Re: Linux supports hot-swappable hardware? [was Re:

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scott.marlowe
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Re: Linux supports hot-swappable hardware? [was Re:
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Pine.LNX.4.33.0306181104570.4992-100000@css120.ihs.com
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Re: postgreSQL on NAS/SAN? "Daniel Seichter" <daniel@dseichter.de>
Re: postgreSQL on NAS/SAN? Bruno Wolff III <bruno@wolff.to>
Re: postgreSQL on NAS/SAN? Jonathan Bartlett <johnnyb@eskimo.com>
Re: postgreSQL on NAS/SAN? Michael Meskes <meskes@postgresql.org>
Re: postgreSQL on NAS/SAN? Ron Johnson <ron.l.johnson@cox.net>
Re: postgreSQL on NAS/SAN? Michael Meskes <meskes@postgresql.org>
Re: postgreSQL on NAS/SAN? Ron Johnson <ron.l.johnson@cox.net>
Re: postgreSQL on NAS/SAN? Michael Meskes <meskes@postgresql.org>
Re: postgreSQL on NAS/SAN? Jason Earl <jason.earl@simplot.com>
Re: postgreSQL on NAS/SAN? Ron Johnson <ron.l.johnson@cox.net>
Re: postgreSQL on NAS/SAN? "scott.marlowe" <scott.marlowe@ihs.com>
Linux supports hot-swappable hardware? [was Re: postgreSQL on NAS/SAN?] "Shridhar Daithankar" <shridhar_daithankar@persistent.co.in>
Re: Linux supports hot-swappable hardware? [was Re: postgreSQL Tino Wildenhain <tino@wildenhain.de>
Re: Linux supports hot-swappable hardware? [was Re: Ernest E Vogelsinger <ernest@vogelsinger.at>
Re: Linux supports hot-swappable hardware? [was Re: Dennis Gearon <gearond@cvc.net>
Re: Linux supports hot-swappable hardware? [was Re: Jonathan Bartlett <johnnyb@eskimo.com>
Re: Linux supports hot-swappable hardware? [was Re: "scott.marlowe" <scott.marlowe@ihs.com>
Re: Linux supports hot-swappable hardware? [was Re: Jonathan Bartlett <johnnyb@eskimo.com>
Re: Linux supports hot-swappable hardware? [was Re: "scott.marlowe" <scott.marlowe@ihs.com>
Re: Linux supports hot-swappable hardware? [was Re: Bruce Momjian <pgman@candle.pha.pa.us>
Re: Linux supports hot-swappable hardware? [was Re: Dennis Gearon <gearond@cvc.net>
Re: Linux supports hot-swappable hardware? [was Re: "scott.marlowe" <scott.marlowe@ihs.com>
Re: Linux supports hot-swappable hardware? [was Re: Ernest E Vogelsinger <ernest@vogelsinger.at>
Re: Linux supports hot-swappable hardware? [was Re: "scott.marlowe" <scott.marlowe@ihs.com>
Re: Linux supports hot-swappable hardware? [was Re: Ernest E Vogelsinger <ernest@vogelsinger.at>
Re: Linux supports hot-swappable hardware? [was Re: Jonathan Bartlett <johnnyb@eskimo.com>
Re: Linux supports hot-swappable hardware? [was Re: Bruce Momjian <pgman@candle.pha.pa.us>
Re: Linux supports hot-swappable hardware? [was Re: Lincoln Yeoh <lyeoh@pop.jaring.my>
Re: Linux supports hot-swappable hardware? [was Re: Jonathan Bartlett <johnnyb@eskimo.com>
Re: Linux supports hot-swappable hardware? [was Re: Ron Johnson <ron.l.johnson@cox.net>
Re: Linux supports hot-swappable hardware? [was Re: "Shridhar Daithankar" <shridhar_daithankar@persistent.co.in>
Re: Linux supports hot-swappable hardware? [was Re: Jonathan Bartlett <johnnyb@eskimo.com>
Re: Linux supports hot-swappable hardware? [was Re: "scott.marlowe" <scott.marlowe@ihs.com>
Re: Linux supports hot-swappable hardware? [was Re: "scott.marlowe" <scott.marlowe@ihs.com>
Re: Linux supports hot-swappable hardware? [was Re: "scott.marlowe" <scott.marlowe@ihs.com>
Re: postgreSQL on NAS/SAN? "Shridhar Daithankar" <shridhar_daithankar@persistent.co.in>
On Wed, 18 Jun 2003, Bruce Momjian wrote:

> scott.marlowe wrote:
> > I've found that while it's a little harder to hot swap individual disks in 
> > linux using sw RAID, the ability to make the raid behave exactly as I want 
> > is worth it.  Having lost a RAID5 set to a hw controller that simply had 
> > the cable to two drives come loose but refused to accept them back into 
> > the RAID5 after that without formatting them first, I'm no longer as wild 
> > about hw raid controllers as I once was.
> 
> It seems that RAID controllers seem to be as likely a failure point as
> disk drives.

Actually, the LSI cards can be setup to each run a RAID0 and then RAID1 
them together, and if one card fails, the other keeps running.  I.e. they 
can run two or more cards as though they were a single device.  It's 
pretty slick.  I'm just not happy with they way they behave when certain 
things happen, like my story above.


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