Re: batches and serial numbers

[David T-G <davidtg-robot@justpickone.org>]

Wol --

...and then Wols Lists said...
% On 03/12/2022 18:04, David T-G wrote:
% > % It's why my raid is composed of a Seagate Barracuda 3TB (slap wrist, don't
% > % use Barracudas!), 2 x 4TB Seagate Ironwolves, and 1 Toshiba 8TB N300.
% > 
% > These are Tosh X300s, FWIW.  Like 'em so far!
% 
% OUCH !!!
% 
% https://raid.wiki.kernel.org/index.php/Timeout_Mismatch

No, I'm familiar.


% 
% Do the X300s have ERC, and what's the timeout? Barracudas are nice drives, I

Yep and good.

  diskfarm:~ # /usr/local/bin/smartctl-disks-timeout.sh 
  Drive timeouts: sda Y ; sdb Y ; sdc Y ; sdd Y ; sde Y ; sdf 180 ; sdg 180 ; sdh Y ; sdi 180 ; sdj Y ; sdk Y ; sdl 180 ; sdm Y ; 

I'll append my little enhancement of your script after my sig in case you
find the tweaks interesting.


% like 'em, but they're not good in raid. And the BarraCudas even less so!
% I've got a nasty feeling your X300s are the same!

They have been good to me so far.  I was originally going to get N300s,
but I couldn't at the time, and the X300s read as the same for everything
I could find.  Does your N300 have ERC with a short timeout enabled by
default?


% 
% I said it's easy to get slices kicked out due to misconfiguration - that's
% exactly what happens with Barracudas, and I suspect your X300s suffer the
% exact same problem ...

Well, perhaps.  I'd love to have been able to pin it down, but I never
saw any errors and, perhaps because it was too late by then, couldn't
track them down with additional help from folks here.


% 
% Read up, and come back if you've got any problems. The fix is that script,
% but it means if anything goes wrong you're going to be cursing "that damn
% slow computer".

*grin*


% 
% Cheers,
% Wol


Thanks again & HANW

:-D
-- 
David T-G
See http://justpickone.org/davidtg/email/
See http://justpickone.org/davidtg/tofu.txt

######################################################################

#!/bin/sh

# set timeouts manually where needed

CRED='^[[31m'
CYLO='^[[33m'
CGRN='^[[32m'
CBLU='^[[34m'
CBLK='^[[0m'

# set the timeouts on the local drives
printf "${CBLU}Drive timeouts${CBLK}: "
for DISK in sda sdb sdc sdd sde sdf sdg sdh	# a-d on mobo ; e-h on card
# do i want to apply this to USB drives that show up? hmmm...
do
  printf "$DISK "
  smartctl -q errorsonly -l scterc,70,70 /dev/$DISK
  if [ 4 -eq $? ]
  then
    echo 180 > /sys/block/$DISK/device/timeout
    printf "${CYLO}180"
  else
    printf "${CGRN}Y"
  fi
  printf "${CBLK} ; "
done
echo ''