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Slow loading of shared DLL files

December 7, 2012, 12:57 am
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We have built a system with a Windows Server Standard 2012 as the host and two Windows 7 as the clients connected on a gigabit TCP/IP network.

On the host, a 64-bit MFC-based executable (app) and some small-size dependent DLL files are located and shared to Everyone with the full control right. The app can be run either on the host or on the client.

When the app is run the first time on any of the clients, it starts up quickly/normally  - Taking ~1 second - with all the DLL files being loaded quickly.

However, the next run of the app, either on the host or on the other client, takes 3~4 min to start up. Process Explorer showed that each DLL file loading took 30~40 seconds.

It was also found that during the slow start up, if the first client is shut down, both the ongoing and the rest of the DLL loading finished quickly giving a sudden start up of the app.

BTW, the slow start up has never been seen on an old system with Server 2003 (host) and XP (clients).

Anyone with similar experience?
What would be the possible causes?
How to fix it?

Thanks a lot in advance.

Jeff

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Failed to create default schedule creating shadow copies windows 2012

December 6, 2012, 11:37 pm
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Hi There,

When i want to enable the default schedule of shadow copies i get this error

Error 0x80070005: Access is denied

greets Bas

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Users across the Atlantic get sporadic file in use by 'another user' error when opening files.

November 6, 2012, 9:04 am
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I have a scenario where Users in Ireland accessing files in a share over a VPN to upstate NY get sporadic file in use by 'another user' error when opening files.  They have DFS in place for replicating files from the original location in upstate NY to a file server in NYC.  They are also using the Master Control application.  Neiter of these seem to be coming into play and the files they are opening we are sure no other user is using them at the time of the error. For  some people if they Right-Click on the file and select OPEN it works, but only after a couple minutes.  Then they will get another popup that asks them if they want write or read only priviledges.  We restart the peerlocksvc service every morning.

Any ideas about how to configure a better scenario for these users?

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Windows Server 2012 NFS server passwd sample

December 7, 2012, 8:11 am
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Does anyone have a sample passwd file they use for identity mapping?

I placed a passwd file in C:\Windows\System32\Drivers\etc with the following contents:

root:x:0:0:root:/root:/bin/bash

On reboot, Windows did not accept the file, because in the event log under Applications and Services\Microsoft\Windows\ServericsForNFS-Server\IdentityMapping I get a message warning that NFS file access is impaired:

Server for NFS is not configured for either Active Directory Lookup or User Name Mapping.

Without either Active Directory Lookup or User Name Mapping configured for the server, or Unmapped UNIX User Access configured on all shares, Server for NFS cannot grant file access to users.

Configure Server for NFS for either Active Directory Lookup or User Name Mapping using the Nfsadmin command-line tool, or Unmapped UNIX User Access using the Nfsshare command-line tool.

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Need help with DFS using 3 DC's, which DC manages root domain namespace?

December 7, 2012, 9:42 am
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Ok so i'm fairly new to this organization and i'm trying to implement DFS. Here is the current setup:

DC01 -> Main DC / DFS Namespace+Replication (Installed by default for SYSVOL/NETLOGON)

DC02 -> Secondary DC / NO DFS

DC03 - > DFS Namespace (Installed by me to create DEPTS\HOME\PUBLIC etc,.)

When I go to domain.local all I see is NETLOGON and SYSVOL, so how do I get the namespaces on DC03 to show up? I only see them when I navigate to to \\DC03, so is it using DC01 by default?

Thanks

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Backup My Documents on Client Machine (robocopy and xcopy access denied)

December 7, 2012, 10:48 am
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I have roaming profiles set up on our network.  One day a user logged in and all of his files were gone (including the ones on the server).  Also, unbeknownced to me his roaming profile was not getting backed up.  

My guess is the GPO saw a blank folder and just wiped all his files.

Needless to say, I'd like a local copy of all files on peoples machines (one hidden away from GPO).  I'm trying to copy the "%userprofile%\my documents" folder to "%userprofile%\backup\docs" folder.  

I keep getting access denied.  I can do this with the desktop and the favorites but not the my documents folder.  Any ideas how to keep these backed up on disk somewhere (locally)?

Thanks,
JOe K.
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Deduplication and DFSR

December 7, 2012, 1:16 pm
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I have read that DFSR supports Deduplication, but what would happen if i only installed deduplication on one member of a replication group and not the other members?

Yeah Buddy!

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2K8 DFSR Replication not working

November 29, 2012, 3:19 am
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We moved from 2003 servers to 2008 servers a few months ago, recently we noticed that replication between server1 & server2 is not working, as the initial copy from the primary to the secondary semed ok, but nothing has replicated since. When you run the health diagnostics in DFS it appears to indicate no issue and all is ok, but nothing is actually replicating from 1 to 2.

when i run dfsrsdiag backlog on either server says there's nothing in backlog. I have a feeling it might have never worked since the initail copy, but found another utility which shows me the below, what does this mean? replciation should be one way server1 to server2

UPDATE:

Dfsradmin Membership List /RGname:Rep_group_namef/attr:MemName,RFName,IsPrimary

Both servers show No to Primary, is this absolutely required? as other servsr with DFS shares have this option of no for all mebers but they are replicating OK


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Some questions about storage spaces

December 8, 2012, 1:21 am
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Hi all,

I'm thinking of setting up a storage pool on Windows Server 2012 Essentials, but reading across the internet there are some things I want to (double) check.

My plan is to start with 2 3TB drives (2 way mirroring) and expand afterwards if necessary. My main questions are for when I run out of space.

1) I had hoped when my 2 disks got full, I could just add 1 more disk and let the system take care of the rest, but I read that's not the case and I'll have to add 2 disks instead of 1 ?

2) Let's say I do that and I have added 2 disks after a while (resulting in 4 disks in total). The next time I run out of space will I be able to just add 2 more or will I then have to add 4 more ? (so from 4 to 6 or do I have to go from 4 to 8 disks)
I would have assumed 2, but this text here made me doubt:
quote:
"When it comes to mirror spaces, you have to take into account both the number of columns and the number of data copies. For example, a two-way mirror created with four physical disks would look like Figure 10. NumberOfDataCopies equals 2, and NumberOfColumns equals 2. The number of disks needed to extend this virtual disk can be found using the following formula:
NumberOfDataCopies * NumberOfColumns

2 * 2 = 4"

However I would be starting for 2 disks originally, so maybe it's not an issue and I can add 2 disks the second time I expand (from 4 to 6 disks) ?

3) Let's say I want to replace an existing pair of disks with bigger ones (for example the 2 3TB disks). Can I then just remove 1 3TB disk and replace it with a 4TB disk, wait for the pool to synchronize to the next disk and then pull the second 3TB disk and also replace it with a 4TB disk ? Will that work without issues ?

4) Can I use my storage pool to store my client backups and preferably also server backups ?

Thank you in advance for any advice,

 Jorn


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Windows search is not functioning properly

November 26, 2012, 6:50 am
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I'm having strange results when searching in Windows.

For example i have a textfile called werkplek.txt When i search for werkplek it won't find the file. But when i search for werkple it does find the file.

Same goes for "klankbord". Those are both dutch words. Can anyone maybe explain why this happens? In Outlook 2010 we have the same issues.

Can anyone help me with this one? Thanks in advance.

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users access problem

December 8, 2012, 6:00 am
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Hi every one

I have 2 windows server 2008 R2 as file server in my network and now I have a problem with my users access:

when one of my users opens a file from file servers and at the same time another user opens the same file on file server it doesn't show any error about being read only or another user is working on it or its being opened by another users or some thing like that , bout users can edit the same file at the same time and the latest edits will be save on the file and other edits will be lost

If any one has any solution or experience about this problem please share it with me

thank you

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Has anyone managed to get a 3TB dynamic disk on Windows 2003 Server?

December 8, 2012, 5:29 pm
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I just got a pair of new 3TB disks that I wanted to put on my Windows 2003 server enterprise x64 system, SP2, all updates installed.

When I first tried to convert to dynamic, I got the error "The operation did not complete" as described in this KB article

http://support.microsoft.com/kb/826823

It says there is a patch, but there is not one for x64, just x86 and ia64

I found another technet discussion here:  https://social.technet.microsoft.com/Forums/en-US/winserverfiles/thread/cb62238c-b3d0-4989-b45a-ae6de6701a7b?stoAI=10

However its best suggestion is to use a product from AOMIE, but I tried that and it didn't even recognize the disk.  It also suggests that one needs a better version of diskpart.exe and to try to the 32 bit version.  Anyone have any experience with that?

I also tried creating moving the disk to Windows 7 x64, making it dynamic there, but when I move the disk back to 2K3 it does not recognize it, and goes back to a 2TB partition.  I also saw something about needing a 512 block size for 2K3, but W7 does not allow anything smaller than 1K.

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Robocopy /MOVE switch

August 13, 2012, 3:28 pm
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Hi all,

I have created a script to move home folders using Robocopy, on a Win 2008 R2 64bit server.  All our file servers are Win 2k8 R2 64bit.

The approach I have to move them effectively is as follows:

1)  Create \\FileServerB\ServerB$\User1 (this is the destination)
2)  Set Permissions on the above folder
3)  Run Robocopy \\FileServerA\ServerA$\User1\\FileServerB\ServerB$\User1 /MIR /COPY:DATOU /MOVE /R:1 /W:1 /MT:128 /LOG+MyLog.log

It does a pretty good job in copying the files and folders (and subfolders), however, while I assume the source folder will be deleted, it actually behaves like this:

1)  If the source folder does not have subfolders, itself will be deleted after being copied.
2)  If the source folder contains subfolders, only files will be deleted.  So in the end it leaves the original empty folder structure in the source.

Is this the expected behaviour of the /MOVE switch??   I try not to add anRD \\FileServerA\ServerA$\User1 /s /q statement after that, in case if something goes wrong with that Robocopy instance, the source will not be deleted.

So what is the correct syntax/approach to achieve a clean and "robust" move of folders?


Thanks ahead.

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Restricting users not to save extensionless files

December 9, 2012, 12:53 am
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Hello

Is there any way that i can restrict users not to save extensionless files through FSRM

Regards

Ausaf Ahmad

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Slow iSCSI read speeds

February 8, 2010, 12:00 pm
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Hi all,

I am a little lost with the following issue:

Currently we have a Equallogic SAN array that is feeding iSCSI to our file server cluster (Windows 2008 R2 Ent).  The iSCSI speed is initially fine, using the maximum throughput on read and write.  After a few days or so, the performance drops on the read speed only, to about 30% of the maximum. 

So far I have checked the following:
Array utilisation - This issue occurs regardless of load on the array
Network traffic - Connections are all unsaturated, and have capacity
Disk alignment

The only thing I can see that is related is the disk latency increases by 5-6x when the drop in performance occurs.  I also have found that once the issue starts, if I just attach a raw disk, then the performance is fine on that disk until you add a partition to it.

I have a support call open with Equallogic, but so far the array is performing fine, just appears to happen on our file clusters at the moment.

Any ideas?
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Could DFSR demote to FRS?

December 5, 2012, 8:54 pm
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I'm very confused about DFSR and FRS when it turns to different windows server version.

If I have a DC with FRS, then once it migrated to DFSR, could it demote back to FRS?

If I have a domain in 2003 functional level, once I promote it to 2008 functional level, would the FRS migrate to DFSR automatically? Or should I do the migration manually?

I notice that in my 2008 R2 server(in a domain with 2003 functional level), both DFSR and FRS are started.Is it mean that the DC is using DFSR & FRS at the same time? If not, why are the two services both started?

Besides, I noticed in this wiki page,http://en.wikipedia.org/wiki/File_Replication_Service , it was announced that "In Windows Server 2003 R2 and Windows Server 2008, DFS Replication is available as well as the File Replication Service." 

Does it mean that a 2k3 R2 DC is able to migrate from FRS to DFSR?

But in this blog:http://blogs.technet.com/b/qzaidi/archive/2012/01/16/quickly-explained-migrate-your-sysvol-replication-from-frs-to-dfsr.aspx

It tells that if you want to make a migration, "Your Domain Functional Level (DFL) must be set to Windows Server 2008 or higher i.e. no Windows Server 2003 or older domain controllers". But how could a 2k3 R2 DC keep in a domain with 2k8 domain functional level??????

And there seem to be another question : If requirement of migration is raising domain functional level, then is there any sense of raising domain functional level?(I mean that all of the function upgrade need to post manually although I have raised domain functional level)
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File sharing Clustering

December 3, 2012, 12:08 am
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hi

i have a san and 2 file server

i want to know what is microsoft solution for these servers to work Active/Active in cluster with a shared storage

i read some document about the DFS and network load balancing but i do not understand how can done this

for example if  user1 connect to server 1 and open file.txt from there

and at the same time user2 connect to server 2 and open same file(file.txt) from that server

and both of the users modify the file and save this

what will be happen?does some section of the modified file lost?

i do not want to lost any thing

please help me to select the best solution

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DFS-R One Way - Staging Quota for Read-only receiving member?

December 3, 2012, 8:21 am
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We have multiple servers setup for one-way DFS-R as part of our disaster recovery redundancy (also have daily tape backups as well).

Does the staging quota for the server that is a read-only receiving member need an optimally configured staging quota, or is the default 4GB OK?  We've set our DFS environment up based on the recommended 36-48 largest files dictating the staging quota for the sending member.  However, there's not much documentation out there with regards to an environment where it's a one-way topology...

Thanks in advance,

Karson

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Can't access Re-Writable DFS folders after previously being Read-Only

December 3, 2012, 11:23 pm
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Made some DFS folders Re-Writable after being Read-Only & now can't access DFSRprivate folder on those members.Using a domain admin account. Issue only occurs on member-shares that were read only previously.

Error:access denied

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Unable to remove Power users permissions on Windows folder

December 9, 2012, 11:35 pm
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Hi,

We have a request from client to remove power users and builtin users permissions from 'Windows' and sub directories on Windows 2003 server, but when I try to remove it says 'Access is denied'. I have tried using local admin account and domain admin account with same error for both, please advice...

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