What is RAID 5 and 10?
Choose RAID 5 or RAID 10?
What are the differences between RAID 5 and RAID 10?
This post fromMiniToolwill answer to these questions and elaborate on RAID 5 vs RAID 10.
Different RAID levels need different number of hard drives and offer diverse redundancy, fault tolerance and performance.
So, RAID 5 vs 10, what are their differences and which one is better?
This post shows the answer.
What Are RAID 5 and RAID 10?
Unlike inRAID 4, parity information is distributed among the drives.
It requires that all drives except one can be presented to operate.
When one drive is failed, subsequent reads can be calculated from the distributed parity.
In this way, data can be recalculated and recovered.
In addition, write performance will increase because all RAID members participate in the writing requests.
Briefly speaking, it combines two RAID levels: RAID 0 and RAID 1.
Related article:RAID 0 VS RAID 1: Whats the Difference and Which Is Better?
So, it needs at least 4 hard drives.
So, the next part will further introduce them.
RAID 5 vs RAID 10: What Is the Difference?
RAID 5:Its disk utilization is more than 50%.
There is a formula to calculate the disk utilization of RAID 5.
It is N-1/N(N represents the number of disks).
If the number of disks in RAID 5 is increasing, the disk utilization increases, too.
Hence, its disk utilization is 50%.
To be honest, it is a bit of waste of space.
RAID 5 can tolerate the failure of 1 disk.
In addition, if a hard drive fails, data recovery is also slow.
RAID 10 provides excellent fault tolerance and it has 100% redundancy.
So, it is much better than RAID 5.
Here is an example to help you understand.
Only when all disks in RAID 1 group in RAID 10 are failed, the data will lose.
So, the RAID 10 provides better fault tolerance than RAID 5.
To make discussing performance easier, we need to define a few terms to help us easily understand.
Four operations correspond to each effective one.
This gives us a write penalty on RAID 5 of four.
So, the formula for RAID 5 write performance is N*X/4.
Read Performance
Both RAID 5 and RAID 10 provide good read performance because of stripping.
Here, we summarize the differences between RAID 5 and RAID 10.
Good read performance because of stripping
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Write performance lower than RAID 10
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But if one of the disks fails, you may suffer data loss.
For example, if one of RAID 5 hard drives fails, data recovery would be difficult.
Besides, any RAID level will not protect you from multiple disk failures.
When one disk is offline for any reason, your disk array is not fully redundant.
Therefore, atraditional file backup or hard drive backup is recommended.
MiniTool ShadowMaker is designed to back up the operating system, disks, partitions, files and folders.
MiniTool ShadowMaker also enables you to sync files to other locations andclone OS to SSDto boost PC performance.
Now, we will show you how to back up hard drive to protect your data effectively.
Download MiniTool ShadowMaker from the following button.
MiniTool ShadowMaker TrialClick to Download100%Clean & Safe
2.
Install it on your system, and then launch it.
ClickConnectinThis Computerto enter its main interface.
After entering its main interface, go to theBackuppage.
Then clickSourcemodule to choose the backup source.
- pick the hard drive you want to back up, and then clickOK.
Next, clickDestinationmodule to select a hard drive to store your backup image.
you should choose an external hard drive.
Do not nudge the source disk as the target disk.
After selecting the backup source and destination, clickBack up Nowto perform the backup task immediately.
Once all steps are finished, you have successfully backed up the hard drive and the data on it.
Here, we’ll make it easy for you.
Bottom Line
To sum up, this post shows what the RAID 5 and RAID 10 is.
After reading this post, you may have known which one is better.
So, you’re free to also try the above method.
