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Windows Server 2016 - general disk-I/O L2 caching?

February 2, 2017, 6:09 am
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Backround

In WinSrv 2012 you were forced (in a quite awkward way I must say) to predict what SSD cache sizes you needed and only using "Windows Storage Spaces" (WSP) and when done you were practically stuck with that configuration. And the internal cache management of WSP wasn't even real time since "hot" sectors had to be moved in and out by a background batch job running each night.

Actual requirements

What I'm looking for is a more general and true real time disk L2 caching using for example SSD that is not dependent of WSP thus could be used on top a any kind of drive or disk subsystems. Also, I want to be able to alter cache size and allocate space to different disks "live" i.e. without the need to reboot or deallocate the whole SSD-drive. Nice to have but optional is the ability to change between different cache algorithms like LRU/MRC/ARC etc.

Question:

Has this changed in anyway in WinSrv 2016 and can any of the above needs be implemented? If that’s the case, are there any architecture and design principles lying around somewhere that might describe how?

Thanks in advance "anyone"!
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File folder security question - windows server 2008

February 2, 2017, 6:04 am
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I'm the admin of a windows 2008 server. 

I noticed (in the folder security tab) that a user had access to certain folders on our server that he should not have had access to. I have no idea how he got that access. 

Is there any way to see when he was granted access to those folders and who gave it to him? Or any other information on how this could have occurred. 

Also is there a way to see if that user have viewed or done anything with the files in the folder?

Thanks in advance.

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DFS-R Active Active

February 2, 2017, 5:41 am
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Hello everyone, i am new in this community

I have a query about DFS-R. It is possible to make an Active Active replication from one site o another? Because i will be storing roaming profiles there.

Any help would me appreciate.

Thanks in advance.

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Take Large Volumes and Shrink Them But Keep Under One Share

February 2, 2017, 9:01 am
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My company is running into a few issues with large (and growing) volumes with high-res AV files and folders. Fully virtual environment.

What we'd like to do is:

1. Instead of having 1 20TB volume, we'd like 4x5TB volumes in case if there is corruption or loss, we only have to restore one of those 5TB volumes, not 20TB

2. I've set up DFS, but we cannot view 4 separate volumes in one view under "Media" since that isn't how DFS works.

Is there a way to have multiple drives that are able to view under one share? I've been unable to find anything that fits the bill exactly. I can set up a DFS namespace and everything is under "media", but that's not exactly what I need since it still has to be on a single volume. Not worried about replication.

Thanks!

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How to list domain controllers with type of operating system

May 27, 2015, 5:52 am
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Hi

I have two domains and in one domain I already updated everything to Windows 2012 R2 domain controllers. On second domain I have Windows 2003 servers and need to update them as well. I would like to use dsquery or any other available command to list all domain controllers and type of operating system they are running.

I was able to fire up dsquery and find out domain controllers and which one is global catalog but it will not list operating system. Sure i can go to Active directory users and computers and right click every one of them and find out but it would take some time so I am just wondering whether there is any command that will list domain controllers and type of operating system they are running

Power shell doesnt work since I am on windows 2003 on that second domain

Dalibor Bosic

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most restrictive policy not applying between SMB and NTFS

January 25, 2017, 6:44 am
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Most restrictive policy not applying between SMB and NTFS on a particular share folder. All other folders are setup in the same manor.
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Ricoh Aficio MP C2051 Scan to Folder - Windows Server 2012 Error: Authentication with the destination has failed check settings

October 31, 2012, 1:02 pm
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I have recently upgraded a clients servers to Windows Server 2012 & since doing so have lost the ability to scan to folder.

Both servers are domain controllers and previously on a 2008 domain controller I would have had to make the following change to allow scan to folder:
 Administrative Tools
 Server Manager
 Features
 Group Policy Manager
 Forest: ...
 Default Domain Policy
Computer configuration
 Policies
 Windows Settings
 Security Settings
 Local Policies
 Security Options
 Microsoft Network Server: Digitally Sign Communications (Always)
 - Define This Policy
 - Disabled

However I have applied this to the Windows 2012 server but am still unable to scan, possibly due to added layers of security in server 2012. The error on the scanner is Authentication with the destination has failed check settings.
I have also tried the following at the server:
Policies -> Security Policies
Change Network Security: LAN Manager authentication level to: Send LM & NTLM - Use NTLMv2 session security if negotiated.
Network security: Minimum session security for NTLM SSP based (including secure RPC) clients and uncheck the require 128 bit.
Network security: Minimum session security for NTLM SSP based (including secure RPC) servers and uncheck the require 128 bit
I have created a user account on the server for the ricoh and set this in the settiings of the Ricoh and verified everything is correct.

Are there any other things I have missed?

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dfs and folderredirection

January 24, 2017, 11:09 am
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guys,

am trying to find a decent tutorial that is explaning me how to install dfs and create group policy's for folder redirection. Cant find one that conbines both, anyone who can point me to the right direction?

Second ,when creating the namespace, should i create a namespace for every departmentfolder ? Or should i create a namespace for one general folder and put the department folder in the general  folder?

thanks in advance

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Enabling S2D and Failover Clustering for SoFS

January 13, 2017, 7:37 am
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We are interested in using the S2D for creating a Failover Cluster and deploying the scale out file server.  In our testing, we have 4 plain jane computers running server 2016.  Each machine has 2 HDD @ 500GB each.  I understand that only one disk from each machine will be able to be used for the storage space. We are running into 2 issues. First, the disks are appearing with an "unknown" "media type" attribute. Second, when I run the cluster validation tests I get failed on the unknown attribute type but also a "Cannot Pool Reason" of "Insufficient Capacity". The disks are blank they are online but have no volumes/partitions created.  The drives appear under file and storage services in server manager as a primordial pool and if I add them to storage pools I can fix the "media type" issue, however, when I delete the pool the "media type" attribute is lost. Any help would be appreciated. TIA.



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Large number of open file handles on fileserver (Server 2012R2) after user's rds session has long been terminated through log off

July 18, 2015, 1:44 pm
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Hi,

we do have an rds farm with roaming profiles (not profile disks) consisting of 6 terminal servers ("srvts001" to "srv006" 2012 R2), 2 domain controllers ("srvdc01", "srvdc02" 2012 R2), 1 SQL/Fileserver ("srvsql01" 2012 R2).

Roaming profiles are stored on srvsql01 in share RDS. Oplocks are disabled, directory caching is disabled.

Everything was running without problems for 1 or 2 years. Recently (about 2 weeks ago) users began complaining about being logged on with a temporary profile. Investigation showed a lot of open file handles from previous (no longer existing) sessions on the file server.

E.g. user1 had logged on to rds one day and logged off in the evening (not just disconnected, really logged off) and when he logs in the other day on the rds farm he is logged on with a temporary profile due to the profile service being unable to access the roaming profile as it is (event log) "in use by another process".

Looking at the fileserver's open files we can see that a lot of files of that user profile (and of other users, too!) are shown as open - all with read option and no apparent locks.

When user1 loggs off these locks stay! Manually closing the open files on the file server allows the user to log on to the rds servers normally. Subsequent logging off may or may not create those stale open file handles.

We have no clue as to when these enormous amount of open file handles (we talk about 100s of files per user) happen. It seems to be at random and not hitting every user.

Has anyone ever met a similar problem? Or at least an idea on how to prevent logged off users to still have open files on the file server?

Any answer pointing in the direction of a possible solution or source of this problem is greatly appreciated!

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Windows Server 2012 R2 - File System unable to remove/ list a folder content - 1 Million file +

February 3, 2017, 8:27 am
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Hey there,

right now there is no other way then ask some other technicans concerning the issue just popped up.

Error info:

There is a folder which contains log files of a McAffee Antivirus Management Server.

The McAffee service is writing log files which are not that large at all. May about 1Mb each.

... unfortunately there are +1.000.000 logfiles right now. Just ended the dir indexing after 7 days.

To remove the folder is impossible. Also tried it with a bunch of powershell and CMD commands. There is no error message by the OS even.

At least I just don't want to setup the whole server completely new.

Thanks a lot in advance,

Lukas

#Housten we've got a problem#

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Consolidation of Storage Space

February 4, 2017, 10:11 am
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Hello,

I have a PowerEdge T420 server running Windows server 2008 R2 with all the HW & SW updates to date, however, we changed what we store on the server and thus have several drives on it which are sparsely occupied. We want to CONSOLIDATE all these drives into one large drive or volume. 

Can anyone point me to some links containing the pertinent instructions?

Thanks,

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Server 2016, Storage Replica, Windows Search alternative

February 4, 2017, 3:26 pm
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Hello there

I'm running a small POC for one of my customers with 2 Windows Server 2016.

The main idea is to provide an active-passive File Server Cluster.

The servers are nodes in a stretched Failover Cluster. Both are located at different sites.
Storage Replica is activated and is running fine.
File Server Role is activated and the SR Disks are assigned to it.

Failover works as expected. So far so good. I love the new Storage Replica Feature.

I would like to run this cluster as a normal File Server.
The users are used to the Windows Search feature. On the old File server, they had running the standard Windows Search indexing Service. Worked pretty good for the 3TB of Data. 

I tried to configure Windows Search. But as you might know, Windows Search is not allowed in a Windows Failover Cluster. If you try to start a Windows Failover Cluster Node with this service running, the service will be set to disable. I have no clue how an indexing software should work with SR as the disks are only present to one server node (Source) only.

Now my Question: Is there a way to provide the same windows search functionality for the user without windows search indexing service? Do I have to use a third party software? What are you guys using?

I'm looking forward to hear about your experiences.

Thx for your time

Greetings

Martin


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BitLocker, ReFS, and Storage Spaces

February 5, 2017, 12:04 am
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Hi everyone,

I'm configuring an installation of Windows Server 2016 Essentials. Ideally, I'd like to put into production a Storage Space based on ReFS which is encrypted with BitLocker. Before continuing down this route, I have a few questions:

  1. Has the issue of volume corruption when using the combination of BitLocker and Storage Spaces been resolved?
  2. When creating a mirrored (2 x 3TB) Storage Space based on ReFS, a new and empty volume (i.e. no previous or current data written) uses approximately 43GB of space. Why is this?
  3. When creating a new Storage Space, is the default value the maximum value (without over-provisioning or under-allocating)?

Any clarification will be greatly appreciated. Thanks!

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SOFS Cluster in WS2016

February 5, 2017, 10:06 am
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Hello,

I am currently in the process of setting up a new storage system and as a result of the WS2016 release some questions have popped up.

I could setup the system using my old settings from 2012R2, but after the release of 2016 some new features were added (Storage Spaces Direct) or updated (eg ReFS) and I would like to incorporate the available features if possible.

 

First the current HW:
4x JBOD enclosures (each with 3 HDDs (10K) & 1 SSD = 12 10K + 4 SSD)
2x Windows Server 2016 Server attached to JBOD using mSAS


Both servers are in a "Failover Cluster" and will later on host virtual machines using Hyper-V Cluster, where the storage is located on CSV volumes.

I want to setup a Pool using all JBOD drives using Storage Spaces (not Direct!). The Virtual disk resiliance should be a Two-Way Mirror.

 

Now here are my questions, I hope someone can help me with them:

1. Should I use tiering with the SSDs, because a collegue recommended just using the UsageType "Journal" for the SSDs and the will automatically work as a cache or even just setting the WriteBackCache to a custom size. I always thought that the Jounaling will only work on Parity "Virtual Disks"?


2. Should I use ReFS in this case, or should I stay with NTFS? Is ReFS even supported on CSV? I read that if I decide to use ReFS all access will be in "Redirected Mode" and I cannot leverage DirectIO is that correct. The technet articel about "Supported Scenarios for ReFS" did not provide sufficient information on this matter.

 

3. If I use ReFS will I have "Real-Time Tiering" or is this only in combination with Storage Spaces Direct?

 

I hope someone can help me with these questions as a could not find a satisfactory answer online.

Thanks in advance Paul

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VM Domain Controller VHDX's on CSV tiered virtual disk with Write-Back Cache

February 5, 2017, 11:50 am
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Am I going to see corruption doing this? Is it supported? As soon as I promoted a new VM to a DC I got warned and shut it down just in case. The Tiered CSV virtual disks w/ write-back cache ARE writing through to disk - the SSD tier - right?

born to learn!

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Error 0x8007003B unexpected network error at copying big files on a DFS share

December 2, 2010, 4:20 am
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Hi,

i have a problem with some of my DFS-shares.

The issue i noticed the first time today.

if i copy a big file (> 100mb) on my DFS share (domain-based namespace) i've got the error 0x8007003B unexpected network.

But not alle shares on the same server has the issue.

if i copy the big file direct on the server share (\\servername1\share1) the copying process works without any error's.

 

My server is a Windows Server 2008 Standard x64 and the Client is Windows 7 Prof. x64.

I've tried to copy big files from different operating systems (win 2k3 & win xp) and the were also no problem.

 

can somebody help me?

 

thanks for your help :)

best regards

Michael

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DFSRDIAG says "in sync" but its definitly NOT!

December 12, 2016, 1:59 am
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Hi Community,

I have two Fileservers (one old 2008 R2 Machine) and a new 2012 R2. We've setup a replication-Group and let DFSR perform the initial Sync (Fast Connection in one datacenter). The initial-sync was done in ~ 1 day. When I ran dfsrdiag it says "No Backlog - member <SOURCE> is in sync with partner <DESTINATION> so we switched DFS to the new Fileserver and took the old one in readonly.

Now the users report, that some folders are empty but they see data on the old machine. I verified and they are right! What the hell is going on?! DFSRDIAG still says "in sync" but it isnot. I cannot trust the Microsoft-diagnose-Tools any longer!!!

What can I do to run a manual re-sync?

Regards
Miranda

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Help Eliminating Events Produced From Windows Folders With Default Auditing Enabled

September 15, 2015, 6:25 pm
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I am setting up file server auditing on a Server 2012r2 system for the first time and I had a question about reducing/eliminating the events produced from Windows folders that automatically have auditing defined on them.

Current Setup

I enabled file server auditing by setting Audit File System to Success under Computer Configuration | Policies | Windows Settings | Security Settings | Advanced Audit Configuration | Object Access. 

Behavior

After enabling file system auditing, I noticed that the Security log started to log these 3 events periodically:

Event ID: 4656
Security ID: SYSTEM
Description: A handle to an object was requestedProcess Name: C:\Windows\CCM\CcmExec.exeObject Name: C:\Windows\servicing
Frequency: 3 events every 10 minutes

Event ID: 4656Security ID: SYSTEMDescription: A handle to an object was requestedProcess Name: C:\Windows\System32\rundll32.exeObject Name: C:\Windows\WinSxS\FileMaps\<several subfolders>
Frequency: This event and the event below produces about 650 events within about 1 second about every day.  

Event ID: 4663Security ID: SYSTEMDescription: An attempt was made to access an object
Process Name: C:\Windows\System32\rundll32.exe
Object Name: C:\Windows\WinSxS\FileMaps\<several subfolders>Frequency: This event and the event above produces about 650 events within about 1 second about every day.  

Upon checking theC:\Windows\servicing and C:\Windows\WinSxS\FileMaps folders, I see that they have Auditing enabled by default. 

Questions

  1. Has anyone attempted to remove auditing from the Windows foldersC:\Windows\servicing or C:\Windows\WinSxS\FileMaps?
  2. Is there a cleaner way to not log these default audit defined folders (the auditing I will be doing will be on a separate data volume on the server and not on the C drive)?  Or is the general approach to allow the events to be logged and then use the filter option (or a log management tool) to ignore these entries?

Thanks!

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Storage Replica - Does it replicate folder/file permissions ?

February 6, 2017, 8:12 am
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I'm wondering if Storage replica for Windows 2016 replicates file/folder permissions ? Tried a quick test and it doesn't appear to , trying to get some confirmation if this is expected or if i'm missing something

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