Configuring reo devices as disk or tape devices, Using devices as disk devices, Creating tape devices – Overland Storage REO 9000 User Manual
Page 73: Configuring reo devices as disk or tape, Devices, Configuring reo, Devices as disk or tape devices

Configuring REO Devices as Disk or Tape Devices
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CHAPTER
7
Configuring REO Devices as 
Disk or Tape Devices
You can configure each REO Device to function either as a disk device 
(the default) or as a virtual LTO-2 tape device; that is, you can use each 
device in its native disk format, virtual-tape format, or any combination 
of the two.
Note:
To use the ShareDevice feature (available only on Windows) with
a device, the device must be designated as a disk device. For more 
information, see 
Sharing Access to a REO 9000 Between Multiple
As explained previously, the number of devices that you have depends on 
the volume configuration that you use. For example, if you use logical 
volumes with RAID 5, you can create up to 64 disk LUNs, 64 virtual 
LTO-2 tape devices, or any combination of LUNs and virtual LTO-2 
devices up to 64 in total.
Using Devices as Disk Devices
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If you want each REO Device to function as a disk device (the default), 
proceed to the steps outlined in 
Associating Targets (Devices) and
Creating Tape Devices
If you intend to create devices of type Tape or Dynamic Tape, note the 
following:
As with standard tape devices, a specific driver (on a Windows system) 
or changes to a system configuration (on a UNIX system) might be 
required to operate with your selected backup software. For more 
information, check the Overland Storage Web site 
(www.overlandstorage.com) for Application Notes related to your 
specific backup software.
If you are using logical volumes, you can create dynamic tape devices, 
which expand and contract to accommodate the size of a specific 
backup job.
When you change the configuration of a device, all data currently 
residing on the device is deleted.
