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We're running a network using SCO Unix version 3.5.4. &nbsp;Our main Hard Drive (SCSI disk) is near the end of its reliable lifetime. &nbsp;I need to mirror the contents of this disk to a new SCSI hard disk. &nbsp;Then, I'd need to switch the disks so that the new disk becomes the boot disk. &nbsp;In effect, I shall be mirroring the contents of the old disk with the new, and replacing the old with the new.<br />
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What are the necessary commands to do this, and how do I configure the new HD for simultaneous operation with the old in order to accomplish the actual mirroring phase?<br />
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I am assuming that once this is accomplished I will be able to simply switch the SCSI ID's of the drives and the system will function as before.
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We're running a network using SCO Unix version 3.5.4.  Our main Hard Drive (SCSI disk) is near the end of its reliable lifetime.  I need to mirror the contents of this disk to a new SCSI hard disk.  Then, I'd need to switch the disks so that the new disk becomes the boot disk.  In effect, I shall be mirroring the contents of the old disk with the new, and replacing the old with the new.

What are the necessary commands to do this, and how do I configure the new HD for simultaneous operation with the old in order to accomplish the actual mirroring phase?

I am assuming that once this is accomplished I will be able to simply switch the SCSI ID's of the drives and the system will function as before.

Mirroring boot disk

Unix is a multitasking, multi-user computer operating system originally developed in 1969 at Bell Labs. Today, it is a modern OS with many commercial flavors and licensees, including FreeBSD, Hewlett-Packard’s UX, IBM AIX and Apple Mac OS-X. Apart from its command-line interface, most UNIX variations support the standardized X Window System for GUIs, with the exception of the Mac OS, which uses a proprietary system.