When using the New network volume wizard, you can choose a RAID's radio button to review its strengths and weaknesses in the center of the window. For example, a volume with four disks supports all levels of RAID except for RAID 1, which is not compatible with volumes greater than three disks. The level of RAID available to a volume is contingent upon the amount of disks. Note: Step-by-step instructions on how to use the New network volume wizard are available in New network volume wizard. The tooltip can be accessed by clicking on the i next to Select your choice. The star ratings are available via a tooltip on the RAID selection step. To help administrators configure RAID volumes, the NAS OS New network volume wizard provides a star rating system with an intuitive storage capacity bar. Understanding RAID and its many levels is critical when deciding how best to apportion the disks in your NAS. Important info on NAS backup: It is recommended that all users back up data to DAS or another NAS as further protection against disk failure or secondary points of failure (e.g. However, there is NO DATA PROTECTION when the volume has only one hard drive. Additionally, expanding RAID 1 and SimplyRAID will provide protection against the loss of a single hard drive. When other disks in the enclosure are available, expand the single-disk volumes and data will remain intact on the volume during expansion (see Volume Expansion: Single-Disk and Unprotected Volumes). Note on enclosures with one hard drive: You can create a SimplyRAID or a RAID 1 volume with a single drive in the enclosure. Single-disk protection means the data is protected in case one hard drive fails or is missing.ĭouble-disk protection means the data is protected in case two hard drive fail or are missing. 8 disks: SimplyRAID double security with double-disk protection. 4 disks: SimplyRAID single security with single-disk protection.2 disks: SimplyRAID single security with single-disk protection.0 disks: SimplyRAID single security with single-disk protection will be configured during the NAS OS installation.The factory default RAID for a NAS OS device varies upon the amount of disks in the enclosure: The NAS OS New network volume wizard includes a helpful tooltip with star ratings for performance and protection based upon the amount of disks in the volume.ġ (no data protection) or 2 (with data protection) Note that the levels of performance and protection will differ based upon the number of drives in the volume. Refer to the table below for an overview of the RAID modes available to your NAS OS device.
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