I'll risk heresy.<br><br>1. Remount existing drive as /data/d0<br>2. Add new drive with its own filesystem as /data/d1<br>3. Go back to where /data/d0 used to be mounted and create a pile of symbolic links to /data/d?/*.(mpg|avi|mkv) or what have you.<br>
<br>Yes, it's trading one form of fiddly management for another, but the symbolic links method doesn't have you futzing around trying to recover data - you just know you're going to lose some and have to re-rip. At least this way there's a given amount of content unharmed and still online while you get back what was lost.<br>
<br>Jason<br><br><br><div class="gmail_quote">On Sun, Oct 18, 2009 at 7:17 PM, Greg Grotsky <span dir="ltr"><<a href="mailto:spikeygg@gmail.com">spikeygg@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>To all interested,</div>
<div> </div>
<div>I recently (two weeks ago) purchased a 2TB WD HDD from Newegg. It was my wife's birthday present... she loves her movie collection. I formatted it with jfs because I read lots of good things about it's large file performance. I've been ripping DVDs steadily and so far I'm ~270 down but the drive is getting full and I have about 75 to go! Unfortunately, I don't have enough space to finish our collection! Just today I purchased another 2TB drive and I'm planning on building it into a 4TB LVM. Since I've already got 2TB of data on one I have to:</div>
<div> </div>
<div>1) plug in the new drive.</div>
<div>2) create a pv, vg, and lv on the new drive.</div>
<div>3) copy all the movies from the jfs drive to the new lv.</div>
<div>4) wipe the partition info and create and LVM partition on it.</div>
<div>5) extend the new lv onto the old disk.</div>
<div>6) extend the filesystem.</div>
<div>(let me know if I'm missing anything here)</div>
<div> </div>
<div>Because of this I need to use a filesystem that can be resized. I know that JFS can but I worry that it can not be shrunk (I'm not sure why).</div>
<div> </div>
<div>My questions are:</div>
<div>1) Should I be worried that I cannot shrink JFS?</div>
<div>2) Should I use another filesystem type because I cannot shrink JFS, or for some other reason?</div>
<div>3) I've read some things about ext4 which make it sound very appealing. Has anyone had experience growing an ext4 fs to 4TB?</div>
<div> </div>
<div>I want to be able to add much more space in the future, so I don't want to be limited on resizing. I've been reading about ext4, and apparently there is a 4TB soft limit on fs resizing; the article below talks about some META_BG feature but I have no idea what that means.</div>
<div><a href="http://ext4.wiki.kernel.org/index.php/Frequently_Asked_Questions#How_to_online_resize_the_Ext4_filesystem.3F" target="_blank">http://ext4.wiki.kernel.org/index.php/Frequently_Asked_Questions#How_to_online_resize_the_Ext4_filesystem.3F</a></div>
<div> </div><br></blockquote></div>