RAID 0 vs RAID 1: What’s the Difference and Which Is Better?

RAID stands for Redundant Array of Independent Disks. It’s a disk organization strategy that focuses on durability and performance. RAID 0 and RAID 1 are two different types of RAID. RAID 0 stands for Redundant Array of Independent Disk level 0. RAID 1 means Redundant Array of Independent Disk level 1.

Disk striping is employed in RAID 0 technology, which is the primary distinction between RAID 0 and RAID 1. Disk mirroring, on the other hand, is used in RAID 1 technology.

raid 0 vs raid 1

RAID 0, RAID 6, RAID 1, RAID 5, and RAID 10 are the most popular. Each RAID level is intended to accomplish a certain aim. Let’s look at the differences between RAID 0 and RAID 1. Their benefits, drawbacks, and which performs best in different situations in this post.

What Do You Mean By Raid 0?

raid 0 in raid 0 vs raid 1

The Raid 0 arrangement splits data over many disks. Multiple disks can be read and written at the same time. Improve the overall speed of the procedure. Data is distributed across numerous drives in a stripe, whereas information is available on a single drive in a striped unit. Striping can occur in a variety of ways.

Consider the following scenario: we have ten hard disks and 32MB of data that has to be striped across them. Some systems may stripe one kilobyte of data from disk 1 to disk 10.

Then repeat the process while others stripe data through the odd numbers first. The even numbers will come next. It depends on whether stripping is performed at the byte, block, or partition level.

What Do You Mean By RAID 1?

raid 1 in raid 0 vs raid 1

This RAID level, often known as mirroring, copies data across two or more drives for increased redundancy. This setup necessitates a minimum of two drives, as data can be written to both simultaneously. Because data may be read from both drives at the same time, read operations are quick. However, because the data must be written to two disks, write operations will be slower.

Disk RAID 0 vs RAID 1 Comparison


Advantages raid 0 vs raid 1
Raid 0Raid 1
Improved performance: When data is striped across four disks, the bandwidth is increased fourfold. If each drive performs at around 250 Input Output Operations per Second (IOPS). Fault tolerance: This level is best for mission-critical applications. If one drive fails, the other will take over immediately. 
Cost-effective: This configuration is the cheapest of all RAID levels and is supported by all RAID controllers.Data redundancy is the most significant benefit of RAID 1, as data is copied over two or more disks.
Easy to set up: There isn’t much to set up for RAID 0, making it the simplest and fastest to set up.High availability: Data is replicated across numerous disks. It will always be available when it is needed, and the risk of data loss is shallow.
There’s no overhead because RAID 0 doesn’t use parity, and the entire drive’s capacity is used for storage.High performance: Data may be read from two or more devices simultaneously, which makes it quick.
This arrangement will have 1000 IOPS, making it extremely fast for users.There will be no impact on consumers because both disks contain identical data.


Disadvantages raid 0 vs raid 1
Raid 0Raid 1
RAID 0 setup has the disadvantage of having no parity and thus no fault tolerance. It means that if your data is corrupted or lost.No real-time swapping: When a disk fails, the secondary disk does not automatically take over. Before the secondary drive can take over, the system must be restarted, which can be inconvenient.
RAID 0 has the disadvantage of having no parity and thus no fault tolerance.Reduced storage capacity: Your overall storage capacity is reduced since the same data must be saved twice.
You won’t be capable of retrieving it because there is no resiliency or backup. As a result, RAID 0 is unsuitable for vital data.Expensive: Because this RAID 1 array takes more space to implement, it is more costly than RAID 0.

Difference between RAID 0 vs RAID 1

  • RAID 0 refers to data stripping, whereas RAID 1 refers to data mirroring.
  • RAID 0 stores all of the data in one location. It can be stored in stripes in various locations using RAID 1.
  • RAID 0 allows for quicker read and write speeds. RAID 1 has a slower writing speed but a faster read speed.
  • At least two disks are needed for RAID 0. (same for RAID 1). RAID controller processor, RAID controller, and RAID controller Bandwidth are the factors that determine its speed. RAID controller processor, RAID controller, and RAID controller bandwidth are the factors that determine RAID 1 rate.
  • Because there is no equality and no mirroring functionality, Raid 0 has no redundancy. Raid 1 offers the most redundancy options. Its mirroring behavior is the cause behind this behavior.
  • When the RAID system breaks, you must rebuild the entire system. In Raid 0, the rebuild time and cost are significantly lower, both in terms of time and cost. System crashes, Bit errors, and disk failures are all factors that influence RAID 0 dependability. 
  • Due to mirroring, the rebuild time for RAID 1 is increasing. Compared to RAID 0, uncorrectable bit mistakes, hardware size, and the latest edition all affect RAID 1 reliability.
  • RAID 0 is appropriate for workstations used in graphic design and video editing. RAID 1 is suitable for web servers or servers with compact chassis that can only use two drives.

When to Use RAID 0 in Real Life Scenarios

RAID 0 is greatest used in places where vital data isn’t involved or isn’t a concern. It is commonly found in personal computers due to its inexpensive cost.

Capturing uncompressed high-definition video

Capturing high-definition video and saving it to a hard disk in an uncompressed format. You’ll need a hard disk with a large capacity. A comparable write speed to swiftly write the data to the disk. You won’t have to stop as long to access your video files this way.

Gaming and Gaming Servers

Gamers will use RAID 0 for a better experience and faster load times, while servers will give faster online game rates. It is only valid for online games when data is saved in the cloud.

Audio/Video Streaming in Real-Time

RAID 0 can assist in removing stutter and other performance concerns in live streaming because it does not rely on data redundancy. 

Editing of images and videos

Large, graphically intensive files necessitate fast speeds to be correctly worked with.

When to Use RAID 1 in Real Life Scenarios

Where vital data is stored, and the risk of loss must be reduced, RAID 1 is a must. As a result, it is widely employed by enterprises.

Electronic Records or Archives

RAID 1 can readily handle the extra traffic for Electronic Records or Archives Databases that various users often access.

Financial Systems

Accounting and payroll are two areas where data loss can be disastrous.

Enterprise Web Servers

The infrastructure of multiple key tools of an enterprise, where data loss can severely cripple operations.

What to choose: Raid 1 vs Raid 0?

RAID 0 and RAID 1 are two sorts of setups or levels that can be used with a disks array. RAID 0 provides striping, which improves performance, but does not provide fault tolerance or data redundancy. 

RAID 1 allows mirroring, which means comparable data is available on both disks. Because there are two writes, RAID 1 is slightly slower than RAID 0, but read operations are similarly quick.

These RAID levels perform well in many settings due to the differences mentioned previously. RAID 0 is the method to go when you prioritize performance over data redundancy. In contrast, RAID 1 is the way to go when you’re dealing with mission-critical data, and redundancy is a must.


You are aware that there are specific reasons for selecting any RAID level. It depends on your needs and the size of your activities. Therefore, it is prudent to evaluate these factors.

Apart from home users, web hosting corporations are the most common performance data protection rebuild. They are cost-effective RAID technology. Hope this article helped you to understand the difference between raid o and raid 1

Frequently Asked Questions

What’s the point of RAID 0?

RAID 0 is used to improve the performance of a server. “Disk striping” is another name for it. Data is written across many drives in RAID 0. If one disk fails, the complete array is affected, and the risk of data loss or corruption grows.

Is RAID 0 faster than a separate drive?

You may step reads and writes across the two drives simultaneously. Hardware-RAID-0 is always quicker than a single drive. The disadvantage is that if either drive fails, all data on both disks is lost.

When should I use RAID 1?

If you want to obtain extra data redundancy and read speeds for a low price, RAID 1 is a suitable option. It’s a fantastic starting point for those wishing to boost backup performance and achieve high uptime.

Why is RAID 0 bad?

Because saved data is broken into pieces and scattered over all of the devices in the array, RAID 0 is extremely dangerous. Because no single drive receives all of the data, the data on the other drives becomes meaningless if one disk fails.

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