Tuesday, May 15, 2012

Error when creating mirrored (RAID 1) drives on Windows 7

"The operation failed to complete because the Disk Management console view is not up-to-date. Refresh the view by using the refresh task. If the problem persists close the Disk Management console, then restart Disk Management or restart the computer."
Shrink the volume then extend it - then add the mirror.

Use CMD to create mirror:

Run CMD (as Administrator)
DISKPART> list disk

  Disk ###  Status      Size     Free     Dyn  Gpt
  --------  ----------  -------  -------  ---  ---
  Disk 0    Online        30 GB      0 B
  Disk 1    Online         8 GB  8189 MB
  Disk 2    Online         8 GB  8189 MB

For the purposes of this tutorial we will be creating a mirrored volume based on a set consisting of disks 1 and 2. The mirrored volume is created by first creating a simple volume on the first disk and then adding a second disk to the mirrored set.
The first volume is created using the create volume command combined with the disk= directive. The size of the volume may also be specified using the size= directive. Omission of the size= option will cause diskpart to create volume which occupies all the available space on the designated disk. For example:
DISKPART>create volume simple disk=1
Having created the first volume on disk 1 the next step is to add the mirror volume on disk 2. This is achieved using the add command as follows:

add disk=2

The list volume command may be used to verify the new configuration:

DISKPART> select volume 2
DISKPART> format fs=ntfs label="Mirrored Volume"

  100 percent completed

DiskPart successfully formatted the volume.

Friday, May 11, 2012

Find out which files are taking up all your hard drive space

Best Disk usage tool - file sizer etc.
WinDirStat (http://windirstat.info)
Download latest version for Windows: http://windirstat.info/wds_current_setup.exe

Backup, backup, backup ...

Everyone should adopt strategies to ensure critical information is protected from corruption and loss. 

  • Invest in redundant backup systems
  • Establish a structured backup procedure to make copies of all critical data files, using software compatible with the operating system and applications
  • Periodically test the backups to verify that data, especially databases and other critical files, are being backed up properly
  • Keep at least one verified copy of critical data offsite.
  • Never upgrade any system without a verified backup
  • Use up-to-date hardware and software utilities for data security, such as firewalls and virus protection
  • Scan all incoming data for viruses, including packaged software
  • Use ventilation, fans and/or air conditioning to keep servers at the proper operating temperature
  • Connect systems to an uninterruptible power supply (UPS) to protect against power surges
  • Power down and take extreme caution when moving computers
  • Avoid static discharge when touching or handling the media, especially in excessively dry environments
When disaster strikes:
  • If possible, back up the data immediately
  • Do not use utility software if the drive makes scraping, tapping, clicking or humming sounds
  • Do not power up a device that has obvious physical damage or is making unusual sounds
  • Shut down the computer to avoid further damage to the drive and its data
  • Do not attempt recovery yourself on severely traumatized drives (i.e., turning the computer off and on, using over-the-counter diagnostic tools). This may cause further damage or permanent data loss
  • Call TEK911 to evaluate and help you decide on a course of action.
  • If you’ve lost critical data, DriveSavers recovery service is your best and safest option
  • Never assume data is unrecoverable
  • DriveSavers has successfully recovered data from hundreds of thousands of drives with extreme physical and logical damage.