Author Topic: How do you turn the Rigol MSO5000 series off?  (Read 300 times)

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Offline bensanderson

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How do you turn the Rigol MSO5000 series off?
« on: July 10, 2020, 08:40:55 pm »
Hi, the question might seem odd to you but how do you turn this thing off? The switch cuts off power which feels wrong. Is there a hidden menu or something to power it off as you do with your computer?

Thanks.
 

Offline thm_w

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Re: How do you turn the Rigol MSO5000 series off?
« Reply #1 on: July 10, 2020, 09:44:17 pm »
Thats right, hard power switch.

They had soft power on some devices (DS2000, DG1022). But now they've changed everything to mains switches (MSO5000, DG800, DP832), which I like.

I haven't heard of any corruption issues with MSO5000, so hard switch is fine if done right.
However, I've seen it done wrong, causing many issues. But in that case the device was writing regularly to the NAND, I don't believe MSO would need to do that.
 
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Offline tv84

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Re: How do you turn the Rigol MSO5000 series off?
« Reply #2 on: July 10, 2020, 10:06:07 pm »
The recent Rigol's MSO NAND architecture is very resilient. It's very hard to brick.
 
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Offline delfinom

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Re: How do you turn the Rigol MSO5000 series off?
« Reply #3 on: July 11, 2020, 12:56:58 am »
Hi, the question might seem odd to you but how do you turn this thing off? The switch cuts off power which feels wrong. Is there a hidden menu or something to power it off as you do with your computer?

Thanks.

It's closer to a micro than it is your computer. Chunks of its flash are read only and the application isn't writing itself nor the operating system. The worst case is you lose some data if you storing it internally but that parts that matter are fine. Theres an assortment of Linux file systems designed for this kind of abuse.
 
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Offline oliv3r

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Re: How do you turn the Rigol MSO5000 series off?
« Reply #4 on: August 12, 2020, 07:02:17 pm »
Thats right, hard power switch.

They had soft power on some devices (DS2000, DG1022). But now they've changed everything to mains switches (MSO5000, DG800, DP832), which I like.

I haven't heard of any corruption issues with MSO5000, so hard switch is fine if done right.
However, I've seen it done wrong, causing many issues. But in that case the device was writing regularly to the NAND, I don't believe MSO would need to do that.

Normally, this is bad for filesystems, for electronics, it does not matter. In ye old days, harddisks used to 'park' their heads just before shutdown, but I think these days, they do this even without power (magnets and springs? parked by default?)

The problem exists really only for filesystems as you may have open files, be half-way through a write to storage and them BAM, power gone, corrupted file system.

The recent Rigol's MSO NAND architecture is very resilient. It's very hard to brick.
Can you explain what you mean here?

They use 'standard' MLC chips with standard drivers, nothing resilient there. They do use a 'read-only' filesystem with few writes, which is ok, but they still allow writes to the filesystem (good for us, but really bad for the device). They should have used squashfs with an overlay or something to be more robust :)
 

Offline tv84

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Re: How do you turn the Rigol MSO5000 series off?
« Reply #5 on: August 12, 2020, 07:13:15 pm »
Can you explain what you mean here?

You have to deliberately ruin the bootloader to not being able to reload the NAND. And that seems to be accessible only via open case.
 


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