Remove Hidden Devices

Posted by support | Command Line, ESX (VI3), Hardware, Microsoft | Tuesday 15 September 2009 7:29 pm

To get rid of that unwanted driver, device, or service:
1) Open the “Start” menu and choose “Run…”
2) Type in “cmd” (without the quotes) and click “ok”.
3) At the cmd prompt, type in “set devmgr_show_nonpresent_devices=1″ (without the quotes) and press enter. (Note that nothing seems to happen–this is ok. We are actually setting an environment variable which is going to help us to see hidden devices)
4) On the next cmd prompt line, type in “devmgmt.msc” (without the quotes) and press enter. This will launch the Windows Device Manager Console.
5) In the Device Manager Console, from the “View” menu, select “Show Hidden Devices”.

VMWare ESX Server — Extending RAID Arrays Dell MD1000

Posted by support | ESX (VI3), Hardware, Linux, RAID, VMWare | Thursday 20 December 2007 12:53 pm

Overview Summary of Extending RAID Arrays in Dell MD1000

MD1000 Extend RAID Array

If anyone sees errors in my testing please contact me.
support@it-manage.com

RAID Write Back vs Write Through

Posted by support | Hardware, RAID | Thursday 6 December 2007 2:11 pm

To suffer or not to suffer?  That is the questions.

RAID Features
Write Through Cache

With Write Through Cache the data is written to both the cache and drive once the data is retrieved. As the data is written to both places, should the information be required it can be retrieved from the cache for faster access. The downside of this method is that the time to carry out a Write operation is greater the time to do a Write to a non cache device. The total Write time is the time to write to the cache plus the time to Write the disk.

VMWare and Symantec BackupExec

Posted by support | GSX, Hardware, Linux, Microsoft, VMWare | Thursday 13 July 2006 10:15 pm

Backup Exec, Windows 2000, and Red Hat ES3

Six months of Veritas 10 and now Symantec 10d backups. I am running under Linux RHES3 as a host with the guess as Server 2000. Like all backups I had some issue but non related to the virtual server.

RAID Layouts

Posted by support | Hardware, RAID | Thursday 1 June 2006 8:59 am

RAID (Which one is best)
RAID.pdf

Note:
RAID 0 is great for performance but if one drive fails all the data is lost.