We have had a similar problem with 7.5 server and 7.5.3 client. 
While we haven't had the errors we have had severe problems with size
and time for this particular fileset.
We opened a call with Networker and were told that the writer provided
by Microsoft was the culprit.
A full backup of the VSS SYSTEM FILESET is taken every backup
(incremental and full).  This takes a long time and
is (for us) large.  Somewhere between 7 and 9 GB every night.

Our only option was to specify only the drive letters (Not ALL).  But
this doesn't get open files.  They recommend using
a third party tool for that.  It's interesting, other backup solutions
don't seem to have this problem -- that we can tell.

Networker says that it's not their problem and doesn't seem overly
concerned about it (from the two engineers I've been working with).

_____________________________________
"He's no failure. He's not dead yet."
William Lloyd George

-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On
Behalf Of mcshine
Sent: Thursday, August 19, 2010 3:36 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] backing up VSS SYSTEM FILESET taking a very long
time

morning all,

I am currently implementing a new NW data zone, with a number of 2008 R2
clients, an they have all had various problems. 

The first was VSS failing with 'not enough storage', this was resolved
by ading a drive letter to the system reservce partition. However now I
have ~ 90% of my clients failing on the VSS SYSTEM FILESET:\ saveset. I
have similar sysmptoms of a large backup size and slow throughput, but
obviously the repeat failures are my real concern.

The error I get is :
VSS BCD BOOT FILES - ERROR: Could not open dir =
\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy16\boot\
VSS BCD BOOT FILES - Error saving writer VSS BCD BOOT FILES
VSS BCD BOOT FILES - ERROR: Aborting backup of saveset VSS SYSTEM
FILESET: because of the error with writer VSS BCD BOOT FILES.
VSS BCD BOOT FILES - Error saving
7162:save: save of VSS SYSTEM FILESET:\ to <HOST_NAME

I am running with 7.6 both on the clients and the NW servers.

I am starting to chase my tail on this now & not getting anywhere, does
anyone have any explanations/suggestions as to why this happens &
possible resolution ?

ANY help will be much appreciated, thx in advance  :)

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