Category Archives: Windows

Sharing Vialations within SYSVOL

I recently had an issue with sharing violations benig reported by Ultra Sound with issues within my sysvol replica set. I had a look at the tech net article on this problem (kb822300) but it did not help with the problem I was having as when I installed the surgested hotfix the files that were in a locked state were no loged in the event log as advertised. I decided to use the old fashond way to fix this.

First I ran:

ntfrsutl inlog > c:\sometextfile.txt

This creates a list of the items that are being inbound replicated on the problem server. I went through the file looking for the line IBCO_INSTALL_RETRY as described in the KB but it did not find it. Then I decided to go through the file manually reading the hole thing. I found that I had a slight variation on the KB article on some items I had the files marked with IBCO_DEL_RETRY and IBCO_RENAME_RETRY. I then ran the GUID’s for these files through the following command to find out what they were.

ntdfsutl idtable {GUID} > c:\someothertextfile.txt

This relieved that some folders that had been deleted would not replicate off the server and also a file that had been renamed would not replicate the change. I found that I had a permission issue with these folders and files and was able to fix it.

Designing an AD sites and services structure in an MPLS network

So I have been looking into designing an AD replication structure for a network which is designed around all sites connecting into a managed MPLS network. So really all sites just connect to the MPLS cloud and data comes out the other end the routing of the cloud was not under my control. All the sources I have found on the net talk about sites being linked to other sites via leased lines and to map your AD design to the network design. This doesn’t really work in an MPLS network as all sites are connected to each other. So in this situation I believe that link cost can be treated a little differently.

First I decided to have two types of links core links with a cost of 10 and default site links with a cost of 100. Now I decided to put all my core sites (HQ’s and sites with large user populations) in to one site link called the hub. It should be noted that the KCC will fully mesh all sites that are in one link so if you find you are going to have alot of core hub sites you may want to construct the mesh manually by creating individual site links for the core. I would say more that 5 core sites probably requires manual link creation.

Next you need to create site links for all of your other sites. It is recommended to only have 2 sites in a link (apart from the core) this means that you can have full control of your replication paths. If you require backup links you can add these using a link cost of say 200. I decided to have sites that connected to the same MPLS core networks link together. This means that your replication traffic will only traverse the network via the core hub sites and not all the other sites. This cuts down on unnecessary bandwidth usage.

You should have no more than default satellite sites connected to one hub site. If you do you ether need to make sure the hub site has the resources in bandwidth and server performance to take the load or create another hub site and move some sites across to the new site.

You will also need to decide on replication intervals and schedules. This can be decided by how often you make changes and how quickly you need them to replicate.

To monitor your replication system I would recomend installing Ultrasound from Microsoft it is free and will monitor and debug any issues you might get in the future.

RIP Pandora hello Last.FM

Last FM is the well not new but now legal play what you want internet radio station. And it has its own client so you can play outside of the browser. This is a feature I have always wanted from Pandora. On top of that the client comes in several flavors Windows Apple and Linux and if you use a Debian derivative distro you can install and maintain via apt. Very impressive.

Dual Booting RAID0 Windows with Ubuntu

There is a bit of confusion out there on how to dual boot your system if you are using RAID 0 (software raid that comes with most motherboards nower days) and a Linux distribution that is on a single disk.

I mainly use windows for gaming and want the performance of my raid disks in windows. So here is what you need to do. Continue reading Dual Booting RAID0 Windows with Ubuntu

Updating Firefox and Thunderbird in Vista

Here is a little well problem I have come across in Vista. I really like the mail and web apps from Mozilla (Firefox and Thunderbird) especially as they keep them selves up to date with there own on-line update system. Only in vista they have kept telling me I need to update and when I go through the motions it doesn’t update??

This is because the software needs to run with admin rights to perform the update. It does not check however when doing an on-line update or try to gain the elevated rights. To make it install for the time being you need to right click on a short cut to the app or the exe itself and select to run as administrator. Problem solved until Mozilla get Vista compliant.