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How can you enable parallel backups to multiple external drives to improve backup throughput?

#1
03-23-2024, 04:21 PM
When it comes to strategies for improving backup throughput, parallel backups to multiple external drives can be a game-changer. I started experimenting with this approach a while back, and I found it incredibly effective. In normal setups, backing up data to a single external drive can lead to bottlenecks, especially when dealing with large datasets. The speed and efficiency of the process can increase significantly when you leverage multiple drives simultaneously.

To kick things off, you first want to ensure that your external drives are connected via fast interfaces. USB 3.0 or higher should be the standard. If your environment allows, Thunderbolt interfaces can even be used for additional speed. When I configured my backup setup, I made sure to have multiple external drives, each connected to different ports. This way, the data can flow freely without saturating a single connection.

Let's take a look at how you can use software like BackupChain, which works seamlessly with Windows systems. While I won't provide a personal endorsement, it's a known fact that BackupChain supports parallel backups. What happens here is that the application can split the backup job into multiple streams. Each stream can be sent to individual drives, drastically cutting the time it takes to complete the process. I've used BackupChain in various setups, and it can run multiple backups at the same time, making it easier to manage my data.

You might ask how to set this up efficiently in your environment. Start by organizing your backup jobs into separate categories. For instance, if you have a folder structure that contains media files, project documents, and system images, consider creating different backup jobs for each category. This not only makes the backups more manageable but also allows the software to handle them in parallel without overwhelming your drives.

I often use scripts to automate the backups, which can be particularly useful if you're managing a system with frequent updates or changes. You can write batch scripts or PowerShell commands to trigger multiple backups at once. For instance, if I have three external drives labeled D:, E:, and F:, I'll create a script that starts a backup process for each drive with a slight pause between them to prevent overwhelming the system resources.

An example of the command you could use in PowerShell might look something like this:


Start-Process -NoNewWindow "BackupUtility.exe" -ArgumentList "-source C:\Data -destination D:\BackupData"
Start-Sleep -Seconds 5
Start-Process -NoNewWindow "BackupUtility.exe" -ArgumentList "-source C:\Data -destination E:\BackupData"
Start-Sleep -Seconds 5
Start-Process -NoNewWindow "BackupUtility.exe" -ArgumentList "-source C:\Data -destination F:\BackupData"


This way, I'm ensuring that while one drive is writing data, the others are either waiting for their turn or processing different data sets. The sleep command gives the system a little breathing room and helps prevent performance throttling across the board.

Another trick I found helpful is utilizing the performance optimization settings available in your backup software. Many applications, including BackupChain, have options for adjusting the number of parallel threads, chunk sizes, and mechanisms for checking the integrity of the backups. This means you can tune your settings based on your environment's specific needs. For instance, during testing, I noticed that smaller chunk sizes resulted in better performance when working with numerous small files, while larger chunk sizes worked better for massive files.

I also recommend monitoring your system's resource usage when you have parallel backups running. Tools like Resource Monitor or even Task Manager provide insights into CPU, memory, disk utilization, and network load. This monitoring will allow you to tweak your settings based on real-world performance and helps in identifying potential bottlenecks. If your CPU usage spikes too high, you might reduce the number of simultaneous backup tasks temporarily.

Moreover, pay attention to your drive speeds. If your drives are different in terms of read/write speeds, balancing the load becomes crucial. It's tempting to simply dump everything onto the fastest drive, but you might find yourself limiting the throughput on other drives that could handle more data. I once made this mistake and realized afterward that using all available drives evenly resulted in a much shorter total backup time.

In addition to physical drive connections, consider using a NAS (Network Attached Storage). Depending on your network setup, a NAS can often handle multiple connections from a backup server. During one project, I set up a NAS with eight drives and configured it to appear as individual shared drives on my PC. This setup allowed me to direct different backup streams to various NAS shares, thus optimizing the throughput. Given that a NAS is usually on the network, ensure your network isn't being saturated by other users to maintain speed.

For those who work in larger organizations or deal with significant amounts of data, leveraging RAID configurations can also enhance drive performance. RAID 0 provides a speed boost by striping data across multiple drives, which can be particularly helpful if you're working with large, continuous backup jobs. Just keep in mind the trade-off-you'll want to make sure you have reliable backups since RAID 0 provides no redundancy.

Don't overlook the power of cloud backups as a supplementary strategy. While cloud services often don't deliver the same raw speed as local storage, syncing your backups to the cloud while also performing local backups can offer an additional layer of protection without much manual intervention. I set up a hybrid solution where my local backups run first, followed by a sync to a cloud service. This successfully minimized my risks and allowed maximum flexibility.

One more point worth considering is the type of data you are backing up. Incremental backups can save you a lot of time. Instead of copying everything at every backup task, you can back up only the data that's changed since the last successful backup. Many programs, including BackupChain, can be configured to handle these types of backups. This means that during the times when multiple drives are working in parallel, you're not constantly shoving duplicate data across, which speeds up the entire process significantly.

Taking into consideration all these factors, I found that forming a practical strategy revolving around parallel backups not only hiked my throughput but also enabled me to prioritize data integrity and quick recovery options. You might have to try a few configurations, but the end result of having multiple drives going at once can make those dreaded backup windows far less of a nightmare. Eventually, you'll start to see the value of taking the time upfront to set things up correctly will pay off in dividends during your full recovery scenarios. Happy backing up!

ron74
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Joined: Feb 2019
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How can you enable parallel backups to multiple external drives to improve backup throughput?

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