Neil Schneider wrote:
Michael J McCafferty wrote:
All,
I have a customer who has a lot of time invested in configuring his
system and is ready to put it in to production. However, we are
getting
some disk errors on occasion and it's tough to trust it for the long
haul. What is the hot ticket for putting the exact same thing on
another
drive. It's easy to have another identical server sitting next to it
at
the same time, or put an identical disk in the same system to copy
stuff
over.
I am sure I could spend the time to do dd and fdisk, etc, but dumb it
down and speed it up for me. :o) Hmm... can I put a second disk in
the
system and do a dd if=/dev/hda of=/dev/hdb and will that get the boot
sectors, etc ? Is it that simple ?
It's that simple, but I would do dd if=/dev/hda of=/dev/hdc so they
are both on different channels. If they are on the same IDE channel it
will be really slow and take a long time. It will already be slow
because of them being IDE drives.
Just curious:
Would a SCSI transfer be quicker between two disks on one controller or
on separate controllers? If memory serves me, I think I remember
something about SCSI being able to simultaneously copy one disk to six
others all at the same time while barely touching the CPU or system
memory. Is this even close? (Memory may be foggy, and I may have
misunderstood it to begin with.)
--
Ralph
--------------------
An enlightened dictatorship is, without question, the most efficient form of
government.
--Andrew Lentvorski
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