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** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1730852

Title:
  Device hotplugging with MPT SAS cannot work for VMWare ESXi

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  [Impact]
  The hotplugging disk cannot be detected with the simulated MPT SAS 
  device on VMWare ESXi.

  [Fix]
  Author: Hannes Reinecke <h...@suse.de>
  Date:   Thu Aug 24 14:52:43 2017 +0200

  scsi: mptsas: Fixup device hotplug for VMWare ESXi
      
  VMWare ESXi emulates an mptsas HBA, but exposes all drives as
  direct-attached SAS drives.  This it not how the driver originally
  envisioned things; SAS drives were supposed to be connected via an
  expander, and only SATA drives would be direct attached. As such, any 
  hotplug event for direct-attach SAS drives was silently ignored, and 
  the guest failed to detect new drives from within a VMWare ESXi
  environment.

  [Test]
  The patch has been verified based on the Ubuntu kernel v4.4.0-97.120.

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