Replacing the failed drive in QNAP

September 30, 2017

My QNAP storage got a failed drive (drive 1 to be specific). I pulled it out, inserted a new one and… nothing happened. On the web console it was showing RAID 5 Disk Volume with only drives 2, 3 and 4. The volume had “degraded” status and the Action button was greyed out. Here’s the solution:

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Error 1605: The specified product key is not valid for the target edition

September 19, 2017

Unfortunately, Windows Server 2008 R2 Standard Edition has limitation of 32GB of RAM. Too bad, if more memory is needed. When I have run into this issue, I have decided to upgrade OS to Enterprise Edition. We have VLK license that supports both Editions, so I did not expect any issues with this.

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Cannot copy files during in-place upgrade to Windows 2003

August 1, 2017

It’s hard to believe but I have recently needed to execute the in-place upgrade from Windows 2000 to Windows 2003. Nothing special, but in the middle of the copy process the installer threw out the error:

Setup Cannot Copy the File Cmprops.dl_

I could see the file on CD, but could not copy it. OK, I ignored the message and immediately got another one about the next file. Well, the setup was cancelled.

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Robocopy Detects Files as Modified

July 18, 2017

From Windows 2008 to Windows 2012 the robocopy utility has been changed. Now it detects all files an “modified”.

I use robocopy to bring data from remote office to the centralized file server and back them up further. I’m not sure if robocopy actually copies files or just changes some attributes, but NetBackup sees the files as new and back up all of them even during incremental backup.

After battling the issue on my own I have opened a case with Microsoft. Together with MS engineer we have found two potential solutions

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MAC is very slow accessing a file storage

March 13, 2017

We faced pretty interesting issue: our MAC computers were very slow accessing the files on a file storage. It took 2 to 5 minutes just to list the folder content not even mentioning about copying the files. At the same time all Windows systems in the same subnet were working absolutely fine.

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Matching the ESX and storage LUNs

February 23, 2017

It has been always a problem to match LUNs on ESX to LUNs on a storage. Eventually I wrote a short script to make this work way easier

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Windows Firewall terminates with Access Denied error

February 20, 2017

Honestly speaking I do not know when exactly it happened and why, but one day I found out that the Windows Firewall service on my computer was stopped. Not a big deal, I tried to start it up and got the Access Denied error. Read the rest of this entry »