RAID Solutions for Data Redundancy & Fault Tolerance | WD

RAID Solutions for Data Redundancy & Fault Tolerance | WD

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Max Data Redundancy

RAID Solutions to Improve Data Redundancy & Fault Tolerance Shop Now

Max Data Redundancy

RAID Solutions to Improve Data Redundancy & Fault Tolerance Shop Now Western Digital’s lineup offers reliable, flexible options for RAID 1 that come ready to use — or that can be configured to your specific data redundancy needs.

RAID 1 offers the data redundancy and fault tolerance necessary to help ensure your data is well-protected. This means that, so long as you have one working drive in your system, you have your data.

Typically, RAID 1 is used in devices with two bays. That’s because this configuration only provides the usable capacity of one drive within the array, so two disks deliver a common sense single-disk fault tolerance. You can use RAID 1 in larger systems for greater fault tolerance, although you won’t receive boosts in speed or capacity.

Protected Give your data excellent protection and redundancy.

Prepared When things go wrong, you still have your data there so long as one drive works.

Powerful These RAID solutions can handle a wide range of professional and home uses.

{{productReferenceObject.badgesInfo.tagTitle}} {{productReferenceObject.pageTitle}} Capacity: {{productReferenceObject.capacity}} Starting at {{productReferenceObject.minPricedSkuObj.prices.sale.amountFormatted}} / {{productReferenceObject.minPricedSkuObj.prices.sale.billingPlanName}} {{productReferenceObject.minPricedSkuObj.prices.list.amountFormatted}} {{customPromotionInfo.ctaLabel}} {{customPromotionInfo.ctaLabel}} {{productReferenceObject.productCategory}} {{productReferenceObject.pageTitle}} from SanDisk from G-Technology from WD from Western Digital from Incase from NACON from BEASTGRIP from SanDisk Professional from WD_BLACK

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| Featured Products Find RAID arrays to maximize data storage uptime and availability.

Shop All RAID {{productReferenceObject.badgesInfo.tagTitle}} {{productReferenceObject.pageTitle}} Capacity: {{productReferenceObject.capacity}} Starting at {{productReferenceObject.minPricedSkuObj.prices.sale.amountFormatted}} / {{productReferenceObject.minPricedSkuObj.prices.sale.billingPlanName}} {{productReferenceObject.minPricedSkuObj.prices.list.amountFormatted}} {{customPromotionInfo.ctaLabel}} {{customPromotionInfo.ctaLabel}} {{productReferenceObject.productCategory}} {{productReferenceObject.pageTitle}} from SanDisk from G-Technology from WD from Western Digital from Incase from NACON from BEASTGRIP from SanDisk Professional from WD_BLACK

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| {{productReferenceObject.badgesInfo.tagTitle}} {{productReferenceObject.pageTitle}} Capacity: {{productReferenceObject.capacity}} Starting at {{productReferenceObject.minPricedSkuObj.prices.sale.amountFormatted}} / {{productReferenceObject.minPricedSkuObj.prices.sale.billingPlanName}} {{productReferenceObject.minPricedSkuObj.prices.list.amountFormatted}} {{customPromotionInfo.ctaLabel}} {{customPromotionInfo.ctaLabel}} {{productReferenceObject.productCategory}} {{productReferenceObject.pageTitle}} from SanDisk from G-Technology from WD from Western Digital from Incase from NACON from BEASTGRIP from SanDisk Professional from WD_BLACK

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| RAID Capacity Calculator Ready to test out your ideal RAID configuration? Use our RAID Capacity Calculator to select your RAID type and see how much available space you’ll have based on your requirements.

Calculate RAID Capacity Calculator1 Ready to test out your ideal RAID configuration? Use our RAID Capacity Calculator to select your RAID level configuration type, drive quantity, and drive capacity size to see how much available space you’ll have based on your requirements.

RAID type - Select - RAID 0 RAID 1 RAID 5 RAID 6 RAID 10 RAID 50 RAID 60 JBOD/JBOF Spanning Drive quantity - Select - 1 2 3 4 5 6 7 8 9 10 11 12 Drive size2 - Select - 1 TB 2 TB 4 TB 6 TB 8 TB 10 TB 12 TB 14 TB 16 TB 18 TB 20 TB 22 TB 24 TB Calculate Raw available capacity – Available for storage – Used for redundancy – Explore RAID products

Note that this setup results in a nested RAID. This means you're creating at least two RAID sets that sit within another. For example, RAID 10 means you have two RAID 1 sets that sit within a RAID 0, while RAID 50 means two RAID 5 sets within a RAID 0, and so on. This calculator assumes you are creating a typical setup with two subsets, though it would be possible to create more with enough disks.

For JBOD and JBOF, raw capacity is not a single "name space" or volume. Each drive is individual of each other and mounts as such. With Spanning, separate disks are "merged" into a single "logical" volume, so your system only mounts one volume. This is similar in capacity to RAID 0, although the data is not split across the drives. This means there is no performance boost. However, if a drive fails, only the data on that drive is lost rather than losing everything within the larger volume.

For JBOD and JBOF, raw capacity is not a single "name space" or volume. Each drive is individual of each other and mounts as such. With Spanning, separate disks are "merged" into a single "logical" volume, so your system only mounts one volume. This is similar in capacity to RAID 0, although the data is not split across the drives. This means there is no performance boost. However, if a drive fails, only the data on that drive is lost rather than losing everything within the larger volume.

1. This RAID Capacity Calculator is provided for illustrative purposes only. Capacity is calculated based on parameters selected in the tool. Please refer to individual device specifications to confirm RAID support, drive quantity allowed, and capacity support. 1GB = 1 billion bytes and 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment.

2. To achieve optimal RAID capacity and performance, we advise using disks with the same capacity in your array. Using different-sized drives will result in wasted, unused space for the larger capacity drives. This does not apply for JBOD/JBOF setups since the drives function independently of each other.

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