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Using a USB external HDD as a mirror
I have a RH Linux 6.2 server that has two internal IDE HDD. HDD-1 is 60bg and HDD-2 is 140gb. I have purchased two usb external HDD that are equal or greater storage capacity. I would like to use the usb drives to mirror each of the internal drives. The server chassis does not have any open bays for placement of an internal IDE drive, this is why I am having to use USB external drives. The server MB does have 2 open usb ports, but to be honest they have never been used. I only assume they are enabled in the bios. If not, I can do that.
(1) can this be done? if so,
(2) what is the procedure for getting the server to mirror the drives, such as commands, editing the specific files, mounting the usb drives, etc.
Please be very specific with answers as I am, by no means, a linux person, but do have some experience. Windows is by choice. Anyway, I will thank all in advance for any detailed answers posted. Mucho points for this.
(1) can this be done? if so,
(2) what is the procedure for getting the server to mirror the drives, such as commands, editing the specific files, mounting the usb drives, etc.
Please be very specific with answers as I am, by no means, a linux person, but do have some experience. Windows is by choice. Anyway, I will thank all in advance for any detailed answers posted. Mucho points for this.
ASKER
Mirror drive. RAID 1
A seperate drive of equal storage capacity that is a redundant drive for the main IDE drive. Data writes/reads from both devices at the same time. A RAID-1 device (e.g., /dev/md0) maintains an exact copy (mirror) of the files in a given partition (e.g. /dev/hda2) on a separate partition (e.g./dev/hdc2). The Linux RAID code mirrors partitions, not entire disks. The partitions that make up a RAID device set should be on separate hard disks.
maybe this helps. But, yes the mirror drives will be attached all the time, and must mount upon boot.
A seperate drive of equal storage capacity that is a redundant drive for the main IDE drive. Data writes/reads from both devices at the same time. A RAID-1 device (e.g., /dev/md0) maintains an exact copy (mirror) of the files in a given partition (e.g. /dev/hda2) on a separate partition (e.g./dev/hdc2). The Linux RAID code mirrors partitions, not entire disks. The partitions that make up a RAID device set should be on separate hard disks.
maybe this helps. But, yes the mirror drives will be attached all the time, and must mount upon boot.
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Barry