Uploaded March 2025 | Updated September 2026, 2 weeks ago
How to troubleshoot a NAS ft @Level1Techs
Make it with Squarespace - Save 10% squarespace.com/saradietschy
10gig ethernet adapter - amzn.to/4iyITkN
The newer version of my synology NAS - amzn.to/4bCdn2Q
Synology expansion unit - amzn.to/4bEZyRo
NAS Seagate hard drives I use (they're great) - amzn.to/4kWoiIL
👆🏻 Affiliate links
iPerf/ htop details:
Pre-Requisites for Network Testing
1. Install Homebrew (macOS users):
• Open Terminal and paste the following command:
/bin/bash -c “$(curl -fsSL raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)”
• Follow the on-screen instructions to complete the installation.
2. Install iPerf3 via Homebrew:
• In Terminal, run:
brew install iperf3
• Alternatively, you can download iPerf3 from the official site:
https://iperf.fr/iperf-download.php
Network Testing with iPerf3
• SSH into your NAS:
• Open Terminal and run:
ssh your_username@nas_ip_address
• Launch iPerf3 in server mode on your NAS:
• Run:
iperf3 -s
• From your computer, start iPerf3 in client mode:
• Open another Terminal window and run:
iperf3 -c nas_ip_address
• Review the results:
• Look for throughput around 8–10Gbps. If speeds are lower, inspect cables, switch settings, and consider whether jumbo frames may help.
Monitor CPU Usage with htop on Your Synology NAS
• Install “SynoClii Monitor Tools”:
• Log in to your NAS’s web interface and open the Package Center.
• Search for “SynoClii Monitor Tools” and install it (this package includes htop).
• SSH into your NAS:
• Open Terminal and run:
ssh your_username@nas_ip_address
• Launch htop:
• Simply type:
htop
• Monitor during file operations:
• Perform read/write tasks and observe CPU load. Expect low usage during reads and a moderate increase during writes. If CPU usage is unusually high, your NAS CPU might be a performance bottleneck.
📱 Follow Me
twitter.com/saradietschy
instagram.com/saradietschy
Podcast YouTube channel - youtube.com/thatcreativelife
💼 Business inquires for sponsorships
Email my manager adam@twowestentertainment.com
cc me at sarad@saradietschy.com
How to troubleshoot a NAS ft @Level1Techs
Make it with Squarespace - Save 10% squarespace.com/saradietschy
10gig ethernet adapter - amzn.to/4iyITkN
The newer version of my synology NAS - amzn.to/4bCdn2Q
Synology expansion unit - amzn.to/4bEZyRo
NAS Seagate hard drives I use (they're great) - amzn.to/4kWoiIL
👆🏻 Affiliate links
iPerf/ htop details:
Pre-Requisites for Network Testing
1. Install Homebrew (macOS users):
• Open Terminal and paste the following command:
/bin/bash -c “$(curl -fsSL raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)”
• Follow the on-screen instructions to complete the installation.
2. Install iPerf3 via Homebrew:
• In Terminal, run:
brew install iperf3
• Alternatively, you can download iPerf3 from the official site:
https://iperf.fr/iperf-download.php
Network Testing with iPerf3
• SSH into your NAS:
• Open Terminal and run:
ssh your_username@nas_ip_address
• Launch iPerf3 in server mode on your NAS:
• Run:
iperf3 -s
• From your computer, start iPerf3 in client mode:
• Open another Terminal window and run:
iperf3 -c nas_ip_address
• Review the results:
• Look for throughput around 8–10Gbps. If speeds are lower, inspect cables, switch settings, and consider whether jumbo frames may help.
Monitor CPU Usage with htop on Your Synology NAS
• Install “SynoClii Monitor Tools”:
• Log in to your NAS’s web interface and open the Package Center.
• Search for “SynoClii Monitor Tools” and install it (this package includes htop).
• SSH into your NAS:
• Open Terminal and run:
ssh your_username@nas_ip_address
• Launch htop:
• Simply type:
htop
• Monitor during file operations:
• Perform read/write tasks and observe CPU load. Expect low usage during reads and a moderate increase during writes. If CPU usage is unusually high, your NAS CPU might be a performance bottleneck.
📱 Follow Me
twitter.com/saradietschy
instagram.com/saradietschy
Podcast YouTube channel - youtube.com/thatcreativelife
💼 Business inquires for sponsorships
Email my manager adam@twowestentertainment.com
cc me at sarad@saradietschy.com
