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Products | SANmelody | Application Scenarios | Backup
Avoiding Disruptive Backups Data Protection Without the Interruptions Regular data backups are essential, but they are also very disruptive and time consuming, especially as the volume of information grows and the process gets longer and more complicated. Then there is the question of data recovery -- how reliable is it and how quickly can it be done? DataCore offers a simple and effective solution that will let you achieve your data protection and recovery objectives without having to frequently interrupt your business applications. The solution takes advantage of backup products you already have in place. Central to DataCore's approach is the use of a Disk Server -- a general purpose PC capable of making its disk space available to other application servers such as email, web, and database machines. A standard Windows PC can be converted into a dedicated Disk Server in minutes by installing DataCore's SANmelody™ software. The Disk Server can maintain up-to-date copies of each application server's internal disk drives to recover quickly from a failed drive or a damaged server.
Disk Snapshots Take Place of Daily Backups Disk Servers can be configured to periodically generate daily 'snapshots,' or point-in-time copies, of critical volumes on separate disks -- eliminating the need for daily tape backups. The snapshots may be mounted just like a removable drive to rapidly restore an application to a known good image from the previous day. Where conventional tape backups can disrupt application processing for several hours, an online snapshot only requires a brief application pause to record the current state of the data. Immediately after a snapshot is taken, the 'live' source volume is released and applications may resume updates. SANmelody then captures subsequent changes to the data in real-time on a separate volume. This process dramatically reduces the time to create a "backup copy." 
Offload Weekly and Monthly Tape Backups As Well While the principal advantage of SANmelody snapshots is having a backup copy to quickly fall back on, you'll find that your longer term tape backup regiment also improves. Disk servers enable weekly and monthly backups to proceed in the background using the offline snapshots, rather than the live production data. This technique enables tape backups to occur in the background while applications run uninterrupted. Download a pdf of this article.
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