Re: Why database is corrupted after re-booting

Alex Turner wrote:
> Of course not counting the Western Digital Raptor SATA drive, which
> are priced more like SCSI drives also, and have many of the features
> of a SCSI drive including NCQ
>

Well, the PDF talks about several aspects of server drives, including
concurrency, performance, and reliability. Not cutting corners to save
money in these areas are features for server drives.

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> Alex
>
> On 10/28/05, Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> wrote:
> > Andrus wrote:
> > > >> QUANTUM FIREPALLP LM20.5 is a widely used ATA IDE drive.
> > > >>
> > > >> Where do find information does it implement write caching properly or not
> > > >> ?
> > > >
> > > > I don't think the manufacturers bother to make this sort of information
> > > > available.
> > > >
> > > >> Is there IDE drive compatibility list for Postgres ?
> > > >
> > > > No - for the reason above (amongst oghers).
> > >
> > > Richard, thank you.
> > > Classification of IDE drives into good and bad ones requires knowing *at
> > > least one* good and bad model.
> > >
> > > Can you write one good and bad IDE drive models, please?
> > >
> > > Knowing those models before buying is huge step forward for perventing
> > > database corruption in desktop computers.
> >
> > The bottom line is that IDE are desktop drives, not designed for high
> > concurrency. Read this for details:
> >
> > http://www.seagate.com/content/docs/pdf/whitepaper/D2c_More_than_Interface_ATA_vs_SCSI_042003.pdf
> >
> > --
> > Bruce Momjian | http://candle.pha.pa.us
> > pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
> > + If your life is a hard drive, | 13 Roberts Road
> > + Christ can be your backup. | Newtown Square, Pennsylvania 19073
> >
> > ---------------------------(end of broadcast)---------------------------
> > TIP 6: explain analyze is your friend
> >
>

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073