On 27/12/2021 13:40, Michael wrote:
On Monday, 27 December 2021 11:32:39 GMT Wols Lists wrote:
On 27/12/2021 11:07, Jacques Montier wrote:
Well, i don't know if my partitions are aligned or mis-aligned... How
could i get it ?
fdisk would have spewed a bunch of warnings. So you're okay.
I'm not sure of the details, but it's the classic "off by one" problem -
if there's a mismatch between the kernel block size and the disk block
size any writes required doing a read-update-write cycle which of course
knackered performance. I had that hit a while back.
But seeing as fdisk isn't moaning, that isn't the problem ...
Cheers,
Wol
I also thought of misaligned boundaries when I first saw the error, but the
mention of Seagate by the OP pointed me to another edge case which crept up
with zstd compression on ZFS. I'm mentioning it here in case it is relevant:
https://livelace.ru/posts/2021/Jul/19/unaligned-write-command/
that might be of interest to me ... I'm getting system lockups but it's
not an SSD. I've got two IronWolves and a Barracuda.
But I notice the OP has a Barra*C*uda. Note the different spelling.
That's a shingled drive I believe, which shouldn't make a lot of
difference in light usage, but you don't want to hammer it!
Cheers,
Wol
