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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">From experience we have seen, Anaconda will correctly handle alignment for partitions done during install. For any additional disks we add, we always manually
re-align it.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">The issue as I understand it has to do with potentially “double-reading” all blocks.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">Kevin<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> rhelv6-list-bounces@redhat.com [mailto:rhelv6-list-bounces@redhat.com]
<b>On Behalf Of </b>francis picabia<br>
<b>Sent:</b> Thursday, March 20, 2014 9:59 AM<br>
<b>To:</b> Red Hat Enterprise Linux 6 (Santiago) discussion mailing-list<br>
<b>Subject:</b> [rhelv6-list] Align partition question on vmware<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Hi all,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">So I install Redhat 6 on a vmware system. Later I learn<br>
this partition alignment issue common to large 1TB+<br>
drives can be an issue on vmware.<br>
<br>
I check a recent system, and the installer seemed<br>
to do the right thing with sda, as the fdisk -lu<br>
reports the first cylinder is 2048<br>
<br>
Device Boot Start End Blocks Id System<br>
/dev/sda1 * 2048 24578047 12288000 83 Linux<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">I added another vm storage later for /usr/local<br>
and it seems to be set up the old way:<br>
<br>
fdisk -lu<br>
<br>
Disk /dev/sdb: 219.0 GB, 219043332096 bytes<br>
255 heads, 63 sectors/track, 26630 cylinders, total 427819008 sectors<br>
Units = sectors of 1 * 512 = 512 bytes<br>
Sector size (logical/physical): 512 bytes / 512 bytes<br>
I/O size (minimum/optimal): 512 bytes / 512 bytes<br>
Disk identifier: 0xaa10a650<br>
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Device Boot Start End Blocks Id System<br>
/dev/sdb1 63 427810949 213905443+ 83 Linux<o:p></o:p></p>
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<p class="MsoNormal">The guys running a system from there are claiming it is slower than<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">the Sun 208R they were used to running, and it has no load on it.<o:p></o:p></p>
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<p class="MsoNormal">Most articles I see about this are taking about the boot loading<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">disk, while I'm looking at the issue for sdb. Should I be concerned<br>
and looking at redoing the partitioning?<br>
<br>
<o:p></o:p></p>
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