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Old 09-12-2007, 12:02 PM   #1 (permalink)
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Default Advice: "Knife-edge" versus 2nd BES & migrate

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Any advantage to putting up a second BES with a temp SRP, migrating existing users, shutting down the second, and switching the SRP?

My plan is to install on a new server, backup db, switch name/IP, and restore, but I'm curious if the migration approach minimizes the outage.

Thanks in advance.
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Old 09-12-2007, 12:31 PM   #2 (permalink)
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This depends on what you need to accomplish and how mission critical your BB's are. I have done two knife edge cutovers and one upgrade. They were both quick with less downtime for the the knife edge, but I would only do knife edge if you need to upgrade hardware or you really can't have a half hour of downtime. If you don't, pick a time when BB's are least used and do the upgrade (always backup first!!)
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Old 09-12-2007, 12:36 PM   #3 (permalink)
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heheheh ... BBAdmin care to chime in?

Doing a migration has some benefits just as you listed ... but "outage-wise" they're effectively the same as the only true outage on a migration is when you replace the SRP and on a knife-edge when you stop / start services; effectively the same thing.

I prefer the knife-edge; just feels cleaner, but each certainly has its merit.
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Old 09-12-2007, 01:35 PM   #4 (permalink)
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roger that.

the thought of a day-time build got me a little giddy...

thanks.
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Old 09-12-2007, 05:06 PM   #5 (permalink)
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Fortunately, I have two BES servers per org and have had the luxury of good HW so I have just upgraded.
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Old 09-13-2007, 08:57 AM   #6 (permalink)
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Quote:
Originally Posted by AlanM View Post
Fortunately, I have two BES servers per org and have had the luxury of good HW so I have just upgraded.
You have a surplus of hardware, dont ya? Care to share?

I'm eventually gonna do the spork-edge cut when I get my DB migrated from MSDE to SQL. Someday. Someday.
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Old 09-13-2007, 09:11 AM   #7 (permalink)
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Quote:
Originally Posted by DarthBBerry View Post
You have a surplus of hardware, dont ya? Care to share?

I'm eventually gonna do the spork-edge cut when I get my DB migrated from MSDE to SQL. Someday. Someday.
Guess what not only am I getting more HW, but I've also begun to get software. Actually talked the powers that be into T2 support as well. Oh the stories to tell about all this at next WES.
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Old 09-14-2007, 04:58 AM   #8 (permalink)
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Quote:
heheheh ... BBAdmin care to chime in?
Do I even need to?????

hdawg, care to chime in:

BES Migration

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