Removing disk from Array, adding a new one and more


piratx

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1 minute ago, trurl said:

I think you have to remove a device, let the balance complete without that device, then add the new device.

Or you can add the new device, let the balance complete, then remove the device. Something like that.

 

I don't think you can just remove and replace all at once since it needs the contents of all devices in the pool to allow it to rebalance for added or removed devices.

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1 hour ago, piratx said:

It's better to remove the dimms install them to a pc and then after the memtest says its ok put them back on.

No.

 

You want to carry out the test on the machine where the RAM is going to be installed as you are testing not just the dimms but also the ability of the CPU and motherboard memory controller to handle the RAM at the clock speed set for the RAM.

 

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Thank you for letting me know. Well first I need to let data rebuild finish. 

Then I'll deal with the RAM. I've used common ones 

 

Quote

Memory: 32 GiB DDR4 (max. installable capacity 64 GiB)

 G-Skill F4-2666C19-8GIS, 8 GiB DDR4 @ 2666 MT/s 

G-Skill F4-2666C19-8GIS, 8 GiB DDR4 @ 2666 MT/s 

G-Skill F4-2666C19-8GIS, 8 GiB DDR4 @ 2666 MT/s 

G-Skill F4-2666C19-8GIS, 8 GiB DDR4 @ 2666 MT/s

it's not something need to change values on BIOS etc. I hope.. :)

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2 hours ago, piratx said:

first I need to let data rebuild finish. 

Then I'll deal with the RAM

You don't even want to run a computer unless the RAM is trustworthy. Everything goes through RAM, your data, the OS code, everything. If the RAM isn't trustworthy then it would likely affect that data rebuild you are wanting to finish first.

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Then I should go with my backup plan, if you masters say its good. I wont have any issue with 16GB for starters.. So maybe I can memtest those 16GB RAM dimms first and then the other set. All these just to make sure the server will not be off for long :)

 

No? TIA

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The only reason I am not stopping the parity/data rebuild now is cause I made a new config, cause of the change of the cache SSD.

But it will be done in 3-4 hours.

Quote

Estimated finish:3 hours, 56 minutes

Memtest is an option on boot blue Unraid window?

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1 minute ago, piratx said:

Memtest is an option on boot blue Unraid window?

Yes, but that builtin memtest only works if you are booting Legacy and not running ECC RAM. It won't work if you are booting UEFI.

 

You can download the latest memtest and boot it from another flash drive.

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Never used that and unclear from that page if it includes memtest though you would hope something as basic as memtest would be part of that toolkit.

 

Is that the first thing that came up when you googled memtest?

2 minutes ago, JonathanM said:

That is what I get first from google and what I consider the official memtest

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