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2012R2 & ReFS "Access Denied" when proper permissions are set.

September 2, 2015, 12:33 pm
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I am pretty convinced this is a bug (reporting these needs to be better highlighted & streamlined). We have some 1100 shares on various ReFS volumes (All "thin provisioned") ranging from 10TB - 20TB in size (total 6 volumes not including boot volume C: NTFS). What we are seeing is after a period of > 21+ days we start getting errors that "Access is Denied" on people's personal mapped folder (nothing special, usual "username$" shares). Doesn't seem to happen to any group shares (SHARE permissions & ReFS permissions assigned to a group in AD). Always just sporadically to individual shares and two methods fix this (not the same folder ever). A reboot (I had to apply updates anyways) or killing share & permissions, re-assigning to same person and their folder comes back, no client side reboot or anything. The common denominator is the server is always post 21+ days of  uptime. It is a VM (MS HyperV 2012 Host) with 8 cores & 24GB startup ram (expandable to 48GB). All patched up, all optional updates applied (Nic etc.).

Yes all users are AD users, server is joined to domain, we've been doing NT SHARES for sometime, this isn't rocket science. This has to be a bug as the behavior of it not appearing until 21 days would suggest so. Has anyone else seen / heard this or know of a KB article similar to this problem?



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RE: Setting up Quotas

November 26, 2015, 10:20 pm
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hi. are there any good guides on how to get this working 100%. i have just reloaded to server 2012 r2 for our undergrad file server and need to know how to allocate each student 2gb of space (hard quota), email them when its full etc...i have not implemented de-duplication because i want to use hard quotas. i also need some guidance as to how the quota is calculated. i know in the past the volume based quota worked on file ownership. is it still best practice for each student to be the owner of their folder and the files in it?

thanks.

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File Share Windows 2012 R2 & Citrix NetScaler Gateway problem ..

July 7, 2015, 1:44 am
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Hi

We  have a problem with file share bookmark via Citrix NetScaler Gateway ..  e just changed our MS dfs servers to Windows Server 2012 R2 (before Windows Server 2008 r2) ..

Before any changes everything was working fine. Users could open enterprise file share bookmarks, download and upload files. After we changed our file server to Windows Server 2012 R2 uploads are not working anymore. When pressing Upload it gives"Page cannot be displayed".  Users still can open share and download files. Or file is uploaded but with size 0 KB :(

Citrix enviroment is still the same. We have changed firewall rules to new file server. Rules are same as before.

I took back old file server and it was good. I tried with another 2012 server and same problem with that.

I found on CITRIX forum one thread http://discussions.citrix.com/topic/359725-file-share-bookmark-upload-fails/ where is that comment : "This is more a Microsoft issue on the W2K12 server. There is some know problem between 3rd party SMB clients or unix clients. NS is FreeBSD and is using such client to communicate with file shares. You need to look for MS 2012 server patches related to non windows smb clients and file shares."

Any ideas what's wrong with this? or how solve that problem ?

 Thanks

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powershell and fsrm quotas

November 28, 2015, 5:56 am
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Hello

I try to add quota to specific folders

System.IO.Directory]::GetDirectories("c:\users") |
foreach {
New-FsrmAutoQuota -Path "$_\Desktop" -Template:hendaye
New-FsrmAutoQuota -Path "$_\Videos" -Template:hnd-petit
  }
It seems to work only on the sub directories of desktop and videos.
Is there a way to make it works on the directories desktop and videos itself ?
Thanks
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How can I find the size of a domain-based namespace object in Active Directory?

November 28, 2015, 10:23 am
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Hi;

How can I find the size of a domain-based namespace object in Active Directory?

Thanks

Please VOTE as HELPFUL if the post helps you and remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

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expanding hard drive from 20.8g to 64g

November 28, 2015, 10:48 am
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hi brought an asus transformer which was meant to be a 64g hard drive to get it and have only 20.8g on it and having the company I brought it from not want to replace it. Is there a way to make it so that it is a 64g hard drive by any chance and if you can how? thanks
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The IO operation at logical block address # for Disk # was retried

February 20, 2013, 2:52 am
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Hello everyone,

A warning appears in the system log:
===
Log Name:      System
Source:        disk
Date:          2/20/2013 1:00:28 PM
Event ID:      153
Task Category: None
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      STRANGE.aqa.com.ru
Description:
The IO operation at logical block address af7ff for Disk 7 was retried.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="disk" />
    <EventID Qualifiers="32772">153</EventID>
    <Level>3</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2013-02-20T09:00:28.199176700Z" />
    <EventRecordID>12669</EventRecordID>
    <Channel>System</Channel>
    <Computer>STRANGE.aqa.com.ru</Computer>
    <Security />
  </System>
  <EventData>
    <Data>\Device\Harddisk7\DR142</Data>
    <Data>af7ff</Data>
    <Data>7</Data>
    <Binary>0F01040003002C00000000009900048000000000000000000000000000000000000000000000000000020828</Binary>
  </EventData>
</Event>

===
This warning occurred in several seconds after the Windows Server Backup start. Our backup job finishes successfully. That server is in provisioning without a heavy workload, and we have not experienced any problem yet. But we do not want to face any problems due to this error in the production environment.
All disks of the server are managed by the LSI MegaRAID controller, which doesn’t report any errors in the disk system.

it is Windows Server 2012 with the latest updates.

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Can a storage spaces repair / regeneration get in a loop?

November 29, 2015, 3:16 am
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I have a DataON Storage space with a 3 node cluster. Following a disk change there have been 2 or 3 background regeneration tasks going on for several days. The virtual disks are degraded but everything else is OK.

Since I never really looked at these background tasks before I don't know how long they can last for. The % complete does change, and sometimes a new job appears.

CarolChi

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Connect Windows 2012 to iSCSI SAN

November 29, 2015, 10:16 am
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Hi

I am learning Windows 2012 and trying to configure  a failover cluster for a file server.  I need to configure the shared storage.  My lab is setup using VMware workstation.  I have installed 2 Windows 2012 servers and installed the failover cluster roles.  There are 3 virtual NICS on each server.  NIC 1 is on a 192.168.1.0/24 network and connects to the production LAN.  I configured NIC 2  on a 10.1.1.0/24 for the storage. I have an opensource virtual SAN configured on the 10.1.1.0 network too which works fine on my VMware lab.   I tried to configure the iSCSI initiator on the server to connect to target 10.1.1.100 but it failed to connect to the storage. The IP on the servers are 10.1.1.101 and 102.   From node1, I cant ping the node 2 server or the storage.

Am I doing something wrong?   Is this more of a networking issue and can you give guidance please?

Thank you.

S

StevieR

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Server 2012 R2 File Server Stops Responding to SMB Connections

December 11, 2013, 6:14 am
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Hi There,

Massive shot in the dark here but I am struggling with a pretty major issue atm.  We have a production file server that is hosted on the following:

Dell MD 3220i -> iSCSI -> Server 2008 R2 Hyper-v Cluster -> Passthrough Disk -> Server 2012 R2 File Server VM

Essentially 3 times now, roughly a month or so apart.  The file server stops accepting connections.  During this time, the server is perfectly accessible through rdp or with a simple ping.  I can browse the files on the server directly but no-one appears to be able to access the shares over SMB.  A reboot of the server fixes the issue.  

As per a KB article I removed nod antivirus from the server to rule out a conflicting filter mode driver after the second fault.  Sadly yesterday it happened again.

The only relevant errors in the servers log files are:

SMB Server Event ID 551
SMB Session Authentication Failure

Client Name: \\192.168.105.79
Client Address: 192.168.105.79:50774
User Name: HHS\H6-08$
Session ID: 0xFFFFFFFFFFFFFFFF
Status: Insufficient server resources exist to complete the request. (0xC0000205)

Guidance:

You should expect this error when attempting to connect to shares using incorrect credentials.

This error does not always indicate a problem with authorization, but mainly authentication. It is more common with non-Windows clients.

This error can occur when using incorrect usernames and passwords with NTLM, mismatched LmCompatibility settings between client and server, duplicate Kerberos service principal names, incorrect Kerberos ticket-granting service tickets, or Guest accounts without Guest access enabled

and

SMB Server event ID 1020
File system operation has taken longer than expected.

Client Name: \\192.168.105.97
Client Address: 192.168.105.97:49571
User Name: HHS\12J.Champion
Session ID: 0x2C07B40004A5
Share Name: \\*\Subjects
File Name:
Command: 5
Duration (in milliseconds): 176784
Warning Threshold (in milliseconds): 120000

Guidance:

The underlying file system has taken too long to respond to an operation. This typically indicates a problem with the storage and not SMB.

I have checked the underlying disk/iscsi/network hyper-v cluster for any other errors or issues, but as far as I can tell everything is fine. 

Is it possible that something else is left over from the NOD antivirus installation?  

Looking for suggestions on how to troubleshoot this further.

Thanks


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File Server access

November 28, 2015, 10:51 pm
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I have two file server and I want to restrict users, they can't be user more 20GB in it, so how can I do that?
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Get client connections on cifs share from command line equal to Computer Management

November 30, 2015, 5:20 am
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Hi,

I would like to use either command line or Powershell to gather the number of client connections on different shares from our NAS'es, multiple vendors.

Connecting "Computer Management" to a NAS-device, this gives us a nice overview of the connections per share under System Tools -> Shared Folders -> Shares. Is it possible to get the same information using cmd or powershell script?

Thanks! 

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SMB Share permissions from files added by a user of a group

November 30, 2015, 12:02 pm
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Hello,

I have a small environment with a Windows SMB share hosted from a Server 2012 R2. I'm not using an active directory, only local authentication and authorization on the Windows Server. To explain my problem as simple as possible:

1) I have a share which is owned by "Group A". "Group A" has full control over this share and all child folders and objects.

2) User "James" and user "Abby" are both members of "Group A"

3) User "James" creates a file "Test.txt" to the share.

4) User "Abby" can't alter "Test.txt" because she doens't have the permission

Permission on "Test.txt" is now:

- Owned by "James"

- "Group A" is not mentioned in permissions and has no permission over this file

What can I do to let newly created or uploaded files from users as "James" or "Abby" be fully controlled by anyone in "Group A"? I just can't seem to figure it out.

Thanks in advance

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DFS-R for large file shares with 100 million files

November 30, 2015, 5:41 am
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Hi,

we are currently running a NetApp solution with CIFS shares and are planning to moves this to a DFS namespace and DFS-R servers hosted on VM's in vmware. We have a fairly large fileshare structure with around 80 TB and 150.000.000 files, both small and rather large ones. We have an idea to maximize a single Vm to maybe 4 TB of shares, spread over  4 x 1 TB disk to be able to maybe replicate VM's to Azure in the future.

Most files are never updated and some have a very intense activity. We have heard a lot of people expressing worries about running DFS-R for large environments like this and we have a bit of bad experience using DFS-R for Citrix PVS image replication between two site, files being to large (over 200 GB )

We are now building two new datacenters with black fibre and 10 GB connectivity between them, I don't believe DFS-R should be a problem but I could use some advice about what to think about when it comes to configurations other stuff.

Anyone out there with any experience of solutions like this ? What would be a good alternative if DFS-R is not suited for the job ?

Best Regards,

Staffan


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DFS Namespace - RPC server is unavailable, only from one site

November 24, 2015, 3:31 pm
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Hi all,

             2 server DFS-N & R solution for this particular namespace root.

Can map a drive to the namespace and directly to the shares in both sites and it works fine.

If I run dfsult root <rootname> - it comes back fine from the central site, but with "SYSTEM ERROR - The RPC server is unavailable." from the remote site.

Clients get the following errors logged in their system event log

"The DFS Namespaces service failed to initialise the shared folder that hosts the namespace root. shared folder <foldername>"

However, the drive maps fine for clients - but points back to the central server.... if I then force it locally from the GUI to use the local server for referals, it will.

DFSutil /pktinfo shows an access status of 0xc000003a for the local source, and an access status of 0 for the remote (central) share.

So from what I can see - everything appears ok configuration wise - however the clients always choose to use the central (remote) referral instead of the local server. I believe the RPC error has something to do with is - but am happy to be proven wrong.

Any help appreciated.

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SMB2 DFS Create Request message

December 2, 2015, 1:32 am
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Hello,

I hope this is the right forum for the question

I have been looking at at the SMB2 protocol and I have a question about the Create Request message:

https://msdn.microsoft.com/en-us/library/cc246502.aspx

in the spec it states that:

If SMB2_FLAGS_DFS_OPERATIONS is set in the Flags field of the SMB2 header, the file name can be prefixed with 
Distributed File System (DFS) link information that will be removed during DFS name 
normalization as specified in section 3.3.5.9.

I don't understand how dose the server knows if the file name is prefixed or not. Looking at the packets in wireshare I see that the file name isalways prefixed with the DomainName\ShareName when the SMB2_FLAGS_DFS_OPERATIONSis set.

But  the spec only stats that it can be prefixed.

Am I missing something?

Thanks,
Yoni

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Single vs parallel copy/move

December 2, 2015, 2:34 am
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Hello all,

I've a question about speed of copy/move files. I'm using a VM with a fast SANs hosting the virtual disk. Now I move data from E:\ to G:\. I have 3 folders: A, B and C all containing the same kind of data (pictures).

I started with moving Folder A at a speed of ~20MB/s. The underlaying SAN can provide more, but I know that a lot of small files provides more overhead.

But after 5 Minutes I decide to move Folder B and it moves also with ~20MB/s (Folder A still keeps at 20 MB/s). And than I tried to move Folder C wich also moves at ~20MB/s.

So in the end, I had 3 parallel move tasks at a total of 60MB/s. But what happens in the filesystem, that it's not able to move a single folder with 60MB/s?
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NTFS file Sharing with active directory users. problem

December 2, 2015, 3:38 am
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i have a hyper v virtual machine file server, in which one of its physical drives folder is shared. when i share it with "everyone" all the users have access to it no problem at all, BUT when i share it with a specific group (of course security) or user, it doesn't allow access to the share followed by the message ( you don't have permission to access .....) KNOWING that the user has read/write permission and full security access to it and is a member of the domain of course(trust relation ships is valid). what seems to be the problem is it at the level of the SID?
note i also tried on the file server itself to go at //localhost trough RUN knowing that the machine is with the admin user itself couldn't access its own shares followed by the same message. 

Br,
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DFS access based enumeration not working with groups

December 2, 2015, 12:03 pm
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I have DFS on a Windows 2008 R2 servers. I have ABE enabled. On the folder target, I have "Set explicit view permissions." When I configure view permissions and add an individual user account, that user can immediately see that folder target. When I remove the user, they immediately lose view of the target. Perfect behavior so far...

However when I use groups instead of individual user accounts, it does not work at all. A user who is a member of the group cannot see the share. I have tested this every way I can think of. I've even created a new group, added a user, then added the group to DFS ABE permissions, and it doesn't work. Then I add the user who is in that group, and that user can see the folder. I've tried it in the GUI console, and I've tried using Powershell, and it behaves exactly the same every time. It is very consistent.

Everything I read about ABE says you're supposed to be able to use groups to control access. It works perfectly with individual accounts, but not at all with groups. Anyone know what I'm missing here?

Dan

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Can't login with Administrator Password is Blank

December 2, 2015, 11:29 am
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HI,

I have a WD storage running a MS windows storage server 2008 r2, I removed the password of my Admin account.

When trying to login again thru RDP it failing because of "logon failure user account restriction possible reasons are blank passwords not allowed"

Please advise for any solution.

Regards,

 

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