Ubuntu HDD idle time

sudo hdparm -S 200 /dev/sda

/dev/sda:
 setting standby to 200 (16 minutes + 40 seconds)

#hdd status 

hdparm -C /dev/sda

#config file

cat /etc/hdparm.conf 

hdparm -B 1 -Y /dev/device
hdparm -B 255 /dev/device

The first hdparm put the device standby immediately. The second one turn off APM, so the disk stay in standby mode till the next disk access.

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Notes for repairing degraded RAID 1

cat /etc/fstab
cat /proc/mdstat
sudo mdadm --query --detail /dev/md127
sudo mdadm /dev/md127 --remove /dev/sda2
sudo mdadm --add /dev/md127 /dev/sda2
watch -n3 cat /proc/mdstat

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RDP to Ubuntu

 sudo apt-get install xrdp

cd home/username/


Vytvorit novy subor s nazvom .xsession
gnome-session --session=ubuntu-2d

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Cena za 1Gbit/s na Slovensku

"Kým v Česku stojí gigabitový okruh v rámci krajiny približne 1000 až 1500 eur mesačne, na Slovensku je to 5000 až 15000 eur mesačne. Navyše kým slovenský ISP za túto cenu dostane linku do nejakého veľkého uzla, odkiaľ to musí ešte často desiatky kilometrov prenášať inými linkami, tak v ČR je možné za tieto ceny dostať často okruhy až do jednotlivých obcí," uvádza ALPI pre DSL.sk.

"Tento stav je spôsobený kartelom medzi vlastníkmi národných optických sietí v SR. Je úplnou iróniou, že zabezpečiť spojenie z Bratislavy do Prahy je lacnejšie ako z Bratislavy do Hlohovca a spojenie z Bratislavy do zahraničia vrátane USA stojí menej ako 10% toho, čo spojenie z Bratislavy do Košíc," uviedol Rybárik. 

zdroj: dls.sk

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Server 2012 Antivirus notes

http://www.win2012workstation.com/tag/antivirus/

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Good informations about Storage sollutions...

http://www.storagereview.com/

http://www.tomshardware.co.uk/forum/265641-14-40tb-server-performance-issue

http://smugtrafficker.com/product-reviews/dataoptic-/

http://www.system68.com/computer/html/lian_li_ex_50_schritt_1.html

http://augmentedtrader.wordpress.com/2012/05/13/10-things-raid/

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NASA - Transcript of "Blackout: The Sun-Earth Connection"

http://sunearth.gsfc.nasa.gov/podcasts/media/Blackout/Blackout_part1.htm
http://sunearth.gsfc.nasa.gov/podcasts/media/Blackout/Blackout_part2.htm
http://sunearth.gsfc.nasa.gov/podcasts/media/Blackout/Blackout_part3.htm
http://sunearth.gsfc.nasa.gov/podcasts/media/Blackout/Blackout_part4.htm

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Playing with VMware?

 I don't have T-shirt, but I have ESXi  :-p

If you testing ESXi on your laptop then good idea is to install it on the USB stick or on SD card. I'm going to install second HDD into to my laptop and save money on energy consumption (compared to regular desktop PC)

One of many nice sollutions for your virtualization server:
http://www.ivobeerens.nl/2011/09/01/vmware-esxi-5-whitebox-supported-motherboard/

Blogs:
http://blogs.vmware.com/vsphere/ - almost every day new interesting informations
http://www.ivobeerens.nl/  (Ivo has some tips for Win2k12 srv installation to VMware workstation)
http://www.ntpro.nl/blog/categories/34-vSphere-5/P2.html


Import VMDK file to ESXi
SSH / console access >  run > vmkfstools -i /source_path/source.vmdk  /destination_path/destination.vmdk

Where to insert license key on ESXi 5.0 patch 1

To license a standalone vSphere Hypervisor host:

1. Log in to the ESX/ESXi host using vSphere Client.
2. Click the Configuration tab.
3. Click Licensed Features under Software.
4. Click Edit under Licensed Features.
5. Select Assign a new license key to this host.
6. Press Enter and enter the license key.
7. Click OK.

Top 10 Free vSphere ESX Tools and Utilities
http://www.kendrickcoleman.com/index.php?/Tech-Blog/top-10-free-vsphere-esx-tools-and-utilities.html

Here is an example of using the local esxcli utility for an ESXi 5.0 host. The patch bundle needs to be uploaded to ESXi host using scp or winSCP and then specifying the full path on the command-line: 

$ esxcli software vib install --depot=/vmfs/volumes/datastore1/ESXi500-201112001.zip

http://blogs.vmware.com/vsphere/2012/02/quickest-way-to-patch-an-esxesxi-using-the-command-line.html

Limitations of free ESXi 5.1 and 5.0 versions

http://www.vladan.fr/esxi-5-1-free/

http://www.vladan.fr/esxi-5-free-whats-the-limitations/


VMware ESX Roles, Permissions & Privileges Explained
http://www.petri.co.il/vmware-esx-roles-permissions-privileges.htm



Kde hladat I/O drivers pre ESXi a ako ich instalovat...

http://www.vmware.com/resources/compatibility/search.php?deviceCategory=io
http://www.intel.com/support/network/adapter/pro100/sb/CS-029808.htm

esxcli software acceptance set --level=CommunitySupported
Musel som zmenit acceptance level na CommunitySupported aby som mohol nainstalovat tento driver

esxcli software vib install -v /vmfs/volumes/50758252-90f2971c-ba4c-001b21569d7c/Zaloha/Intel-82579LM-1.0.0.x86_64.vib

Vysledok:
~ # esxcli software vib install -v /vmfs/volumes/50758252-90f2971c-ba4c-001b21569d7c/Zaloha/Intel-82579LM-1.0.0.x86_64
.vib
Installation Result
   Message: The update completed successfully, but the system needs to be rebooted for the changes to be effective.
   Reboot Required: true
   VIBs Installed: ppj_bootbank_Intel-82579LM_1.0.0
   VIBs Removed:
   VIBs Skipped:

Manually Patching VMware ESXi 5 with vCLI esxcli

http://blog.firedaemon.com/2012/10/02/manually-patching-vmware-esxi-5-with-vcli-esxcli/


Manually Updating VMware ESXi 5 with vCLI esxcli
http://www.thatcouldbeaproblem.com/?p=429 

Upgrading to ESXi 5.1 best practices
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2032756

My Update:...
esxcli software sources vib list --depot=/vmfs/volumes/50a4fa61-5f1ef7fe-8efc-4c72b956c7c5/InstallUpdates/ESXi510-201210001.zip
esxcli software vib update --depot=/vmfs/volumes/50a4fa61-5f1ef7fe-8efc-4c72b956c7c5/InstallUpdates/ESXi510-201210001.zip

esxcli software sources vib list --depot=/vmfs/volumes/50a4fa61-5f1ef7fe-8efc-4c72b956c7c5/InstallUpdates/ESXi510-201212001.zip

esxcli software vib update --depot=/vmfs/volumes/50a4fa61-5f1ef7fe-8efc-4c72b956c7c5/InstallUpdates/ESXi510-201212001.zip

Updated to version:
~ # vmware -v
VMware ESXi 5.1.0 build-914609

vSphere Command-Line Interface Documentatiom

https://www.vmware.com/support/developer/vcli/

VMware vSphere 5 Essentials Kit for 3 hosts (Max 2 processors per host)

http://www.vmware.com/cz/promotions/2012-go-pro-skus.html

VMware vSphere Essentials Kit Server consolidation with enterprise-class virtualization on the smallest budget

VMware vSphere 5 Essentials Kit for 3 hosts (Max 2 processors per host), Go Pro

EUR 445.50

EUR 58.45 / Required support* EUR 268.50 / Optional per incident support *

How to Create Custom Roles on Standalone ESX(i) Host

http://www.virtuallyghetto.com/2011/06/how-to-create-custom-roles-on.html

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Win7 & Win8 useful commands... (at least for me)

cipher /x
secedit
wbadmin get status
bcdedit /default /?
bcdedit /timeout 30

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