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. The Fibre Channel backbone easily moves up to 3TB of data onto tapes each day.
July 2000--TSM V4.1 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.
In addition Legato's Celestra Power system will deliver live, serverless, LAN-free backup to PRIMECLUSTER.
Leading industry analysts have increasingly cited the benefits of "LAN-free backup" as a key component of advanced storage systems.
Modern backup techniques such as Third Party Copy provide a way of performing server-less and LAN-free backup over a SAN and, hence, have a minimal impact on file servers and the LAN.
Legato Systems Inc has launched Celestra Power 1.5, a new version of its software that is designed to deliver serverless LAN-free backup of mission-critical data.
SAN-BASED LAN-FREE BACKUP improves backup performance and LAN operations by relocating backup data traffic off the conventional LAN and onto a dedicated, high-speed storage network.
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.