squid

[Giorgos Keramidas]

On 2005-07-17 22:08, Steve Stavropoulos <nothere at gmail.com> wrote:
> On 7/17/05, Giorgos Keramidas <keramida at ceid.upatras.gr> wrote:
> > On 2005-07-17 17:19, Αθανάσιος Οικονόμου <athoik at gmail.com> wrote:
> > > To kako me to dd einai oti an exei bad sectors o enas skliros tha ta
> > > antigrapsei kai ston allo...  As me diorthosei kapios an kanw lathos.
> >
> > H apla tha apotuxei na ta antigrapsei kai tha skasei.
>
> conv=noerror (poly xrhsimo option, eidika se xalasmena cdrom)
>
> > An kapoios thelei pragmatika na kerdisei se asfaleia h/kai apodosh, den
> > einai h dd(1) ayth pou prepei na psaxnei, alla kati se software raid :-)
>
>  E3artatai apo thn periptwsh. To software raid de se kalyptei sthn
> periptwsh tou data corruption logw xalasmenou controller (mou exei
> tyxei kai ayto), h sthn periptwsh pou sbhseis kati katala8os (px. dd
> if=/dev/random of=/dev/hda). An ta dedomena sou den allazoun syxna kai
> de se peirazei ligo downtime mexri na kaneis thn allagh twn diskwn, to
> dd einai kalytero, ws poio asfales. Fysika to dd den ypoka8ista to
> swsto backup alla sou meiwnei drastika to recovery time...

Akomh ki etsi, to dd(1) den einai idiaitera 'apodotiko' afou den
sugkrinetai me ena dump(8)/restore(8) backup systhma.  Alla telos
pantwn...