<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <meta name="Generator" content="Microsoft Word 14 (filtered medium)"> <style></style> </head> <body lang="DE-CH" link="blue" vlink="purple"> <div class="WordSection1"> I tried that as well, but still not assembling after a reboot.<o:p></o:p> <o:p> </o:p> And I think you’ll run into problems when you want to resize the LUN or partition in your case.<o:p></o:p> The kernel won’t update it’s partition table, you’d have to reboot.<o:p></o:p> At least that’s my experience. I might be wrong..<o:p></o:p> <o:p> </o:p> <div> <div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"> From: rhelv6-list-bounces@redhat.com [mailto:rhelv6-list-bounces@redhat.com] On Behalf Of Brian Long Sent: Donnerstag, 27. September 2012 02:05 To: Red Hat Enterprise Linux 6 (Santiago) discussion mailing-list Subject: Re: [rhelv6-list] Antwort: Re: MD devices lost after boot<o:p></o:p> </div> </div> <o:p> </o:p> <div> <div> On Sep 27, 2012, at 7:49 AM, Andreas Reschke wrote:<o:p></o:p> </div> <o:p></o:p> <tt><a href="mailto:rhelv6-list-bounces@redhat.com">rhelv6-list-bounces@redhat.com</a> schrieb am 27.09.2012 13:37:29:</tt> <tt>> Brian Long <<a href="mailto:brilong@cisco.com">brilong@cisco.com</a>> </tt> <tt>> Gesendet von: <a href="mailto:rhelv6-list-bounces@redhat.com"> rhelv6-list-bounces@redhat.com</a></tt> <tt>> </tt> <tt>> 27.09.2012 13:39</tt> <tt>> </tt> <tt>> Bitte antworten an</tt> <tt>> "Red Hat Enterprise Linux 6 \(Santiago\) discussion mailing-list" </tt> <tt>> <<a href="mailto:rhelv6-list@redhat.com">rhelv6-list@redhat.com</a>></tt> <tt>> </tt> <tt>> An</tt> <tt>> </tt> <tt>> "Red Hat Enterprise Linux 6 (Santiago) discussion mailing-list" </tt> <tt>> <<a href="mailto:rhelv6-list@redhat.com">rhelv6-list@redhat.com</a>></tt> <tt>> </tt> <tt>> Kopie</tt> <tt>> </tt> <tt>> Thema</tt> <tt>> </tt> <tt>> Re: [rhelv6-list] MD devices lost after boot</tt> <tt>> </tt> <tt>> On Sep 27, 2012, at 3:05 AM, Roth, Sandro wrote:</tt> <tt>> </tt> <tt>> Hi experts</tt> <tt>> </tt> <tt>> I wasn’t sure where to post this so I’m sending it to this list.</tt> <tt>> </tt> <tt>> We have a setup which uses lvm over md over multipath devices. (at </tt> <tt>> least that’s the plan)</tt> <tt>> According to this article it is supported in RHEL6 (it wasn’t in RHEL5)</tt> <tt>> </tt><a href="https://access.redhat.com/knowledge/solutions/48634"><tt>https://access.redhat.com/knowledge/solutions/48634</tt></a> <tt>> </tt> <tt>> I created my md device as follows</tt> <tt>> # mdadm --create --verbose /dev/md0 --level=1 --raid-devices=2 /dev/</tt> <tt>> mapper/mpatha /dev/mapper/mpathb</tt> <tt>> </tt> <tt>> Do /dev/mapper/mpatha and mpathb have partition type of "fd - Linux </tt> <tt>> RAID auto"? If not, they won't be set up properly when booting the server.</tt> <tt>> </tt> <tt>> /Brian/_______________________________________________</tt> <tt>> rhelv6-list mailing list</tt> <tt>> <a href="mailto:rhelv6-list@redhat.com">rhelv6-list@redhat.com</a></tt> <tt>> </tt><a href="https://www.redhat.com/mailman/listinfo/rhelv6-list"><tt>https://www.redhat.com/mailman/listinfo/rhelv6-list</tt></a> <tt>Hi Brian,</tt> <tt>sorry you're not right. There is no need for partitions with lvm. You can use the whole disk without partitions.</tt> <o:p></o:p> </div> <o:p> </o:p> <div> Something is broken with your email client since it's not maintaining threads properly (and it's prepending "Antwort:").<o:p></o:p> </div> <div> <o:p> </o:p> </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.<o:p></o:p> </div> <div> <o:p> </o:p> </div> <div> /Brian/<o:p></o:p> </div> <div> <o:p> </o:p> </div> <div> <div> -- <o:p></o:p> </div> <div> Brian Long | |<o:p></o:p> </div> <div> Corporate Security Programs Org . | | | . | | | .<o:p></o:p> </div> <div> ' ' <o:p></o:p> </div> <div> C I S C O<o:p></o:p> </div> </div> </div> </body> </html> <table><tr><td bgcolor=#ffffff><pre>This email message and any attachments are confidential and may be privileged. If you are not the intended recipient, please notify us immediately and destroy the original transmittal. You are hereby notified that any review, copying or distribution of it is strictly prohibited. Thank you for your cooperation. Header information contained in E-mails to and from the company are monitored for operational reasons in accordance with swiss data protection act.</pre></td></tr></table>