and move data back to it using the same OS based process.
If you bought an MSA 2042 then I'm assuming you'd like to take advantage of thin provisioning, virtualization, caching, or tiering. None of these things will be available to you if you simply move your existing linear volumes over from the P2000. If you want these features, you'll have to map out a careful stategy for post-upgrade where you carefully evacuate each virtual disk, destroy it, recreate it in a virtual pool, and move data back.
So, depending on your ultimate goal and desires, this may be a lot more work then you are imagining. However, this is sometimes the case when you're trying to both preserve data and migrate in a cost effective manner. If cost were no object, I'd say to get the MSA 2042 configured with all new shelves and disks (to meet your desired capacity/performance points), set it up as an entirely new SAN, and use OS based tools to migrate volumes. At the end of the day you are left with a well configured second test/dev/DR SAN with the P2000.
Best wishes.
I work for HPE. The comments in this post are my own and do not represent an official reply from the company. No warranty or guarantees of any kind are expressed in my reply.