Bad Blocks

RouterOS General
1

Hello

How does the mikrotik OS deal with bad blocks.

IE:

Does it upon a fresh intsall of the OS mark the blocks as bad and not ever try and use them?

I have been noticing that bad blocks can cause the antenna to perform poorly when they happen on a board after the OS was installed and the unit placed in the field.

What I am wanting to know is if I have 20 bad blocks is the board toast or will a fresh install avoid those bad blocks.

Obviously if 20 blocks have failed it could be symtomatic of a eventual cascading failure of the memory chip but baring that will Router OS mark them and avoid them?

A second question why does terminal connection allow you to partion the drive and select the active partition but then it will not allow you to install the OS in the partition? What is the point of being able to partition if you can not use the partion you name?

I tried this as I though it might be a way to isolate the bad blocks on the chip.

2

20 bad blocks is a small number and should not affect anything. as soon as RouterOS sees this block as bad (and is increasing the bad block number in resources screen), it will not use it. Basically bad blocks have no effect on RouterOS, what you see could be just a coincidence.

To repair bad blocks and to permanently mark the unrepairable ones, use Netinstall.