In this part I’ve connected the second IR sensor and Light sensor.
As you can see in the video when the light sensor is covered Arduino gives my a sign that it is night time by running Leds from one end and back.
At the moment there is a delay until the lights  starts switching off if during the delay any of the IR sensors are crossed the delay starts counting from the beginning.

While testing I’ve noticed that some Leds instead of dimming just switch off. Reading through Arduino forum I’ve found that apparently Arduino can only to analogWrite() on digital pins 3, 5, 4, 9, 10 and 11. This is what I most liekely will have to live with or maybe get myself  Arduino with ATmega.

Hi Everyone,
This post will be something different compared to the posts on this blog but it is still ralated to IT.

About a year ago I’ve found out about Arduino and really liked what can be done with it and how easy it is to use. So I’ve bought it…. Well needles to say I played around with for day or 2 and forgot about it.
Couple months ago I saw Automatic LED stair lighting posted on YouTube see the video bellow:

Continue reading LED stair lighting based on Arduino, Part 1 →

Last week after rebooting one of the servers was not coming up.
After connecting to it using iLO I’ve found it stuck on boot screen. It was saying Smart Array initializing. This initializing process should take a second and it should find or not find any logical drives and move to the next step.
The problem was fixed by replacing the Cache memory in Smart Array controller. The server would experience exactly the same problem if you try to boot the server without the cache. Well at leas that is the case on BL25 G2 with E200 Smart Array controller.

Here is some interesting problem with RSA ACE server that I’ve encountered.
Symptoms:
1. The servers is restarting automatically. You are able to login but after a minute or sow you get the message with counter ‘System Shutdown:This System is Shutting down. Please save all work in progress and log off. Any unsaved changes will be lost’
The message should tell you that RSA ACE is restarting the server.

2. In Event viewer Application. You should see plenty of ACESERVER 15004 errors.
In systems event log you should see many Service Control Manager 7031 errors.
Under services most Automatic RSA ACE services would not be running and when you try to start RSA ACE/Server authentication engine it would not start.
Continue reading Problems with RSA ACE server →

Here is an error that I’ve seen on couple installations:

SMS Active Directory System Discovery Agent failed to bind to container LDAP://DC=domain,DC=xxx. Error: The server does not support the requested critical extension.
.
Possible cause: The AD container specified earlier might be invalid now. The Domain Controller is inaccessible.
Solution: Please verify that the AD container paths specified are valid. Confirm accessibility of the site server to the Domain Controller to be queried. Continue reading SCCM: SMS_AD_SYSTEM_DISCOVERY_AGENT, Message ID: 5204 →

Here is an error that I’ve got while trying to PXE boot laptop.

Windows failed to start. A recent hardware or software change might be the cause.
File: WINDOWSsystem32DRIVERSiaStor.sys
Status: 0xc000035a
Info: Windows failed to load because a critical systme driver is missing, or corrupt.
Continue reading SCCM: Windows failed to start. Status: 0xc000035a →

I wrote about this event before here: dcom-event-10016 but this time it was bit different.
Even though I was changing the permission for the object in Component services the permissions were reverting back after couple minutes to what they were and it was resulting that the event 10016 was generated again. Apparently after applying some MS update the permissions on some Windows sub folder are changed. Specifically the permissions were changed on ‘%windir%/registration‘ folder(usually c:windowsregistration). Check the permissions of this folder and make sure that System user has full rights after that try changing the permissions on the object in Component services and see if it stays this time.

Here is one of the Event errors that I’ve got on one of the SCCM servers.
Source: DCOM
Type: Error
Event ID: 10016

The application-specific permission settings do not grant Local Launch permission for the COM Server application with CLSID
{A8889E84-14D9-43D0-813A-249BFFE193C2}
to the user domainuseraccount (S-1-5-21-1957994488-1004336348-839522115-9143).  This security permission can be modified using the Component Services administrative tool.

Continue reading DCOM Event 10016 →

OK… I know one week has passed since it was released but anyway it is here http://www.microsoft.com/systemcenter/en/us/configuration-manager/cm-r3.aspx

I’ve found this interesting article about how to make Windows 7 32bit to use as much ram as possible. Even when you have over 4GB.
I’ve tried it on one of the test laptops and it worked. It have not crashed on me but I cannot tell you how stable it is as it is a test laptop. Performance wise it seems to perform more or less  the same but I’ve noticed that the hard drive is used less as the files are cached in RAM. So in theory laptop should be faster.
Use it at your own risk: Windows 7 32-bit with full 4 GB or 8 GB RAM support