<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>On Sep 27, 2012, at 7:49 AM, Andreas Reschke wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><tt><font size="2"><a href="mailto:rhelv6-list-bounces@redhat.com">rhelv6-list-bounces@redhat.com</a> schrieb am 27.09.2012
13:37:29:<br>
<br>
> Brian Long <<a href="mailto:brilong@cisco.com">brilong@cisco.com</a>> </font></tt>
<br><tt><font size="2">> Gesendet von: <a href="mailto:rhelv6-list-bounces@redhat.com">rhelv6-list-bounces@redhat.com</a><br>
> </font></tt>
<br><tt><font size="2">> 27.09.2012 13:39</font></tt>
<br><tt><font size="2">> <br>
> Bitte antworten an<br>
> "Red Hat Enterprise Linux 6 \(Santiago\) discussion mailing-list"
<br>
> <<a href="mailto:rhelv6-list@redhat.com">rhelv6-list@redhat.com</a>></font></tt>
<br><tt><font size="2">> <br>
> An</font></tt>
<br><tt><font size="2">> <br>
> "Red Hat Enterprise Linux 6 (Santiago) discussion mailing-list"
<br>
> <<a href="mailto:rhelv6-list@redhat.com">rhelv6-list@redhat.com</a>></font></tt>
<br><tt><font size="2">> <br>
> Kopie</font></tt>
<br><tt><font size="2">> <br>
> Thema</font></tt>
<br><tt><font size="2">> <br>
> Re: [rhelv6-list] MD devices lost after boot</font></tt>
<br><tt><font size="2">> <br>
> On Sep 27, 2012, at 3:05 AM, Roth, Sandro wrote:</font></tt>
<br><tt><font size="2">> <br>
> Hi experts</font></tt>
<br><tt><font size="2">> </font></tt>
<br><tt><font size="2">> I wasn’t sure where to post this so I’m sending
it to this list.</font></tt>
<br><tt><font size="2">> </font></tt>
<br><tt><font size="2">> We have a setup which uses lvm over md over multipath
devices. (at <br>
> least that’s the plan)</font></tt>
<br><tt><font size="2">> According to this article it is supported in
RHEL6 (it wasn’t in RHEL5)</font></tt>
<br><tt><font size="2">> </font></tt><a href="https://access.redhat.com/knowledge/solutions/48634"><tt><font size="2">https://access.redhat.com/knowledge/solutions/48634</font></tt></a>
<br><tt><font size="2">> </font></tt>
<br><tt><font size="2">> I created my md device as follows</font></tt>
<br><tt><font size="2">> # mdadm --create --verbose /dev/md0 --level=1
--raid-devices=2 /dev/<br>
> mapper/mpatha /dev/mapper/mpathb</font></tt>
<br><tt><font size="2">> <br>
> Do /dev/mapper/mpatha and mpathb have partition type of "fd -
Linux <br>
> RAID auto"? If not, they won't be set up properly when
booting the server.</font></tt>
<br><tt><font size="2">> <br>
> /Brian/_______________________________________________<br>
> rhelv6-list mailing list<br>
> <a href="mailto:rhelv6-list@redhat.com">rhelv6-list@redhat.com</a><br>
> </font></tt><a href="https://www.redhat.com/mailman/listinfo/rhelv6-list"><tt><font size="2">https://www.redhat.com/mailman/listinfo/rhelv6-list</font></tt></a>
<br>
<br><tt><font size="2">Hi Brian,</font></tt>
<br>
<br><tt><font size="2">sorry you're not right. There is no need for partitions
with lvm. You can use the whole disk without partitions.</font></tt>
<br></blockquote></div><br><div>Something is broken with your email client since it's not maintaining threads properly (and it's prepending "Antwort:").</div><div><br></div><div>Last I knew, if you didn't use partitions with MD and/or LVM, certain things wouldn't work properly. I always create a single whole-disk partition and give it a "fd" type. I think this is still the best practice although it's not a requirement.</div><div><br></div><div>/Brian/</div><div><br></div><div><div style="font-family: Helvetica; "><font class="Apple-style-span" face="'Lucida Console'">-- </font></div><div style="font-family: Helvetica; "><font class="Apple-style-span" face="'Lucida Console'"> Brian Long | |</font></div><div style="font-family: Helvetica; "><font class="Apple-style-span" face="'Lucida Console'"> Corporate Security Programs Org . | | | . | | | .</font></div><div style="font-family: Helvetica; "><font class="Apple-style-span" face="'Lucida Console'"> ' ' </font></div><div style="font-family: Helvetica; "><font class="Apple-style-span" face="'Lucida Console'"> C I S C O</font></div></div></body></html>