upgrading my EV805 to EV903 planning, need some guidance
hi everyone, I want to share my plan of upgrading the environment and wanted some feedback as to how I can approach this task.
scenario - upgrade ev805 to ev903.
current ev805 DELL SERVER ( w2003 x86 standard sp2, 4 gig ram, P4 cpu, 2 disk arrays, A) Dell Disk Array B) HP Disk Array, they are connected through a DELL PERC 6e card.)
new HP server - future EV903 ( w2008 R2 x64, 16gb ram, quad cpu, hp raid card 2 external slots)
EV sql server dell - win 2003 x86 std sp2, 4gb ram - the server is upgradable to win2008 x64 and can take up to 32 gb of ram, which I will plan to do POST EV903 migration.
Space is really tight on my dell array and we got the HP array a few months before we got the HP server for the migration.
The way I think about this is that I have several options, but I think I will only be left with plan b, as I dig deeper into this mess.
Plan A:1) upgrade the current EV805 Dell server to EV903 2) install EV903 on a brand new HP server 3) disconnect the HP disk array from the old dell server and connect it to the new hp server ( I dont think this will work because the array created by the dell raid card will not agree with the HP array card, correct me if I am wrong about this please.) which leads me to plan b below.
Plan B:1) temporarily move what I have on the HP array off to the dell array and maybe the SAN if space permits ( here the issue is really about space for closed and the open store, I need to figure out where I can fit it all). 2) disconnect the HP array from the DELL server EV805. 3) connect it to the HP server, reconfigure format, etc 4) Upgrade Dell EV805 to EV903 5) Install EV903 on the HP server 6) Migrate stores back into the HP Array which is now on the HP array. 7) split the work load between 2 ev servers
Thanks for reading, I know its a lot and I appreciate any guidance in the matter!
I am really sure, that Dell RAID will not be understood by the HP RAID Controller.
Your Plan B is the best idea, but don't expect, that your installation will work. You have to do a Desaster Recovery to the new server and before you can do this, you have to make sure, that the whole environment, including drive letters etc. is identical to the old one. Depending the size of your RAID, this will cost a lot of time.
You can shorten the offline-times if you know the right procedures and by hacking into the databases.
However, I never would do either way without a Symantec or Partner Consultant.
Richard