So as an experienced IT Pro you are quite confident: the management terminated an employee, you disabled her account and there is no way she could tamper her Mailbox. Sure? Think twice about it. Or rather read twice about it? Here: http://support.microsoft.com/kb/2612821 And here: http://social.technet.microsoft.com/wiki/contents/articles/exchange-best-practices-for-untrusted-mailbox-users.aspx And now an example of a real life situation:… Continue reading Account disable or password change not enough for email sync termination
Windows Server 8 Storage Enhancements
The recently announced Windows Server 8 brings various enhancements and new features. In fact their number is so large, it probably outshines the AD improvements of Server 2000, the storage improvements (DFS and Storage Management) from 2003 R2 and the probably even the improvements from the 2008-generation (Hyper-V, Branch-Office, Direct Access, NAP, etc.) In… Continue reading Windows Server 8 Storage Enhancements
Configuring iSCSI SAN for Hyper-V: Network Optimization
This article discusses briefly the hardware and software prerequisites and settings for a SAN deployment in Microsoft Hyper-V environment. The certain aspects described here include NIC, switch-port and SAN-interface configurations and considerations about jumbo frames, flow control, VLAN, MPIO and port trunking (bonding) / LACP. The information provided is abridged and rather serves the… Continue reading Configuring iSCSI SAN for Hyper-V: Network Optimization
Configuring iSCSI SAN for Hyper-V: Logical Volumes Provisioning
This article discusses briefly the LUN provisioning, deploying CSV and preparing for Live Migration in Microsoft Hyper-V environment. The prerequisites for a healthy iSCSI Fabric are not listed here, please refer to the document "Configuring iSCSI SAN for Hyper-V: Network Optimization" on this site. Software requirements For Server 2008 and above you will need… Continue reading Configuring iSCSI SAN for Hyper-V: Logical Volumes Provisioning
How to migrate Virtual Machines to a CSV
This article describes the steps required to achieve high availability for virtual machines using Cluster Shared Volume. In addition this scenario presumes that you are already using Hyper-V stand-alone and would like to migrate virtual machines already in use. To achieve this you either use SCVMM or you have to use the export / import… Continue reading How to migrate Virtual Machines to a CSV
Let’s talk iPhone
(Or when the baklava hits the fan) It was so annoying obvious, so daylight clear, that I’m rather surprised to see thousands of doubtful conversational guesses: What’ll be the big news in Cupertino’s Camp? Well obviously enough it will be iPhone 5, but the quarrels and bets about the underlying new technology start from… Continue reading Let’s talk iPhone
Windows 8 Developer Preview from Sysadmin perspective – Part 2 (Desktop)
In our first part we discussed the installation of Windows 8 on a desktop hardware. In this second part we will touch some aspects of the desktop user experience. Still keep in mind, that since the installation was using standard hardware with no touch-screen capabilities, we will not be observing the Metro style, multi touch… Continue reading Windows 8 Developer Preview from Sysadmin perspective – Part 2 (Desktop)
Windows 8 Developer Preview from Sysadmin perspective – Part 1 (Installation)
Recently Microsoft published online a Developer Preview edition from Windows 8 http://msdn.microsoft.com/en-us/windows/apps/br229516. On this site you can download 64-bit and 32-bit installation media ISO files as well as 64-bit edition with developer tools. All versions are for x86 processors only – there is still no build for ARM processors I am aware of, that is… Continue reading Windows 8 Developer Preview from Sysadmin perspective – Part 1 (Installation)
Microsoft Core Services 4.0 Service Pack 2 updates repeatedly
Symptoms: Windows updates pops up with the warning that Microsoft Core Services 4.0 Service Pack 2 updates repeatedly have to be installed. After a successful installation the pop-up windows starts again in a couple of minutes. Repetitive installation or new start does not solve the problem. Cause: The problem is caused by a false… Continue reading Microsoft Core Services 4.0 Service Pack 2 updates repeatedly
Windows client cannot install new updates and the CPU is overloaded
Symptoms: Windows client does not show any new installable updates. After each restart and logon the computer CPU works at 50-90% for about 10 minutes. Under C:\windows\windowsupdates.log the last line include: 2009-02-27 17:13:48:934 1780 2b8 AU # WARNING: Search callback failed, result = 0x80244010 2009-02-27 17:13:48:934 1780 2b8 AU # WARNING: Failed to find… Continue reading Windows client cannot install new updates and the CPU is overloaded