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Tuesday, October 01, 2013

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.

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

Friday, March 29, 2013

RDP to Ubuntu


 sudo apt-get install xrdp

cd home/username/


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

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

Thursday, February 28, 2013