Re: end to end error recovery musings

2007-02-25 Thread Douglas Gilbert
H. Peter Anvin wrote: > Ric Wheeler wrote: >> >> We still have the following challenges: >> >>(1) read-ahead often means that we will retry every bad sector at >> least twice from the file system level. The first time, the fs read >> ahead request triggers a speculative read that includes the

Re: end to end error recovery musings

2007-02-25 Thread Neil Brown
On Friday February 23, [EMAIL PROTECTED] wrote: > On Fri, Feb 23, 2007 at 05:37:23PM -0700, Andreas Dilger wrote: > > > Probably the only sane thing to do is to remember the bad sectors and > > > avoid attempting reading them; that would mean marking "automatic" > > > versus "explicitly requested