Re: FreeBSD 13.2-STABLE can not boot from damaged mirror AND pool stuck in "resilver" state even without new devices.

On 01/07/2024 3:19 pm, Lev Serebryakov wrote:
> On 07.01.2024 22:15, Warner Losh wrote:
> 
>> So, if this is a mirror, then ada0 blank and ada1 with good data, in 
>> theory
>> you should be fine. However, perhaps ZFS is finding that there's an 
>> error from
>> ada1 for real. Does all of ada1 read with a simple dd?
>   Yep, it is read with dd, I've checked it
> 
>> Not sure about the losing devices you described later on.
>> 
>>      > ZFS: i/o error - all block copies unavailable
>>      > ZFS: can't read MOS of pool zroot
>>      >
>>      >
>>      >   To be honest, I thinks there is something else. Because 
>> sequence of events were (sorry, too long, but I think, tht every 
>> detail matters here):
>> 
>> 
>> Yea. There's something that's failing, which zio_read is woefully 
>> under reporting for our diagnostic efforts. And/or something is
>> getting confused by the blank disk and/or the partially resilvered 
>> disk.
> 
>   My theory, that something is confused when one disk is 512/4096 and 
> other is 512/512.
> 
>   I want to check it on VM, but can not find VM that both (1) allows 
> CMS boot and (2) allows to configure logical and physical sector of 
> virtual HDD.
> 
>   bhyve could configure sector sizes, but doesn't support BIOS, and 
> VBox and qemu-system can not emulate sector sizes (or I can not google 
> proper configuration).

When I first saw this, I wonder what ashift is set to on the pool?
-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 214-642-9640                 E-Mail: ler@lerctr.org
US Mail: 5708 Sabbia Dr, Round Rock, TX 78665-2106