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Dedup deleted VSS

August 25, 2016, 9:50 pm
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Enabled deduplication for a volume which had 64 Volume Shadow Copies in a different volume.
Shadow Copies were deleted after the first dedup job executed.
Here is what happened.

Aug 25 0:00:00
 Dedup Throughput Optimization had started for 2 hours.

Aug 25 1:24:13 
 EventID 24 (volsnap)
 https://technet.microsoft.com/en-us/library/dd364650(v=ws.10).aspx

Aug 25 1:25:05
 EventID 35 
 https://technet.microsoft.com/en-us/library/cc734558(v=ws.10).aspx

System Configuration is below.
- Windows Server 2012 R2
- disabled Full GC with registry
- Dedup Volume : 588GB
- VSS Volume   : 50GB

            DiskSize  Available   Optimized    
Aug 24 588GB     78.9GB       0%       # Before Dedup
Aug 25 588GB     236GB       31%       # After the 1st Dedup
Aug 26 588GB     338GB       51%       # After the 2nd Dedup

Volume Shadow Copies were not deleted during the 2nd Dedup.
I assume that during the first dedup there were not enough space in the VSS volume.
Since all Shadow copies were deleted during 1st Dedup and there was enough space in VSS volume, the 2nd dedup didn't delete any of them.
Is it unavoidable that Dedup deletes VSS?

It would be appreciated if you could explain it.

Thank you in advance,
Kazuo Ieiri




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File in use when disconnected from wireless/wired network - Network Shared Drive

August 26, 2016, 3:06 am
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Hi,

We're having an issue where we are getting a "file in use" message when disconnected from the network. To replicate the issue, what we have been doing is: 

1) Connect to the wired network with wireless disabled

2) Create a test document

3) Enter some text and save to network share

4) Remove network cable

5) Add additional text

6) Reconnect network cable

7) Try to save file back to network share

Initially clicking on the X brings up the message again do you want to save. Click Yes, and the message comes up again next time you hit the X. Hit No and it loses last change. 

From here we then go back in to the network share, open the file and it comes up with "File in Use. Open in Read-Only". File is open by us (administrator account), and there is NO temp file in the shared folder.

Tried so far:

- Running net config server /autodisconnect:-1 to try and stop it disconnecting the share 

- Checked details pane, preview pane and turned off "show popup description for folder and desktop items"

- Updated Windows

We're trying to replicate on Wired connection as it's more easily replicable than wireless disconnections. Seems to be affecting multiple OS's. Share folder is shared on a Windows 2008 R2 x64 machine.

Is this a known issue or is there something that we can configure to try and prevent it locking out the file after the disconnect? Ideally we want the drop to go unnoticed and provide no disruption to the user unless they try to save during the drop. 

Thank you in advance for comments :)

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Cluster Storage Solution

August 27, 2016, 1:17 am
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Hi there,

I need some advice on the best route to take with my project.  If you are either able to give me points here or link me to a comprehensive guide, maybe including a video that would be great.

I understand the file server clustering model in that you have various nodes and one file server storage using storage spaces.

The solution I am looking for is this:

2 storage servers (both with Win 2012 Server installed)  to be presented to the failover nodes as one volume.  Also that I am able to do maintenance on one storage server without losing connectivity etc.

I guess this is a storage failover model.  Currently I am running DFS on my file servers but DFS does not support Users Profiles or redirected folders.  Without the expense of a shelf type storage system like Netapp for example.  Can I acheive this with Server 2012?

Many thanks in advance

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VPN and File Server in singe Windows 2012 R2

August 27, 2016, 11:11 am
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Hi,

I have a Windows Server 2012 running file server. I want to setup a VPN into the same server so that I could access the files remotely by connecting with the VPN. Is it possible? How? Please note that I have only one Network Card and it is assigned to the Public IP of my Server.

P.S: I have never tried but I know it could be possible if I had 1 VPN server with 2 NIC and another separate file server locally connected with VPN server.

Thanks,

AdNaN

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Remote access denied for Local Admin

August 27, 2016, 11:53 pm
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Limit SMB for domain logged user only

August 28, 2016, 6:15 am
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Hi.

We want to deploy an SMB sharing on one server which allow only domain logged user to access.

If a user without domain logging want to access, server should deny it without asking for a domain user and password. Any user, has a domain user and password or not, did not login to desktop through it, cannot access to this sharing.

It that possible?

Thanks.

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share and security permission.

August 28, 2016, 8:38 pm
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Hi,

  How to remove the disable User ID form file-server 2012 share and security permission. If they user get resign AD ID will disable then how to remove the Id not manual by going security tab and remove the ad id's.

   

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ReFS on Storage Space - specific operational questions

August 29, 2016, 10:24 am
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I have done a lot of experimenting with storage space (and like them) and am considering ReFS for use on a photo editing workstation where there are lots of rarely used images that I want to protect from long term bit rot.

I am doing this in Windows 10 AU with Powershell.

Some specific questions: 

1) If I set the File Integrity flag for a file, and at some point a checksum discrepancy is found, what specifically occurs?   Does it auto-repair from storage space redundancy?   Does it record this fact anywhere?  How are any failures to repair reported? 

1a) Is there any way to simulate such a failure, easily?   And how and when (and can you force) an integrity check scan?

2) It appears the File Integrity default can be set at format time for a volume.  I cannot find any way to change it on a volume (specifically the default, I can see how to change individual files).  Is there a way to change the default short of re-format?  Is the default doing anything beyond just setting the default for files (i.e. is it doing something more at the volume level)?  

And final more subjective question: 

3) The performance suffers a lot with File Integrity set (on SSD 2x2 mirror).  During initial image uploads and subsequent editing speed is important, later not much so.  My thinking is to disable file integrity as default, but run a brief script that takes any file over a week old (basically when a given shoot has been edited and published), and sets file integrity on it for longer term protection.  Obviously some risk in that interim, but that aside, is there any downside to this approach?   (Specifically to not having the volume itself flagged just individual files?)

Thanks.  

Linwood

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Offline files pointing to an old file server?

August 29, 2016, 11:47 pm
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Hi All,

I have some challenges with offline files. Within my organisation there are a number of laptop operators that utilize offline files, which is normally fine. However we recently changed our File Server and on at least one laptop it looks like the offline files are 'pointing' to the old File Server! 

I figure that I can manually turn off offline files, then later re-enable them, on the affected laptops. My next challenge is to determine which laptops are actually affected, as not all laptops have offline files enabled. Once I have done this I will then need to compare the file shares on both the new and old File Servers.

Any suggestions regarding how to tackle these challenges will be greatly appreciated.

Kind Regards,

Davo


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Why does file operations hangs after deleting folder on large NTFS volume

August 30, 2016, 3:12 am
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There is a computer under Windows Server 2012R2 with 54,5 TB NTFS volume. Volume is almost full and highly fragmented (defrag.exe says that it has 98% fragmented space). It is used for storing video archive and have folder structure: d:\Video\. There are about 4K folders under the Video and each folder contains 100 - 12K files.

When I delete any of that folders there is a very long interval (minutes or tens of minutes) when every WINAPI file function "hangs". They not returns any error they simply doesn't return. After that period of time they finally returns without any error.

I can see in Windows Performance Analyzer that while hanging time there is one CPU-consuming thread in System process. Its stack:

2 [Root]
3   |- ntoskrnl.exe!KiStartSystemThread
4   |    ntoskrnl.exe!PspSystemThreadStartup
5   |    |- ntoskrnl.exe!ExpWorkerThread
6   |    |    |- Ntfs.sys!NtfsCheckpointAllVolumes
7   |    |    |    Ntfs.sys!NtfsForEachVcb
8   |    |    |    Ntfs.sys!NtfsCheckpointAllVolumesWorker
9   |    |    |    Ntfs.sys!NtfsCheckpointVolume
10  |    |    |    Ntfs.sys!NtfsFreeRecentlyDeallocated
11  |    |    |    |- Ntfs.sys!NtfsDeviceIoControl
12  |    |    |    |    |- Ntfs.sys!NtfsCallStorageDriver
13  |    |    |    |    |    ntoskrnl.exe!KeExpandKernelStackAndCalloutInternal
14  |    |    |    |    |    ntoskrnl.exe!KiSwitchKernelStackContinue
15  |    |    |    |    |    ntoskrnl.exe!KySwitchKernelStackCallout
16  |    |    |    |    |    Ntfs.sys!NtfsStorageDriverCallout
17  |    |    |    |    |    volsnap.sys!VolSnapDeviceControl
18  |    |    |    |    |    |- volsnap.sys!VspQueryCopyFreeBitmap
19  |    |    |    |    |    |    |- ntoskrnl.exe!RtlFindNextForwardRunClearCapped

Can anyone help me to understand what's going on? I have full access to the server and can give any additional info.

NTFSInfo output:

NTFS Information Dump V1.01
Copyright (C) 1997 Mark Russinovich
http://www.sysinternals.com

Volume Size
-----------
Volume size            : 57223549 MB
Total sectors          : 117193830399
Total clusters         : 3662307199
Free clusters          : 7644452
Free space             : 119444 MB (0% of drive)

Allocation Size
----------------
Bytes per sector       : 512
Bytes per cluster      : 16384
Bytes per MFT record   : 1024
Clusters per MFT record: 0

MFT Information
---------------
MFT size               : 14959 MB (0% of drive)
MFT start cluster      : 196608
MFT zone clusters      : 3653996704 - 3654008160
MFT zone size          : 179 MB (0% of drive)
MFT mirror start       : 1
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Cannot delete share of folder that has been deleted

August 30, 2016, 3:35 am
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I had a folder shared using server manager file and storage services. I deleted the folder and now cannot delete the share.

I checked in the list of registry shares and it does not exist.


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Problem with folder redirection / indexing.

August 30, 2016, 7:46 am
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Hello,

i migrated some files (around 1,5TB) from 2008 R2 to 2012 R2 with Robocopy. Installed file services, created namespace, verified permissions. Then i tried to redirect user folder to this location, from old one. For new profiles it links just fine - for ones that were linked to previous location, it wont redirect as it says that there are access problems. I cant add it manually to the documents library either - it says the target location is not indexed.

In old configuration we were using offline files, now we want to get rid of this feature. I searched the web for solution, but couldnt find one. Some said to index my share - so i tried. I get errors 7040 (damaged files in index) and 7042 (windows search is being stopped, because problem with indexer occured: the catalog is corrupt). Then it rebuilds from scratch - which process takes HELL LOT OF TIME (30-40hours). Then crashes / ? and starts all over again. Cant find any logs to waht exactly is causing index corrutpion. The same problem is described here: http://www.networksteve.com/forum/topic.php/Windows_Search_indexing_limits/?TopicId=113606&Posts=1

unfortunately without solution. I need a solution for the problem - recreating profiles of over 200 users is not appealing at all, but its the only perspective i see for now.

Clients are Windows 10 10586, soon updated to Anniverasry (but tested it also with anniversary machine, same problem).

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copying from network location

August 30, 2016, 11:37 pm
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  • i have an FTP site like ftp://xxx.xxx.xxx.xxx

    username password for it.

    i had added a network location for this ftp site in "MY COMPUTER"

    and it is accessible correctly and named it as "remote-ftp".



    i need to copy the files from this "remote-ftp" to local drive like d:\newfolder etc through c#.

    when i took cmd prompt and tried copy command like 

    copy "remote-ftp\file1.txt" d:\newfolder\ff.txt

    it said system cannot find file specified.

    i cant create map network drive for ftp site.


    now i need to copy same file "remote-ftp\file1.txt" through c# 

    file.copy( "remote-ftp\file1.txt","d:\dfd.txt")
    I JUST NEED TO COPY file1.txt to local drive d:\
    help me how to do this?

      asked how to copy from File.copy method.

  • i had saved remember password etc from accessing ftp site and added network location in my computer.

    from that network location how to copy it using File.copy

Titoo 11:11 chittur.

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Open files reverting to read only

August 31, 2016, 2:22 am
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Got a problem I am struggling to resolve.

When opening a file from our file server it opens correctly with read/write access. This is confirmed when checking in the "open files" mmc.

After leaving the file open for roughly half a day, it will complain that the file is open as read only when trying to save. The only way to save is to save it under a different name.

Checking under open files it confirms that the same user still has read/write access to the file. If I close the open file through the open files mmc it will then let the user save the file again.

File server is Windows 2012 R2. We are using DFS to access the shares. Only one DFS target is being used, not using DFSR for any of the shares.

Thanks in advance for any help you can give
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Windows stalls when copying reaches 99% or when saving changes to spreadsheets and documents

August 31, 2016, 3:49 am
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I have a virtual Windows Server 2012 R2 Standard which I use as a file server. The users access these files over via a network share on the virtuel server.

I have checked all settings and configurations, but I can't seem to find the reason why [some times] a large file transfer stops at 99% and just .... waits. It can wait for 5 seconds to 2 minutes. Most of the times it finishes, but the result can also be"network error".

Also, when saving changes to a spreadsheet or a document this message remains on the screen for several seconds (up to 15-20 seconds) (the message just says "Saving" in Danish):

Regards,
Allan Kjær
blog href="https://techallan.blogspot.dk/">blog</a>

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Windows Server 2012R2 cluster NFS access denied on RHEL

August 31, 2016, 4:25 am
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Hi All,

This is regarding a file server on w Windows Server 2012r2 cluster with NFS shares set up.

Short description of the configuration used: NFSv4 is used. RHEL clients are accessing the shares. They are granted access through NFS client groups. No server authentication is used. Allow unmapped user by access by UID/GID is set up.

The problem is that RHEL servers are getting random access denied error (mostly when failing the roles/shares between nodes).

After lots of testing and troubleshooting tried, the only thing, I think, that left is that NfsService account is not set up to have permissions to the cluster in the cluster configuration. Not sure if that matters though. But in order to add that account I think I need to reinstall Services for NFS (I assume NfsService does not have permissions on the cluster as it was installed before the cluster was built).

Questions:
1. Should the NfsService account have full control permissions to the cluster, and my that me the cause of the problems described above?
2. If 1. is not relevant, what else can cause the random access denied?

Any suggestions are more that welcome.

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Cannot create new folder since Windows Updates

August 31, 2016, 4:40 am
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I'm heaving troubles creating a new folder since I installed some Windows updates. I browse to the DFS namespace using the following path:

\\contoso.com\data$\myfolder

When I right click inside the folder and select New -> Folder from the Context Menu I see the following error.

"Could not find this item

This is no longer located in <%3 NULL:OpText. Verify the item's location and try again."

The user account has Full Control NTFS & Share permissions to the folder I'm trying to create a new folder in. When I logon to the server itself which is sharing the folder, I see the new folder is getting created but it doesn't show up in the local Windows Explore which is browsing the share, only the error message is shown. When I click "Try Again" a second new folder is created which I can rename successfully. 

This problem occurs since I installed some Windows updates:

KB3151058 
KB3153704 
KB3155784 
KB3156016 
KB3156017 
KB3156019 
KB3156059 
KB3159398 
KB3161561 
KB3161949 
KB3161958 
KB3162343 
KB3164024 
KB3164033 
KB3164035 
KB3164294 
KB3167679 
KB3169704 
KB3170377 
KB3170455 
KB3172727 
KB3172729
KB3173424 
KB3175443 
KB3175887 
KB3177108 
KB3177725 
KB3178034 

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Network location - Ramsomware

August 31, 2016, 8:06 am
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We are using to access shared folders the  map drive option. But, it was infected by ransomware. We want to use network location like an option. Has been it infected by ransomware ?

Does we have other options? We cannot pay for NAS.

Thanks in advance. 

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Windows Search not working in share

August 31, 2016, 9:01 pm
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I have 2 Windows Server 2012 Std. and a number of Windows Server 2008 servers. We have been sharing the drives and providing access to users. recently, we have noticed that Windows search does not work when a share in Server 2012 is accessed from user desktops. however for all windows Server 2008 search in share works great.

I have done the following troubleshooting -

1) Windows Search feature is installed in the servers and service is running as well

2) Search works ok if the drive is accessed from the server console directly, not from share

3) Windows Search works OK if the drive is mapped with admin share ($ share)

4) Issue occurs only in Windows server 2012

Thanks in advance.

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pagefile.sys size increased

September 1, 2016, 4:27 am
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Hi.!

I am using Windows Server 2008 R2 in one of my server and also i'm using Hyper-V on that same server. This server is configured with Intel Xeon E5645 @2.40GHz (2 Processors), 32 GB RAM. but still my pagefile.sys has taken the size on the disk 31.9 GB, and due to that my C:\ is almost full. Kindly help me out of that.

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