[Help] NAS not available when busy

CPU, memory, fan, process, services status, system log, tempreture
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sukanm
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[Help] NAS not available when busy

Post by sukanm »

I have an F5-221(NAS) and a D4-320(DAS). The DAS is connected directly to the NAS via the USB port. When I copy a large amount of files from the NAS to the DAS (for backups etc), the NAS is not available from my mac, but can be reached once the file copy has stopped.

TOS Version is 4.2.44-2203011626

I assume this is because the NAS CPUs are busy - but is this expected? Is there anything that I can do to mitigate this?
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TMzethar
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Re: [Help] NAS not available when busy

Post by TMzethar »

When NAS is performing high-speed read and write operations, the CPU, disk I/O, and network interfaces can all be in a high-load state. It is possible to cause similar phenomena.

If you wish to understand the specific load conditions, you can monitor them by entering the following commands in the terminal:
viewtopic.php?t=2350

Code: Select all

pidstat 10
pidstat -d 10
iostat 10
netstat -i
watch -n ifstat
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sukanm
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Re: [Help] NAS not available when busy

Post by sukanm »

Is there a way to prevent this happening? The commands above seem to be only focused on monitoring what is going on.
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GevinKe
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Re: [Help] NAS not available when busy

Post by GevinKe »

sukanm wrote: 01 Oct 2025, 20:20
Hello, we have optimized this issue, but you need to first upgrade your system to the latest version, TOS 6.0. Below are the operation instructions for the system upgrade:
viewtopic.php?t=6984
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sukanm
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Re: [Help] NAS not available when busy

Post by sukanm »

Where can I find the BIOS level in TOS 4.2.44-2203011626 ?
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GevinKe
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Re: [Help] NAS not available when busy

Post by GevinKe »

sukanm wrote: 02 Oct 2025, 15:09
Hello, you can check the BIOS version through the following path:
ControlPanel > GeneralSettings > System
Image
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sukanm
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Re: [Help] NAS not available when busy

Post by sukanm »

I don't see that screen in in TOS4. How else can I see this? I want to check before I start upgrading my TOS version
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GevinKe
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Re: [Help] NAS not available when busy

Post by GevinKe »

sukanm wrote: 03 Oct 2025, 17:09
We sincerely apologize for the oversight and for not noticing your TOS version earlier. The BIOS version display feature is indeed not available in TOS 4.

You can check the BIOS version by following these steps:

1. Connect a monitor and keyboard to your TNAS device.

2. Restart the device.

3. During the power-on self-test (POST) process, press the Del or Esc key to enter the BIOS main interface.

4. You can then view the current BIOS version information on that screen.

Image
To contact our team, please send email to following addresses, remember to replace (at) with @:

Technical team: support(at)terra-master.com(for technical support)
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TMzethar
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Re: [Help] NAS not available when busy

Post by TMzethar »

You can also collect and download the system report zip file here, extract it, and view the BIOS version from device.txt within it.
TOS Desktop > Technical Support > Report Issues
Image
To contact our team, please send email to following addresses, remember to replace (at) with @:
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sukanm
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Re: [Help] NAS not available when busy

Post by sukanm »

I'm looking here to see the size of the free space on the system partition, but this item does not exist in my version of TOS - where should I find this information?

To check the free space of your system partition,
Go to "TOS > Control panel > System Info > Overview", and check free space from the item of "/" .
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