LAN-free backup


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Related to LAN-free backup: serverless backup

LAN-free backup

Performing backup without wasting bandwidth by transferring the data over the LAN or WAN. The simplest LAN-free architecture is a server or a NAS device with backup storage directly attached. Another approach is to use a SAN that connects the disks and backup storage via a Fibre Channel switch. The operation is managed by a backup server. See backup and NAS.


Not LAN Free
In small companies, it is common to back up data over the LAN.







Direct Attached LAN Free
If servers and NAS devices are connected to backup storage, the LAN is not impacted, but the servers and NAS devices must perform backup and serve users at the same time.







LAN Free Using a SAN
A SAN provides high-speed backup because Fibre Channel connections between storage and backup are very fast. Data are often staged so that users and backup are not competing with each other.







A Variation of LAN Free Using a SAN
This method uses a "data mover" to manage the backup and provide Fibre Channel to SCSI conversion. The backup server initiates, and the data mover takes over. The ATTO data mover (bottom) is available in board versions that vendors can embed into the backup storage itself. (Image courtesy of ATTO Technology, Inc., www.attotech.com)


A Variation of LAN Free Using a SAN
This method uses a "data mover" to manage the backup and provide Fibre Channel to SCSI conversion. The backup server initiates, and the data mover takes over. The ATTO data mover (bottom) is available in board versions that vendors can embed into the backup storage itself. (Image courtesy of ATTO Technology, Inc., www.attotech.com)
References in periodicals archive ?
POP relies on three Legato NetWorker servers and a Fibre Channel SAN to perform LAN-free backups.
1 introduces new functions such as support for mobile systems backup, LAN-free backup and restore of data using a SAN environment, and Windows 2000 exploitation and support.
Similar to Fibre Channel SANs first being adopted for LAN-free backup, iSCSI-enabled ATA disk arrays and tape arrays will form one of the early native applications of IP SANs.
Complete end-to-end Fibre Channel solutions such as LAN-free backup are starting to emerge in the distribution channels.
These benefits include device sharing across the network, LAN-free backup, serverless backup, extended distances, and simplified cabling, no practical limitation on the number of devices, and zoning ("virtual LANs") for security.
Still, a strong prevailing wind constantly blows in the direction of more open and more productive technology: LAN-free backup becoming server-less then NDMP-standardized, virtualization increasing capacity utilization and vendor-neutral capacity assignment.
There are several alternatives to consider when using a NAS and tape library for backup: use the tape library as direct-attached storage, use the NAS itself as a LAN-free backup device, or backup to a library over a SAN.