Exchange 2007 GRT-enabled backups to disk or GRT restores from tape fail due to disk geometry incompatibility
|Article:TECH209092|||||Created: 2013-07-29|||||Updated: 2013-11-20|||||Article URL http://www.symantec.com/docs/TECH209092|
Utilizing Advanced Format Disks having a 4KB physical sector size can result in a disk geometry error during Exchange 2007 database recovery. Advanced Format disks report themselves as having a 4KB physical sector size, but emulate a logical addressing interface of 512 bytes for backward compatibility. These disks are also known as “512-byte emulation disks” or “512e” for short.
The volume that is used for the staging location must be a writable NTFS volume that is local to the Backup Exec server. Also, the volume must not be shared through Distributed File System.
- The Exchange 2007 log volume resides on an Advanced Format Disk with HF 982018 installed and the Backup Exec server recovery volume resides on a standard 512-byte sector drive.
- The Backup Exec server recovery volume resides on an Advanced Format Disk with HF 982018 installed and the Exchange 2007 log volume resides on a standard 512-byte sector drive.
- Both the Backup Exec server recovery and Exchange 2007 log volumes reside on Advanced Format Disks, but Windows Server 2008 HF 982018 is only installed on one server or the other.
Align the disk geometry of the Exchange 2007 log volume with the recovery/staging volume on the Backup Exec server. This can be accomplished by:
- Ensuring both volumes are Advanced Format Disks and either are, or are not reporting the 4KB physical sector size. The following Windows Server 2008 command can be used to determine this:
- Use standard 512-byte disk drives on both the Exchange 2007 log volume and recovery/staging volume on the Backup Exec server.
Article URL http://www.symantec.com/docs/TECH209092