What Is The Difference Between SSD Raid VS HDD Raid?

SSD Raid

Here is the detailed major difference between SSD Raid Vs HDD Raid. As you guys know that the storage system of a computer is always been the slowest component in the chain. Now, your CPU also has a fast cache memory. This will also interact much slower (yet still fast!) with RAM and then we have your systems disks. Also, this will again order this for the magnitude slower.

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What is RAID?

A RAID stands for Redundant Array of Independent/Inexpensive Disks. This is a method of combining multiple disks that is available to improve performance, reliability, and both. The SSDs quickly taking over from mechanical hard drives. Also, this will present us with a choice. An HDD Raid Vs SSD Raid. Having no absolute winner here, so this will also let you take a close look at the considerations.

SSD Raid

A Recap Of RAID Levels:

So, there is no universal standard for RAID configurations. Now, there are several so-called RAID “levels”. This will also become pretty commonplace. If we compare this HDD RAID technology against SSDRAIDtechnology. This is also very important to recap the pros, cons. Also, there is the number of drives that you will need for each type of RAID setup. This will also let you go over them in short order:

  • A RAID 0 will also need two disks. This will also provide you no redundancy and this will also allow you lots of speed and no disk space penalty.
  • The RAID 1 also needs two disks and this will also provide redundancy. There are only small speed gains and also having a 50% disk space penalty.
  • A RAID 10 needs four disks that provide redundancy. Also, provides fast reads, better write speeds, and sacrifices 50% of disk space.

Now, there are of course other more complex RAID levels (e.g. 1E, 5, 50, 6 & 60). So, there are three and also the most common typical users that would be interested in. You can also buy this On Amazon.

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In this case, we will also figure out the most common reason. There is someone that might be wondering about RAID. This is how it relates to the SSDs comes from this specific comparison. Now, we will also get this one out of the way first.

Having Mechanical hard drives that are pretty slow. This is one of the popular ways to get better throughput. You have to combine two identical drives available into the RAID 0 configuration. Also, the data is “striped” across both of the drives. In this case, this will act as one hard drive, but with (theoretically) twice the transfer speed. From each of the drives, this has a unique part of your data. Then you will always have both of the drives contributing to any operation.


unfortunately, if it comes to raw speed then there is a single SSD. That will always be going to win out against a RAID 0 hard drive setup. This is even one of the fastest, and the most expensive 10,000 RPM SATA III consumer hard drive. Also, this will only top out at 200MB/s. In theory. There are two of them in RAID0 that would only manage a little under twice that.

This is just about any of the SATA III SSD and it will get very close to the limit of the connection at 600MB/s. In case, if we are talking about NVME SSDs that will also use this PCIe protocol. So, this will typically read speeds exceed 2000MB/s.

Alternatively, if pure performance is what you are looking for. This is a single SSD that will always beat a pair of mechanical drives. Also, this is even if they are the fastest mechanical drives in the world.

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For the same purpose that will go for reliability and data protection. In case, if you have a RAID 10 setup that is with four hard drives. Now you can still get double the drive speed and you can also lose a drive without losing any data. Also, despite this having a single SSD will still be a more reliable solution. The SSD also has a limited number of writes before they can no longer overwrite existing data. In this case, you can still read all of the data on the disk.

SSD Raid

Now, this is the Natural failure of an SSD that is incredibly uncommon. Then you always have the option of running two SSD in RAID 1. In this case, there is no significant speed benefit. There is one drive that can fail without data loss. So, we wouldn’t recommend spending money on a RAID 1 SSD setup purely for data safety. Also, this is far more cost-effective to simply back up your hard drive image. This is also an affordable external drive or the cloud. From most of the desktop systems that are not mission-critical.

The HDD RAID vs SSD RAID General Considerations

In this case, we have dealt with the single SSD scenario. So, let us talk about direct RAID-to-RAID comparisons. Now, That is it. The mechanical drives in RAID compared to SSDs in RAID. So, there are three main aspects to consider. A performance, price, and data reliability. Also, let us look at each one in more detail.

A Performance:

Now, you will probably be unsurprised to hear that. The SSD RAID configuration will always beat any mechanical drive RAID setup in raw performance. But the real question is that how much performance you will gain from running SSDs in RAID. So, whether it’s worth it. Also, this is a complicated question.


Having one factor that is hardware versus software RAID. The dedicated hardware RAID controller will also provide better performance than a software-based solution. Moreover, when a speed increases, then the other components in your computer might become a limiting factor or “bottleneck”.

Having day-to-day use, there is a little difference between a SATA III SSD and an M.2 NVMe PCIe drive. Also, the latter being five or six times faster. Now, the games don’t load noticeably faster, and also the applications aren’t necessarily more snappy. A Workload such as a video editing or professional applications. This will also involve the massive dataset analysis. Alternatively, you will also eat as much of the bandwidth as you have to offer.

Also, this means that putting two SSDs in RAID 0 probably. So, this won’t improve the average user experience and then the cost could be better spent elsewhere in the system.

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HDD Raid vs SSD Raid: Price!

However, SSDs have come down a lot in price over the last few years. So, there are still many times more expensive on a per-gigabyte basis than mechanical drives. Also, the mechanical drives have been pushing the capacity of late. From this, they even can’t compete on performance.

Now, this will also make the SSDs unattractive as redundant mass storage. Having Mechanical drivers that is purely-redundant or redundant and performance RAID configurations. They were still very relevant and also cost-effective for desktop users. In case, if you run a home NAS (network-attached storage) system for streaming or file sharing and it is the most practical choice.

Also, if you absolutely need the speed of two SSDs in RAID 0 or have a mission-critical drive. So, the benefits from RAID 1, and if you are looking at twice the price of running a single drive. The only thing you can also decide if 200% of the cost is worth the advantages of either option.

Reliability & Endurance:

The SSD endurance is also something that we have written about before. This is also very complex while comparing with mechanical drives. The SSDs also wear out when they have been written too much. Although, this is for modern drives and you have to write endurance that is also far beyond what most users will also ever need.


Having a complete loss of data even if an SSD cannot be written to and is very unlikely. There are many ways that RAID exists because mechanical drives are prone to failure in the first place. You have to Head move, SSDs are so much more reliable that they don’t make redundant RAID compelling.

What To Do?

So, as you can see, if there is no situation where the answer will always be HDD RAID or SSD RAID. This is also very much dependent on your specific needs. Although, we can also provide some of the general guidelines:

  • So, Most users won’t benefit from SSD RAID speed improvements.
  • The HDD RAID is still best for mass storage.
  • An SSDs are reliable enough to make RAID sensible only for mission-critical uses.

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Now, your CPU also has a fast cache memory. This will also interact much slower (yet still fast!) with RAM and then we have your systems disks. Also, this will again order this for the magnitude slower. For the same purpose that will go for reliability and data protection. In case, if you have a RAID 10 setup that is with four hard drives. Now you can still get double the drive speed and you can also lose a drive without losing any data

This is also a clear picture of where each approach works best. Now, you should have a much better idea of which option will make the most functional and economic sense for you.

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