I guess you might do what you want with the md driver of the kernel:
from /usr/src/linux/Documentation/configure.help:
----------------------------------------
CONFIG_BLK_DEV_MD
This driver lets you combine several hard disk partitions into one
logical block device. This can be used to simply append one
partition to another one or to combine several redundant
hard disks to a RAID1/4/5 device so as to provide protection against
hard disk failures. This is called "Software RAID" since the
combining of the partitions is done by the kernel. "Hardware RAID"
means that the combining is done by a dedicated controller; if you
have such a controller, you do not need to say Y here.
More information about Software RAID on Linux is contained in the
Software-RAID mini-HOWTO, available via FTP (user: anonymous) from
ftp://metalab.unc.edu/pub/Linux/docs/HOWTO/mini. There you will also
learn where to get the supporting user space utilities raidtools.
If unsure, say N.
Linear (append) mode
CONFIG_MD_LINEAR
If you say Y here, then your multiple devices driver will be able to
use the so-called linear mode, i.e. it will combine the hard disk
partitions by simply appending one to the other.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called linear.o.
If unsure, say Y.
RAID-0 (striping) mode
CONFIG_MD_STRIPED
If you say Y here, then your multiple devices driver will be able to
use the so-called raid0 mode, i.e. it will combine the hard disk
partitions into one logical device in such a fashion as to fill them
up evenly, one chunk here and one chunk there. This will increase
the throughput rate if the partitions reside on distinct disks.
Information about Software RAID on Linux is contained in the
Software-RAID mini-HOWTO, available via FTP (user: anonymous) from
ftp://metalab.unc.edu/pub/Linux/docs/HOWTO/mini. There you will also
learn where to get the supporting user space utilities raidtools.
If you want to compile this as a module ( = code which can be
inserted in and removed from the running kernel whenever you want),
say M here and read Documentation/modules.txt. The module will be
called raid0.o.
If unsure, say Y.
--------------------------------
pascal
> -----Original Message-----
> From: Paul Rogers [mailto:[EMAIL PROTECTED]]
> Sent: Friday, August 13, 1999 12:35 PM
> To: linux-newbie
> Subject: Multiple hard drives
>
>
> Dear All
>
> Is it possible to have one mount point comprised of more than one HDD?
> I'd like to have an area say /data which comprises two physically
> seperate HDDs (one 4G and one 8G).
>
> Is this possible and if so any help/pointers would be gratefully
> received :-)
>
> Paul
>
>
