Choosing and Configuring Storage Devices

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Choosing and Configuring Storage Devices

Table 4 shows the types of storage devices that ISM supports.

Table 4. Types of Storage Devices
Device Type	Media Type
Half-inch magnetic tape drives	himt
Quarter-inch cartridge tape drives	qic
Four-millimeter (DAT) tape drives	4mm
Eight-millimeter tape drives	8mm
Eight-millimeter five-gigabyte tape drives	8mm 5GB
3480 tape drives	3480
3570 tape drives	3570
4890 tape drives	4890
9490 Timberline tape drives	9490
Digital linear tape drives	dlt
Filesystem	File
Optical disk drives	Optical
VHS tape drives	VHS

Important:

ISM does not support autochangers or high-speed devices. Autochangers are storage devices such as jukeboxes, carousels, libraries, near-line storage, datawheels, silos, and autoloaders.

Keep the following issues in mind when you configure your storage devices:

ISM supports up to four storage devices.
It is recommended that you reserve a storage device for your logical-log backups.
You cannot use automatic rewind tape devices.

The combination of tape drives, optical disk drives, and filesystems that you use depends on your environment needs. When you use a filesystem (file-type) as a storage device, some limitations are imposed on your configuration. For more information, see Using Filesystems as Storage Devices.