Storage - Add Mirror Device

At any time, you can add more storage capacity to your Mirror Group. Please note that all storage devices listed in your Mirror Group must be online and accessible for the mirroring process to occur. You also need to think about the mode you have the Mirror operating in - Is it in Interlocked mode or Ad-hoc mode? To find out which mode your Mirror is in, click on the Options button in the Mirror Group section of the Storage panel.

• Adding Storage to an Interlocked Mirror
  Typically, when you are running an Interlocked Mirror, you will need to add storage to your Mirror Group after you have added storage to your Backup Storage Group. When you are in this situation, each device in your backup storage group is "tied" to a corresponding device in your mirror group; in other words, each storage device is paired or interlocked with a companion mirror device. Backup for Workgroups ties the backup storage devices to your mirror devices based on the order in which they appear in the Storage panel. The first item listed in the backup storage group is tied to the first item in the mirror group, and so on. You can change how the devices are tied to each other by using the Priority Up and Priority Down buttons available on the Storage panel. 

• Adding Storage to an Ad-Hoc Mirror
  When you are running an Ad-Hoc mirror, you can add storage to the mirror group at any time. To ensure that you have enough mirror storage space, the sum total of the storage space in your mirror group needs to be equal or greater than the sum of the storage of all the devices in the backup storage group.

What Type of Storage Can Be Added to Your Mirror Group

You can use any disk storage device as long as it appears as a hard drive or network share point inside of Windows.  Examples of disk storage devices that you can use include: internal hard drives, external hard drives, USB drives, FireWire drives, NAS devices, SAN devices, RAID storage devices, and any other storage device that appears as a hard drive or network share inside Windows.  Remember that if you are using an Interlocked Mirror, and you have just added another storage device to your backup storage group, you need to add a corresponding device to your mirror group. 

PLEASE READ - Special Note About Network Shares and UNC Format Path Information - PLEASE READ

When you decide to add storage that resides at a network share, you MUST enter the name of the network share in UNC format. Note that if you enter a mapped network drive path by letter, Backup for Workgroups will inform you that it would like to change the information to the UNC equivalent for you. You cannot use a mapped network drive letter because the Backup Server runs as a service and Windows only makes the drive letters available to logged in users, not services.  The UNC format works just fine with Windows services. The UNC format consists of "\\DeviceName\Sharepoint\FolderName."

How to Add Storage to your Mirror Group

1. Go to the computer running the Backup Server software.

2. Run Backup for Workgroups.

3. Select the Storage panel.

4. In the bottom half of the Storage Panel which is called the Mirror Group, press the Add button.

5. At the Add Mirror Storage Device dialog, select the path to the additional storage location. If the storage location does not appear in the drop-down list, and it is a local drive, press the Advanced button to type in the path to the drive. If the storage location is a network share, press the Network Share button and enter the path to the network share and the access credentials necessary to access the share.

6. Press Verify to make sure Backup for Workgroups has full access rights to the new mirror device.