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segunda-feira, 6 de julho de 2015

Linux - Como mostrar os numeros das linhas no Vi ou VIM


 

:set numberou
:set nu

quarta-feira, 1 de julho de 2015

O mundo na Era do Zettabyte


O mundo na Era do Zettabyte


18 de maio de 2012 | 15h44
Ethevaldo Siqueira
O mundo está diante de um verdadeiro tsunâmi de informações. O volume global de dados produzidos ou replicados em 2011, por exemplo, chegou a 1,8 zettabyte, segundo o IDC (International Data Corporation).
Mas que é um zettabyte? A pergunta tem sentido. Para respondê-la, nada melhor do que recorrer a algumas comparações. Meu computador tem um disco rígido (HD) com capacidade para armazenar um terabyte, ou mil gigabytes. Pois bem: um sistema com a capacidade de um zettabyte (ZB) poderia armazenar o conteúdo de 1 bilhão de HDs iguais ao de meu desktop. Ou preencher a capacidade de armazenamento de 75 bilhões de iPads de 16 GB.

sexta-feira, 3 de abril de 2015

Mikrotik - tem problemas com auto-negociação de portas ethernet

MikroTik and FTTC ECI Modems

682_lECI








There have been many questions asked via phone calls and via the MikroTik forums about MikroTik gigabit devices and problems talking to the commonly used ECI modem in FTTC (BT Infinity) connections. The problems come from a failure to negotiate the link speed on MikroTik gigabit speeds which normally results in a 10mb link being established as opposed to the 100mb full duplex link we expect, a solution can be achieved with the 2011 series routers by using the 10/100 fast Ethernet ports which negotiate fine.

MikroTik has now claimed to have fixed this issue with the latest shipment of Routers.
We have tested and confirmed that the gigabit NICs will now negotiate a 100mb full duplex link automatically with no problem, on the following products:
Please let us know when ordering if you intend to use the Mikrotik with a FTTC ECI modem and we shall endeavour to source one of the latest units.