Event ID 157 “Disk # has been surprise removed” – Ntdebugging Blog – Site Home – MSDN Blogs:
http://blogs.msdn.com/b/ntdebugging/archive/2013/12/27/event-id-157-quot-disk-has-been-surprise-removed-quot.aspx?Redirected=true

it’s my removable usb external hard drive I’m using for backup.

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EVENT # 2238
EVENT LOG System
EVENT TYPE Warning
OPCODE Info
SOURCE disk
EVENT ID 157
COMPUTERNAME   SERVER
DATE / TIME   3/27/2014 9:03:40 PM
MESSAGE Disk 5 has been surprise removed.
 
BINARY DATA   0000: 00 00 00 00 02 00 30 00 00 00 00 00 9D 00 04 80
0010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0020: 00 00 00 00 00 00 00 00  

=========

On a recently deployed 2012 R2 system it looks like these warnings were generated during (or immediately after) a “Windows Server Backup”. I noticed that the backups are stored in VHD’s. Also, the disk numbers the error refers to (2 and 3) do not exist when I examine the Disk Manager. I assume this is normal behavior and can be ignored, correct???

[This message may be generated with a VHD is removed.  We are aware of customer feedback regarding this message and it’s applicability for VHDs.]

I’m getting this just as the backup starts.  I think there’s a bug that hasn’t been squashed on.  Anyone else seeing this and what hardware are you running it on?

 

3 Responses to Event ID 157 "Disk # has been surprise removed"

  1. Peter P says:

    I’m seeing on all my Windows Server 2012 R2 Essentials servers.

  2. Bernhard says:

    We getting this error on all our Windows Server 2012 R2 during Backup.

  3. Kevin says:

    I am seeing this error on a just upgraded Server 2012. I upgraded Server 2012 with Hyper-V role to Server 2012 R2 with Hyper-V role. Two of my hosted servers are showing this error before and after the backups from the host server. A third hosted server is showing VSSWriter errors that may also be related. The backups that are created restore just fine on my test hyper-v server so looks like another error to ignore until Microsoft fixes it in 5 years.