On Tuesday 09 January 2001 03:23, you wrote:
> On Monday 08 January 2001 05:23, you wrote:
> > On Monday 08 January 2001 09:07, you wrote:
> > > All,
> > >
> > > I have just bought Mandrake version 7.2, but I have run into a
> > > problem. I have a Pentium II with 2x 30 Gigabyte IDE disk drive ( RAID
> > > 1 ). The first problem is related to the LBA issue, e.g. the two disk
> > > drives has different geometry, which I now understand makes no
> > > difference under Linux. The other is to actually install Mandrake on
> > > the two devices ( Raid 1 ), or just install on hda and then to run
> > > mkraid to create the md devices.
> > >
> > > Do I need to get another distribution, such as Red Hat ( which supports
> > > Raid 1 during installations ).
> > >
> > > I would greatly appreciate it if someone could give me the bullet
> > > points for how to implement RAID 1 for Mandrake, for a first time
> > > installation from the CD-ROM.
> > >
> > > I have been successfully running Slackware ( for years ) on another
> > > Celeron based system, which is going to be replaced by the above
> > > system.
> > >
> > > Thx,
> > > Hans E.
> >
> > If you have the Promise controller, you can do RAID 1 under any linux,
> > with recompilation of the drivers, however, be advised that IDE Raid is
> > not hardware. It is a BIOS/firmware kludge that emulates real hardware
> > RAID. If you do not have the promise controller, no linux will support
> > your RAID at install or at any other time because the drivers for windows
> > only are a tightly kept secret.
> >
> > There is another option, forget the RAID installed and use the Linux
> > Software RAID implementation(there is a HOWTO at linuxdoc.org), which is
> > at least the equal of any of the IDE fake hardware RAIDs though it does
> > take up a little more drive space and offers more partitions. All of the
> > IDE RAIDs _reduce_ your drive capacity because they keep information to
> > support the RAID on cylinders that are destroked (no longer within drive
> > limits for normal operation).
> >
> > If you are dual-booting windows, you can use the "hardware" RAID on board
> > for the windows partition and use linux software RAID for all other
> > partitions. (Third possible option).
> >
> > Civileme
>
> You say that if the controller is not Promise that no Linux will support
> the controller at install or at any other time. What about the Compaq
> Smart-2 controller? The xconfig gives the option of the Compaq Smart-2
> RaidArray support. I have tried it and have had some success (Compaq has a
> patch out for it..) with it. But I have gotten detoured to other
> projects....
We are discussing IDE RAID which is a software/firmware implementation of
RAID for IDE devices. The Compaq SMART series are very excellent SCSI RAID
controllers, which are fully supported as are most other SCSI RAIDs.
Civileme
