<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=utf-8"> <meta name="Generator" content="Microsoft Word 14 (filtered medium)"> <style></style> </head> <body lang="DE-CH" link="blue" vlink="purple"> <div class="WordSection1"> Hi Andreas<o:p></o:p> <o:p> </o:p> Thank you for your input.<o:p></o:p> I’ve thought about this before, creating a simple init script would definitely solve this problem.<o:p></o:p> <o:p> </o:p> My opinion is that this should be taken care of ‘out of the box’, especially for paying customers.<o:p></o:p> Or at least it should be mentioned in the documentation!<o:p></o:p> <o:p></o:p> I have a support case open for this and will be waiting for an official answer.<o:p></o:p> Just thought I’d ask the lists maybe someone has already gone through this..<o:p></o:p> <o:p> </o:p> Anyway, I’ll use your script in the meantime, so thanks!<o:p></o:p> <o:p> </o:p> <o:p> </o:p> Cheers<o:p></o:p> Sandro<o:p></o:p> <o:p> </o:p> From: rhelv6-list-bounces@redhat.com [mailto:rhelv6-list-bounces@redhat.com] On Behalf Of Andreas Reschke Sent: Donnerstag, 27. September 2012 09:21 To: Red Hat Enterprise Linux 6 (Santiago) discussion mailing-list Subject: [rhelv6-list] Antwort: MD devices lost after boot<o:p></o:p> <o:p> </o:p> <tt><a href="mailto:rhelv6-list-bounces@redhat.com">rhelv6-list-bounces@redhat.com</a></tt><tt> schrieb am 27.09.2012 09:05:35:</tt> <tt>> "Roth, Sandro" <</tt><tt><a href="mailto:Sandro.Roth@zurich-airport.com">Sandro.Roth@zurich-airport.com</a></tt><tt>> </tt> <tt>> Gesendet von: </tt><tt><a href="mailto:rhelv6-list-bounces@redhat.com">rhelv6-list-bounces@redhat.com</a></tt> <tt>> </tt> <tt>> 27.09.2012 09:09</tt> <tt>> </tt> <tt>> Bitte antworten an</tt> <tt>> "Red Hat Enterprise Linux 6 $Santiago$ discussion mailing-list" </tt> <tt>> <</tt><tt><a href="mailto:rhelv6-list@redhat.com">rhelv6-list@redhat.com</a></tt><tt>></tt> <tt>> </tt> <tt>> An</tt> <tt>> </tt> <tt>> "</tt><tt><a href="mailto:rhelv6-list@redhat.com">rhelv6-list@redhat.com</a></tt><tt>" <</tt><tt><a href="mailto:rhelv6-list@redhat.com">rhelv6-list@redhat.com</a></tt><tt>></tt> <tt>> </tt> <tt>> Kopie</tt> <tt>> </tt> <tt>> Thema</tt> <tt>> </tt> <tt>> [rhelv6-list] MD devices lost after boot</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>> /etc/mdadm.conf has the following content</tt> <tt>> DEVICE /dev/mapper/mpath*</tt> <tt>> ARRAY /dev/md/0 metadata=1.2 UUID=52bd4011:f61badd6:0e63e7bb:</tt> <tt>> 2448596b name=spch9003.zrh.local:0</tt> <tt>> </tt> <tt>> Then some lvm stuff on /dev/md0. Everything works fine.</tt> <tt>> But after a reboot the md device won’t get assembled automatically.</tt> <tt>> </tt> <tt>> /proc/mdstat shows</tt> <tt>> Personalities :</tt> <tt>> unused devices: <none></tt> <tt>> </tt> <tt>> And therefore nothing gets mounted either, obviously. </tt> <tt>> I have to</tt> <tt>> </tt> <tt>> # mdadm -As</tt> <tt>> mdadm: /dev/md/0 has been started with 2 drives.</tt> <tt>> # vgchange -ay datavg1</tt> <tt>> 1 logical volume(s) in volume group "datavg1" now active</tt> <tt>> # mount /data</tt> <tt>> </tt> <tt>> I’ve done my part of googleing and a lot of people suggest creating </tt> <tt>> a new initrd when everything is running.</tt> <tt>> So I went…</tt> <tt>> </tt> <tt>> # dracut –f</tt> <tt>> # init 6</tt> <tt>> </tt> <tt>> No change, still won’t get assembled.</tt> <tt>> Any ideas? I’m sure I’m just missing a configuration step..</tt> <tt>> </tt> <tt>> # uname -r; rpm -q mdadm</tt> <tt>> 2.6.32-279.5.1.el6.x86_64</tt> <tt>> mdadm-3.2.3-9.el6.x86_64</tt> <tt>> </tt> <tt>> </tt> <tt>> Any help would be appreciated.</tt> <tt>> </tt> <tt>> </tt> <tt>> Regards</tt> <tt>> </tt> <tt>> </tt> <tt>> Sandro Roth </tt> <tt>> </tt> <tt>> Systems Engineer </tt> <tt>> </tt> <tt>> IT-Operations </tt> <tt>> </tt> <tt>> Flughafen Zürich AG </tt> <tt>> Postfach </tt> <tt>> CH-8058 Zürich-Flughafen </tt> <tt>> </tt> <tt>> </tt><a href="www.flughafen-zuerich.ch"><tt>www.flughafen-zuerich.ch</tt></a><tt> </tt> <tt>> </tt> <tt>> </tt> <tt>> </tt> <tt>> Tel.</tt> <tt>> </tt> <tt>> +41 (0)43 816 10 58</tt> <tt>> </tt> <tt>> Mobile</tt> <tt>> </tt> <tt>> +41 (0)76 356 71 19</tt> <tt>> </tt> <tt>> Fax</tt> <tt>> </tt> <tt>> +41 (0)43 816 76 90</tt> <tt>> </tt> <tt>> </tt> <tt>> </tt> <tt>> </tt> <tt>> This email message and any attachments are confidential and may be </tt> <tt>> privileged. If you are not the intended recipient, please notify us </tt> <tt>> immediately and destroy the original transmittal. You are hereby </tt> <tt>> notified that any review, copying or distribution of it is strictly </tt> <tt>> prohibited. Thank you for your cooperation.</tt> <tt>> </tt> <tt>> Header information contained in E-mails to and from the company are </tt> <tt>> monitored for operational reasons in accordance with swiss data </tt> <tt>> protection act.</tt> <tt>> </tt> <tt>> _______________________________________________</tt> <tt>> rhelv6-list mailing list</tt> <tt>> </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> Hi Sandro, I was in the same situation, so I create this script: [root@bgstorals01 ~]# cat /etc/init.d/raid-setup #!/bin/bash # # chkconfig: 2345 07 86 # description: Start the raid0 with mdadm # processname: - # pidfile: - # config: /etc/mdadm.conf # source function library . /etc/init.d/functions RETVAL=0 start() { action $"Starting raid arrays via mdadm: " /sbin/mdadm.static --assemble --scan action $"Setting up Logical Volume Management:" /sbin/lvm.static vgchange -a y --ignorelockingfailure for fs in `grep noauto /etc/fstab | awk '{ print $2; }'` #for fs in `grep noauto /etc/fstab | cut -d\ -f1` do action $"Mount filesystem $fs:" /bin/mount $fs done touch /var/lock/subsys/raid-start } stop() { rm -f /var/lock/subsys/raid-start } case "$1" in start) start ;; stop) stop ;; restart|reload) stop start ;; condrestart) if [ -f /var/lock/subsys/raid-start ]; then stop start fi ;; status) status raid-start RETVAL=$? ;; *) echo $"Usage: $0 {start|stop|restart|condrestart|status}" exit 1 esac exit $RETVAL [root@bgstorals01 ~]# and take this script in the adequate runlevel BEFORE S15mdmonitor and S15mdmpd is starting. [root@bgstorals01 ~]# ls -l /etc/rc3.d/ | grep raid lrwxrwxrwx 1 root root 20 May 30 07:39 S07raid-setup -> ../init.d/raid-setup [root@bgstorals01 ~]# ls -l /etc/rc5.d/ | grep raid lrwxrwxrwx 1 root root 20 May 30 07:39 S07raid-setup -> ../init.d/raid-setup [root@bgstorals01 ~]# Mit freundlichen Grüßen Andreas Reschke ________________________________________________________________ Unix/Linux-Administration <a href="mailto:Andreas.Reschke@behrgroup.com">Andreas.Reschke@behrgroup.com</a> <o:p></o:p> </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>