Thursday, February 25, 2010

How to move the NTP time server role to new domain controller (Windows Server 2008 R2)

There's alot of confusion for this.

Should NOT use net time commands.


On the old domain controller, run the following at command prompt
w32tm /config /syncfromflags:domhier /reliable:no /update
net stop w32time && net start w32time

On the new domain controller, run the following at command prompt
w32tm /config /manualpeerlist:time.windows.com /syncfromflags:manual /reliable:yes /update
net stop w32time && net start w32time

Wednesday, October 7, 2009

3rd Party tools for Virtualized Environments

  1. ToutVirtual's VirtualIQ Professional "...provides simple, easy-to-use actionable information about your dynamic virtualization environment. Use contextual drill-downs to get additional information on an as needed basis. VirtualIQ Pro uses automated methods to generate auto-correlated visibility into your dynamic virtual infrastructure..."

OpenFiler as an ESX iSCSI target

Pretty much decided that this is the best platform.
(Cheap/Free/Opensource iSCSI target devices for VMware ESX/ESXi)
  1. It's faster than FreeNAS, FreeNAS iSCSI target is a file mounted on a SMB share (additional layer)
  2. Does not have the limitations of StarWind free
Objectives:
  • Reasonably fast access for file server use (VMware ESXi VM)
  • Multi-volume replication for data redundancy
  • Cheap 3rd Tier Storage for enterprise environment

Nexenta as an ESX iSCSI target

  1. Possibly working but kludgy if multiple targets are required.
  2. Running ZFS over iSCSI as a VMware vmfs store - Ubiquitous Talk


Logical Volume Manager (LVM)

Need to deploy an opensource or free solution for 3rd tier iSCSI SAN for use with vSphere (VMware, ESX, ESXi) storage.
Woah! 
  • "...I was advised by many people who had lots of Linux experience to never use LVM, as I would have trouble transferring files from an old slave drive to a new install on a new master drive..." - borgward (I'm wonder why?)

Cheap/Free/Opensource iSCSI target devices for VMware ESX/ESXi

Candidates

  1. Openfiler (Redhat, Fedora Core)
  2. FreeNAS (FreeBSD)
  3. Nexenta (OpenSolaris, Ubuntu hybrid?); Homedownload
  4. StarWind (Windows iSCSI target plug-in, feature-limited free edition available)
Comparisons, Reviews, Versus, Actual Implementations

Recover/Change Lost Admin Password on Windows 2003/2008 Domain (Active Directory)

http://www.petri.co.il/reset_domain_admin_password_in_windows_server_2003_ad.htm

"...

Requirements
  1. Local access to the Domain Controller (DC).
  2. The Local Administrator password.
  3. Two tools provided by Microsoft in their Resource Kit: SRVANY and INSTSRV
..."