Exchange - Create New Databases And Delete the Old Ones

[Max Coder]

Hi,


I’ve set up my environment in a way where Exchange 1 and 2 are at Prod Site and server 3 and 4 are at DR site;

I have 8 databases and a 2-node DAG. We have DB01....DB08 OLD database. We have total 18 TB DB.


My plan is:  to create new DB’s, migrate mailboxes and delete the old DB’s

we’ll be creating our sixteen Databases, and evenly distributing them across our servers.


8 Log database per volume

About 1.125 TB per database

Allocation unit size of 64KB for both database and log volumes
2 Mailbox database per volume

it would be 1 Active Copy  , 2 Passive copy like below.

PROD : it will settings up with active preferences

MDB01, MDB03, MDB05, MDB07, MDB09, MDB11 on Server01

MDB02, MDB04, MDB06, MDB08, MDB10, MDB12 on Server02

DR: passive copy only

MDB01, MDB03, MDB05, MDB07, MDB09, MDB11 on Server03

MDB02, MDB04, MDB06, MDB08, MDB10, MDB12 on Server04


DISK 3 I = EXDBV1 (multiple DB files in seperate folders)

DISK 4 J = EXDBV2 (multiple DB files in seperate folders)

DISK 5 K = EXLOGV1 (files of more than 1 DBlogs in seperate folders)

DISK 6 L = EXDBV3 (multiple DB files in seperate folders)

DISK 7 M = EXDBV4 (multiple DB files in seperate folders)

DISK 8 N = EXDBV5 (multiple DB files in seperate folders)

DISK 9 O = EXDBV6 (multiple DB files in seperate folders)

DISK 10 P = EXLOGV2 (files of more than 1 DBlogs in seperate folders)

DISK 11 R = EXDBV7 (multiple DB files in seperate folders)

DISK 12 S = EXDBV8 (multiple DB files in seperate folders)


What's the best procedure to make this happen?

[Michael B. Smith]

Your descriptions conflict.

 

For example, you say you have a 2-node DAG and then you list 4 servers. Doesn’t compute.

 

Regardless, this tool will tell you how to lay out your data best:

 

Download Exchange Server 2019 Sizing Calculator from Official Microsoft Download Center

 

Getting from where you are to where this tool tells you to go is an exercise for the reader. 😊

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[maxcoder1]

thanks ,the Activation Preference (AP), which mounts the copy according to server: 

 

https://imgur.com/a/NIOurO0

  we have about 17.3 TB DB. 

 

   we’ll be creating our sixteen Databases, and evenly distributing them across our servers.

8 physical drive , 2 database per volume (1 active , 1 passive)

Log database and mailbox database on different volume

Log volume : K and P drive letter

Database volume : I , J , L ,M , N ,O ,R ,S drive

e.g for MDB01 3 copies - 1 active - 2 passive

New-MailboxDatabase –Name MDB01 –Server EXCHSRV1 –LogFolderPath K:\ExDBs\MDB01\MDB01.log –EdbFilePath I:\ExDBs\MDB01\MDB01.db\MDB01.edb

Add-MailboxDatabaseCopy -Identity MDB01 -MailboxServer EXCHSRV2 -ActivationPreference 2

Add-MailboxDatabaseCopy -Identity MDB01 -MailboxServer EXCHDRSRV1 -ActivationPreference 3

and so on.

Is my exchange sizing plan correct?