Why You Need a Standby Disk In Your RAID Array
One of the benefits to a RAID server with a RAID controller is greater fault tolerance than stand-alone hard drives or servers. When a RAID controller detects failure of one of its RAID drives, as long as all the drives on that controller are redundant and a spare drive is available, the controller will automatically rebuild the array with a functional drive. You may detect a slight delay in performance during the rebuild operation, but you will not face lost data on your RAID array.
To ensure that your RAID controller will rebuild your array, always include a spare SCSI drive for each controller in your RAID array (sometimes called a Hot Spare). The system will not rebuild the RAID array across controllers.
If you experience RAID drive failure and do not have a Hot Spare in your RAID array, you’ll need a professional to swap the RAID drive and recover your lost data. Similarly, if your RAID controller experiences system failure, there is rarely a do-it-yourself fix.
Important Data Resides On Your RAID Array
At 24 Hour Data, we know your business is counting on the data, files, and applications stored on your RAID array. If you experience RAID failure and you don’t have a hot spare SCSI drive — or if you do but your RAID array has experience complete, cascading system failure — call us right away.
Our RAID data recovery experts will recover your lost data and get you back to business fast.
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