Same deal here on:

Distributor ID: Ubuntu
Description:    Ubuntu 19.04
Release:        19.04
Codename:       disco

Linux amdubuntu 5.0.0-29-generic #31-Ubuntu SMP Thu Sep 12 13:05:32 UTC
2019 x86_64 x86_64 x86_64 GNU/Linux

I'd just like to clarify that Comment #31 has the appropriate syntax for
multiple disks.

I'm not sure how I had this working before but as of the 5.0.0-29-generic 
kernel - if you have multiple entries in your 
/etc/modprobe.d/blacklist-<whateveryoucallit>.conf: 
options usb-storage quirks=0x0bc2:0xab20:u
options usb-storage quirks=0x0bc2:0xab00:u

They will clobber each other, so per the above you only would be
blacklisting 0x0bc2:0xab00:u.

You don't need 0x, if you want to cut down on the syntax a bit, but you do need 
to put them all on the same line:  
/etc/modprobe.d/blacklist-<whateveryoucallit>.conf: 
options usb-storage quirks=0bc2:ab20:u,0bc2:ab00:u,0bc2:3322:u,152d:1561:u

Note: if you have a /etc/modprobe.d/usb3-disk-bug.conf and create your own 
blacklist file make sure you remove the "options usb-storage quirks..." entries 
from usb3-disk-bug.conf to prevent them from clobbering your blacklist file. 
 
Update your initramfs: 
sudo update-initramfs -u

And reboot.

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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1584557

Title:
  Seagate external drive causes SCSI bus resets when UAS enabled

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Seagate STEA1000400 external USB hard disk (USB ID 0bc2:2322) causes
  continuous SCSI bus resets by default. As a workaround, disabling UAS
  causes the device to work fine.

  To disable UAS, I created a file in /etc/modprobe.d with the following 
contents:
  options usb-storage quirks=0bc2:02322:u

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.14
  ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  CrashDB: ubuntu
  Date: Sun May 22 22:02:26 2016
  InstallationDate: Installed on 2012-10-07 (1323 days ago)
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 
(20120822.4)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2016-04-09 (43 days ago)

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