Can you run RAID on external hard drives?

Can you run hard drives in RAID?

Two or more hard drives: If you decide on Windows software RAID, you may use any drives you choose. They need not be the same size if you’re mirroring individual volumes, though it’s generally a good idea.

Do all hard drives support RAID?

The vast majority of motherboards sold today have built-in support for RAID. … Keep in mind though, that even on the off chance your motherboard doesn’t have built-in RAID support, software RAID is still most likely possibly, provided the board has a couple of open SATA ports to connect additional drives.

Do hard drives have to be identical for RAID?

Must hard drives in a RAID array be identical? No. It is perfectly valid to use hard drives from different manufacturers, model numbers, sizes, and rotational speed (spindle speed or RPM).

Can you RAID 2 external hard drives?

While you often can combine multiple external hard drives, there can be problems doing so. If the controller hardware differs between the two, they may not be able to be combined (or behave poorly even if you can combine them). And as these are older USB drives, as part of a RAID they’re going to be very slow.

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Which is faster RAID 5 or RAID 6?

In general, RAID 6 offers greater data protection and fault tolerance than RAID 5, but at the same time, it’s write performance is slower than RAID 5 because of double parity, though the read operations are equally fast.

Is it worth using RAID?

When Should I Use RAID? RAID is extremely useful if uptime and availability are important to you or your business. Backups will help insure you from a catastrophic data loss. But, restoring large amounts of data, like when you experience a drive failure, can take many hours to perform.

Which RAID is best for redundancy?

Redundancy: If redundancy is most important to you, you will be safe choosing either a RAID 10 or a RAID 60. It is important to remember when considering redundancy that a RAID 60 can survive up to two disk failures per array, while a RAID 10 will fail completely if you lose two disks from the same mirror.

Which is better AHCI or RAID?

If you are using a SATA SSD drive, AHCI may be more suitable than RAID. If you are using multiple hard drives, RAID is a better choice than AHCI. If you want to use an SSD plus extra HHDs under RAID mode, it’s recommended that you continue using RAID mode.

Can you RAID 0 two drives?

RAID 0 is the only configuration that doesn’t really fit into the RAID definition since there’s no redundancy unless you setup RAID 0+1. However, you should be fine running those 2 drives in a RAID. You can run different size and speed drives in a RAID configuration.

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Can you replace a RAID drive with a bigger drive?

You can usually replace a failed RAID member with a larger drive, but not a smaller drive. The RAID will only use the space equivalent to the smallest drive in the array. You can also usually replace a failed RAID member with a drive that runs at a different speed than the other array members.

Can you use different size hard drives in a NAS?

If you dont want any redundancy (and the os allows it) you could put disks of different sizes in and concatenate the storage. If you want to use mirror the disks (raid 1) then you can probably use different size disks but you will only get the total capacity of the smallest disk.