Back up the file boot on a system running system.

Recently, my server ESXi 5.5 showed an error:

Lost connectivity to the mpx.vmhba32:C0:T0:L0 device support the start file vmfs/devices/disks/mpx.vmhba32:C0:T0:L0 system. As a result, the host configuration changes will not be saved in persistent storage.

To give some basic information:

The server is an HP ProLiant ML350 G6 2 x Xeon E5504 with 72 GB of RAM. I have a P410i Raid Controller with 8 disks (RAID-5 7 with 1 spare part) and an Areca ARC-1220 with 8 disks in RAID-5. The P410i RAID-table is used for Virtual Machines, while the table on the Areca is used for the storage of the largest. I got 5.5 ESXi (downloaded an image on the official site of HP - HP-ESXi-5.5.0-Update3-iso-550.9.3.26) installed on a USB key (Sandisk Extreme USB 3.0 16 GB) places in the internal USB slot on the motherboard.

Nobody near the server at the time that that was the problem. So, I'm sure it's not because someone bumped into the USB or something.

Of course, I looked around to see if anyone has exactly the same problem or knows how to solve it properly. So far, I have not found something I could use. I know now that once started, ESXi is completely loaded into RAM, so I could just plug it into the USB and examine it. I inspected the USB and found no problems when I put it in my office. To be sure I saved the USB while Paragon backup and restore. After you reconnect the server continues to display the error. When I start SSH and search for devices, ""mpx.vmhba32:C0:T0:L0 "does show, but I have no idea of what I can do with it to make sure that the current running configuration gets saved back to this USB and make sure that when the server is restarted, it will load my configuration. "

I hope someone can help or tell me what I am doing wrong.

Thank you

Finally, I had enough time to close all VM and try a few things.

For those interested, it was my job steps to restore my ESXi.

  1. ESXi set in maintenance mode
  2. Download VMware vSphere PowerCLI
  3. Run as administrator
  4. Connect to ESXi (Connect-VIServer-Server 0.0.0.0 - user user - pass pass) - where 0.0.0.0 = ESXi ip, user = user name for ESXi and pass = password for this connection.
  5. Save the current running configuration (Get-VMHost 0.0.0.0 |) Get - VMHostFirmware - BackupConfiguration - DestinationPath "D:\temp\") - where 0.0.0.0 = ip of ESXi, "D:\temp\" = destination for the backup folder (don't forget this folder exists on the PC that you run from)
  6. Stop your ESXi host

Now at this stage, it proved there was nothing wrong with my USB key, for a reason any ESXi do not use it until I rebooted the system, of course the configuration that it charge was outdated, so I restored the configuration for the backup, I just do. It could also be that your USB key (or any other boot drive) is default and you must completely reinstall ESXi. However, after a clean installation, that you can also simply restore the backup configuration. To restore the backup, I used the following steps:

  1. You start ESXi host (make sure it is installed)
  2. Connect to ESXi (Connect-VIServer-Server 0.0.0.0 - user user - pass pass) - where 0.0.0.0 = ESXi ip, user = user name for ESXi and pass = password for this connection.
  3. Restore the backup configuration (Get-VMHost 0.0.0.0 |) Set - VMHostFirmware - restore - Force - SourcePath "D:\temp\configBundle-0.0.0.0.tgz") - where 0.0.0.0 = ip of ESXi, ' D:\temp\configBundle - 0.0.0.0.tgz' = the configuration file (make sure that this file exists on the PC that you run from)
  4. Wait a few seconds, if it does not automatically restart, do it manually
  5. The configuration should now be loaded again, and the missing boot drive error should be gone.

I hope this helps someone else who has the same problem

Tags: VMware

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