BESRO 8.5.5: Backup from larger LUN and restore to smaller LUN

[Symanticus]

Hi All,

I'd like to perform migration of my current physical Exchange Server 2007 from RAID-5 LUN into a server with fewer Hard Disk drive in RAID-1

is there anything that i should be paying attention into ?

Source: 5x 400 GB with RAID 5

Target: 2x 400 GB with RAID 1

I've calculated that the total content of the partitions on source server is just 198 GB, therefore I am dare to move the Exchange Server into the smaller disk drive.

Previously, Ive done restoration to a bigger LUN size and it doesn't go as I expected with the unknown partition cannot be used. So is there anything that i should do before during and after this process ?

Thanks.

[Symanticus · Accepted solution]

I've done upgrade and the result is not that good :( with the disk layout got unusable partition.