Working With Devices; Managing Devices; Backup Concepts - HP BB118BV - StorageWorks Data Protector Express Package User's Manual & Technical Reference

9 Working With Devices

In this chapter

• Managing Devices

• Working With Tape Libraries
Managing Devices
In this chapter

• Backup Concepts

• Disk-to-Disk Backups
• Disk-to-Disk-to-Any Backups
• Creating a Virtual Library
• Moving Backups From a Virtual Library
• Devices view and Catalog view
• Managing Devices with the Devices view
In Data Protector Express you can manage backup devices and media to make the best use of available
resources. With Data Protector Express you can create a backup system that includes individual media
drives attached to a local PC desktop, tape libraries with multi-terabyte capacities accessible by way of a
company network, and virtual tape devices that emulate libraries and allow you to perform disk-to-disk
backups.
NOTE:
Performing disk-to-disk (D2D) backups is a standard feature in Data Protector Express. Enhanced support
for disk-to-disk-to-tape (D2D2T) backups and for disk-to-disk-to-any media (D2Any2Any) backups are
available based on the license that you purchase.
For more information, see
Backup Concepts
Typical backup operations copy files from a local hard disk or network to a physical backup device.
Physical backup devices are varied: they can be as simple as a writable DVD drive, a single- or
multi-cartridge tape device connected to a local machine by way of a SCSI cable, or as complex as a
robotic library with storage capacity for 200 or more tapes and accessible over a network. All optical
disks (CD-ROM, DVD, etc.) and tape cartridges have a limited capacity; that is, only a certain amount of
data can be copied to them. Common capacity limits for tape cartridges are 40 GB, 80 GB, and so
on. Compact disks and DVDs might store 700 MB or more of data.
NOTE:
Storage capacity varies widely among manufacturers. To determine the maximum capacity of the tape
cartridge, CD-ROM, DVD or other backup media that you are using, check with the manufacturer's
documentation.
Alternative backup operations copy files from a local hard disk to other disk drives, either locally or across
a network. Often referred to as disk-to-disk (D2D) backups, the destination for these jobs is actually a
folder or other location on a hard disk or network drive. D2D backups provide increased speed and
Disk-to-Disk-to-Any Backups.
User's Guide and Technical Reference
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