Per related question, I was having the same problem on my WHS 2011 Server (same SBS 2008 R2 foundation):
Error: The volume shadow copy operation failed with error 0x800423F0. Check event log, etc. (re: go on a wild goose chase, perhaps??? :)
I chased the event viewer and did what folks were doing to deal with the problem - amazing how many different "fixes" that worked are out there... At any rate, none helped me, to date - mainly, I checked the VSS Writer and it was started, so I came to a full stop.
It occurred to me about 30 minutes ago that this problem started happening after I installed Sharepoint (sharepoint has writers, its own backup facility, etc., so I thought, "HMMMM..."). I disabled Sharepoint (by changing all SP services to "manual" and rebooted) and now, for the first time in about 2-3 weeks, my Server is backing itself up ( at 56% whereas before it would fail within the first 5 minutes). Not sure I've "solved" the problem, but another "nugget" on the diagnosis. Something with which, I can now get some help via E-E.
Not sure where to go from here. Should I be stopping Sharepoint before backup? Seems a bit strange to have to do...
When I type at the elevated command prompt: (get-spserver $env:computername).needsupgrade
I get a message .NeedsUpgrade was unexpected at this time.
So I'm at a loss at what to do at this point.
Ideas?
Dave
0
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Launch an elevated (Run as Administrator) SharePoint 2010 Management shell from start, All Programs, Microsoft SharePoint 2010 Products, SharePoint 2010 Management Shell.
Once the shell opens, type the following command followed by enter:
(get-spserver $env:computername).NeedsUpgrade
Open an Administrative command prompt.
Change directory to C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\BIN
Run PSConfig.exe -cmd upgrade -inplace b2b -force -cmd applicationcontent -install -cmd installfeatures
Ok =- upgrade was 100%. Now, should I reboot? Also, if you can help me remember, what processes should have automatic setting as I set them all to manual/stopped last time to make the backups work.
Interesting. I did a backup manually and it backed up the reserve drive, the operating system drive (no drive letters for either) but drive D: (where server folders reside, it only says "Incomplete". Will check again when it runs at 6.30am to see if I get the same results.... Perhaps I ran out of backup disk space, so I'm formatting that drive and we'll see what the results are in the AM.
http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/SBS_Small_Business_Server/Q_27323414.html?cid=1572#a36891533
resolution was to re-run SP upgrade as per http://blogs.technet.com/b/sbs/archive/2011/07/06/potential-issues-after-installing-sharepoint-foundation-2010-sp1.aspx