<div dir="ltr">Older drives were built with 512B sectors, so a sector starting at any 512B boundary IS "properly aligned"... to that drive. Newer spinning media drives use 4kB, as discussed earlier, so your partitions should ideally be aligned to a 4kB boundary (as well as files). To add to the complexity, a similar thing holds true for erase block sizes on SSDs, but those can be as large as 4M. Of course, aligning files to a 4M boundary is not as easily done unless you want lots of wasted space... so it's a tradeoff in that case.</div>
<div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Jan 3, 2013 at 2:09 PM, Ron Frazier (ALE) <span dir="ltr"><<a href="mailto:atllinuxenthinfo@techstarship.com" target="_blank">atllinuxenthinfo@techstarship.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi JD,<br>
<br>
Thanks for that info. I did some more research. I'll be sharing that in a thread with a different subject. This might have worked if the original source drive had been properly aligned.<br>
<br>
Sincerely,<br>
<br>
Ron<div class="HOEnZb"><div class="h5"><br>
<br>
On 12/31/2012 5:54 PM, JD wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I think you might have been better off using parted or gparted to clone the<br>
disks. Those tools, on current distros, **know** how to align on 4K sector HDDs.<br>
<br>
Your Windows performance will probably suffer too until you correct this issue.<br>
<br>
Just backup the data to that backup drive, repartition and restore. I'm certain<br>
you have great backups. ;)<br>
<br>
<br>
<br>
On 12/31/2012 05:15 PM, Ron Frazier (ALE) wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi all,<br>
<br>
HELP. I cloned my 500 GB hdd which was threatening failure for my laptop to a<br>
new 750 GB hdd using Acronis True Image. I told it to leave the partition sizes<br>
unchanged, so the extra space at the end of the drive is unallocated.<br>
<br>
I can now boot both Windows 7 and Ubuntu and they work fine. However, Disk<br>
Utility in Ubuntu is giving an error message on each partition that says:<br>
<br>
WARNING: The partition is misaligned by xxxx bytes. This may result in very<br>
poor performance. Repartitioning is suggested.<br>
<br>
The number xxxx varies by partition, and all partitions are showing the problem,<br>
except for the unallocated space. The following screen shots show each error.<br>
<br>
<a href="https://dl.dropbox.com/u/9879631/123112-Screenshot-01.png" target="_blank">https://dl.dropbox.com/u/<u></u>9879631/123112-Screenshot-01.<u></u>png</a><br>
<a href="https://dl.dropbox.com/u/9879631/123112-Screenshot-02.png" target="_blank">https://dl.dropbox.com/u/<u></u>9879631/123112-Screenshot-02.<u></u>png</a><br>
<a href="https://dl.dropbox.com/u/9879631/123112-Screenshot-03.png" target="_blank">https://dl.dropbox.com/u/<u></u>9879631/123112-Screenshot-03.<u></u>png</a><br>
<a href="https://dl.dropbox.com/u/9879631/123112-Screenshot-04.png" target="_blank">https://dl.dropbox.com/u/<u></u>9879631/123112-Screenshot-04.<u></u>png</a><br>
<br>
Windows 7 seems to run fine and is apparently not bothered, although there may<br>
be hidden effects I cannot see. What are the implications of this? How do I<br>
fix it? Note that I don't want to erase any data in any of the partitions. The<br>
disk is formatted as MBR.<br>
<br>
The following scree<br>
<br>
</blockquote>
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<br>
</blockquote>
<br></div></div><div class="im HOEnZb">
-- <br>
<br>
(To whom it may concern. My email address has changed. Replying to former<br>
messages prior to 03/31/12 with my personal address will go to the wrong<br>
address. Please send all personal correspondence to the new address.)<br>
<br>
(PS - If you email me and don't get a quick response, you might want to<br>
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<br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br>David Tomaschik<br>OpenPGP: 0x5DEA789B<br><a href="http://systemoverlord.com" target="_blank">http://systemoverlord.com</a><br><a href="mailto:david@systemoverlord.com" target="_blank">david@systemoverlord.com</a>
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