Query on DFS namespace

Question

We have a DFS namespace consisting 4 virtual servers running window server 2012  as shown below.
The 4 servers are located in 2 different AD site, with  2 server running in AD site 1 and another 2 servers running in AD Site 2
AD Site 1
AD Site 2
Site1_fs1
Site1_fs2
Site2_fs1
Site2_fs2
The referral list order is as follows:
Site1_fs2 (first among all targets)
Site2_fs2 (first among targets  of equal cost)
PS C:\EDIPortal\Scripts> .\dfsutil /pktinfo
3 entries...
Entry: \myNamespace.com\EDIPortal
ShortEntry: \myNamespace.com\EDIPortal
Expires in 188 seconds
UseCount: 95 Type:0x81 ( REFERRAL_SVC DFS )
   0:[\SITE1_FS1\EDIPortal] AccessStatus:
0xc00000be ( TARGETSET )
   1:[\SITE1_FS2\EDIPortal] AccessStatus: 0 ( ACTIVE TARGETSET )
   2:[\SITE2_FS1\EDIPortal] ( TARGETSET )
   3:[\SITE2_FS2\EDIPortal] ( TARGETSET )
Entry: \myNamespace.com\Public
ShortEntry: \myNamespace.com\Public
Expires in 226 seconds
UseCount: 0 Type:0x81 ( REFERRAL_SVC DFS )
   0:[\SITE1_FS2\Public] AccessStatus: 0 ( ACTIVE TARGETSET )
   1:[\SITE1_FS1\Public] AccessStatus:
0xc00000be ( TARGETSET )
   2:[\SITE2_FS2\Public] ( TARGETSET )
   3:[\SITE2_FS1\Public] ( TARGETSET )
Entry: \MYNAMESPACE.COM\sysvol
ShortEntry: \MYNAMESPACE.COM\sysvol
Expires in 0 seconds
UseCount: 0 Type:0x1 ( DFS )
   0:[\SITE1_DC1.MYNAMESPACE.COM\sysvol] ( TARGETSET )
   1:[\SITE1_DC2.MYNAMESPACE.COM\sysvol] AccessStatus: 0 ( ACTIVE )
   2:[\SITE2_DC2.MYNAMESPACE.COM\sysvol] ( TARGETSET )
   3:[\SITE2_DC1.MYNAMESPACE.COM\sysvol] ( TARGETSET )
Dfsutil Output from  Site1_bzt1b
Base on the above information, we would like find out
From the above dfsutil info, one of the node,
SITE1_FS1, is indicating “AccessStatus:
0xc00000be ( TARGETSET )” . What does this access code meant ? Will it have any impact on the DFS performance ?
If all the DFS nodes (Site1_fs1 and Site1_fs2) in AD site 1 goes down, will DFS clients be automatically route to the DFS nodes residing in AD SITE2
Should the Site1_fs2,  goes down, and  Site1_fs1 is still working, how can we force DFS clients to target DFS nodes residing in AD SITE2 when it access the DFS namespace without shutting down Site1_fs1

Answer 1

Hi,
1. oxc00000be means a network connection issue - It seems that the client you run dfsutil.exe failed to connect your site1_fs1 server. Check if any network connection issue.
2. Yes. As you can see, file servers in site2 are also listed in referral list - it will test these referral targets in order. 
3. You do not need to shutdown site1_fs1 but you should disable it in DFS Namespace as a referral target, so that it will not occur in referral list provided to users who trying to access it.
Note: Referral list will not be updated immediately. So clients will still trying to access a previous target until local cache is cleared. 
If you have any feedback on our support, please send to [email protected]