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<p>You can also create a raid1 volume using the second disk and a "missing" disk. Copy all the data from the source to the new raid volume, then rebuild the first disk into the array.</p>
<p>But since you need a backup before attempting any disk changes, it may be simpler to perform a backup, build, restore.</p>
<p>For cables, I use Amazon and Monoprice. If I need it quicker, I use Digilink Computers in Okemos.</p>
<p>--Daniel</p>
<p>On 2014-08-03 12:29, Jason L. Froebe wrote:</p>
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<p dir="ltr">You could convert the ext4 file system to btrfs, add the second drive to the btrfs and then convert to raid 1.</p>
<p dir="ltr">Jason</p>
<div class="gmail_quote">On Aug 3, 2014 9:21 AM, "Clay Dowling" <<a href="mailto:clay@lazarusid.com">clay@lazarusid.com</a>> wrote:<br />
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<p style="margin-top: 0px; margin-bottom: 0px;">That will indeed delete all of your files. Take a backup before fiddling with filesystem options.</p>
<p style="margin-top: 0px; margin-bottom: 0px;">------ Original message------</p>
<p style="margin-top: 0px; margin-bottom: 0px;"><strong>From: </strong>Chick Tower<span style="text-decoration: underline;"></span></p>
<p style="margin-top: 0px; margin-bottom: 0px;"><strong>Date: </strong>Sat, Aug 2, 2014 11:44 PM</p>
<p style="margin-top: 0px; margin-bottom: 0px;"><strong>To: </strong><a href="mailto:linux-user@egr.msu.edu">linux-user@egr.msu.edu</a>;</p>
<p style="margin-top: 0px; margin-bottom: 0px;"><strong>Subject:</strong>[GLLUG] Establishing Software RAID1</p>
<p style="margin-top: 0px; margin-bottom: 0px;"> </p>
<pre>I've found on-line instructions for setting up RAID1 with two disk
drives on a system already running Linux. After using mdadm to create a
RAID set on two partitions already formatted ext3, they then say to
issue the command
mkfs.ext3 /dev/md0
Won't that erase anything already on the two drive partitions that make
up md0?
Also, does anyone know where to buy SATA cables cheaply? I think I need
to replace one that I suspect is faulty.
--
Chick
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