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Why Choose Native Fibre Channel Backup?
July 2001
Easy scalability
When additional backup resources are required, an administrator can
hot-plug devices into the SAN without reconfiguring servers. Unlike the
limited number of devices supported on a SCSI bus, the SAN can support
enough backup capacity to meet the needs of the entire network. The
most common Fibre Channel networks implemented today can support
over a hundred devices. The Fibre Channel standard defines other
configurations that can support thousands to millions of devices.
Improved fault tolerance
Backup operations are more fault tolerant on a SAN because Fibre
Channel provides multiple pathways for data. If a data path fails, data
can be routed through a different data path. Likewise, if a tape drive fails,
data can be backed up to another tape drive on the SAN. For additional
fault tolerance, data can be copied to multiple devices on the SAN,
including devices at remote sites. Depending on the type of cabling used,
data can be transferred up to 10 kilometers (6.2 miles) between Fibre
Channel devices, allowing direct remote data duplication.
Simplified backup management
The management of backups is much easier because backup devices
can be centrally located and monitored from a single console. Because
backup resources are used more efficiently, there are fewer devices to
monitor and maintain. Because resources are pooled, they can be easily
allocated as needed through software.
Fibre Channel backup from Exabyte
Exabyte has always understood the importance of providing
cost-effective, reliable backup solutions. With the emergence of SANs,
these solutions must also integrate seamlessly into the Fibre Channel
network.
With SAN applications in mind, Exabyte has introduced three native Fibre
Channel libraries. The 430M, X80, and X200 MammothTape libraries,
shown in Figure 1, feature Exabytes award-winning native Fibre Channel
M2 tape drives. Each library and its tape drives connect directly to the
Fibre Channel SAN without the need for intervening routers.
The M2 tape drive is the first midrange tape drive with native Fibre
Channel connectivity, as well as the first in its class to provide built-in
serverless backup support. Serverless backup, described on page 9,
allows backups to proceed directly from disk to tape without server
involvement. True native Fibre Channel connectivity and serverless
backup support make the 430M, X80, and X200 ideal for backing up the
SAN.
True native Fibre Channel
connectivity and serverless
backup support make the
Exabyte 430M, X80, and
X200 ideal for backing up
the SAN.
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