<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div id="yiv0668673228"><div><div style="color:#000;background-color:#fff;font-family:times new roman, new york, times, serif;font-size:12pt;">Creating a new RAMDISK resolved the issue as suggested by Elvir Kuric after blacklisting the local disk in multipath.conf . <br clear="none"><br clear="none">====<br clear="none">$ df<br clear="none">Filesystem 1K-blocks Used Available Use% Mounted on<br clear="none">/dev/sda8 43112964 19708732 21214204 49% /<br clear="none">tmpfs 32978736 25836 32952900 1% /dev/shm<br
clear="none">/dev/sda1 198337 66006 122091 36%
/boot<br clear="none">/dev/sda6 10079084 840160 8726924 9% /opt<br clear="none">/dev/mapper/mpathbp1 51606124 184136 48800552 1% /webdata<br clear="none">/dev/mapper/mpathcp1 209690016 3414728 206275288 2% /sharedweb<br clear="none">===<br clear="none"><br clear="none">Other options of setting following parameter " find_multipaths yes" did not helped to resolve the issue. <br clear="none"><br clear="none">Thanks all for the replies and suggestions. <br clear="none"><div id="yiv0668673228yui_3_13_0_rc_1_9_1382601039487_8"><br clear="none"><span id="yiv0668673228yui_3_13_0_rc_1_9_1382601039487_30"></span></div><div id="yiv0668673228yui_3_13_0_rc_1_9_1382601039487_67" style="color:rgb(0, 0, 0);font-size:16px;font-family:times new roman, new york, times,
serif;background-color:transparent;font-style:normal;"><span id="yiv0668673228yui_3_13_0_rc_1_9_1382601039487_30">Thanks</span></div><div id="yiv0668673228yui_3_13_0_rc_1_9_1382601039487_71" style="color:rgb(0, 0, 0);font-size:16px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;"><span id="yiv0668673228yui_3_13_0_rc_1_9_1382601039487_30">Zaman<br clear="none"></span></div><div class="yiv0668673228yahoo_quoted" id="yiv0668673228yui_3_13_0_rc_1_9_1382601039487_10" style="display: block;"> <br clear="none"> <br clear="none"> <div class="yiv0668673228yui_3_13_0_rc_1_1_1382601039487_23360" style="font-family:times new roman, new york, times, serif;font-size:12pt;"> <div class="yiv0668673228yui_3_13_0_rc_1_1_1382601039487_23361" style="font-family:times new roman, new york, times, serif;font-size:12pt;"> <div class="yiv0668673228yqt0941813817" id="yiv0668673228yqt27701"><div dir="ltr"> <font face="Arial"
size="2"> On Tuesday, 22 October 2013 4:58 PM, Elvir Kuric <ekuric@redhat.com> wrote:<br clear="none"> </font> </div> <div class="yiv0668673228y_msg_container"><div id="yiv0668673228"><div>
<div class="yiv0668673228yqt1326583840" id="yiv0668673228yqt92862"><div class="yiv0668673228moz-cite-prefix">On 10/22/2013 12:17 PM, Zama Ques
wrote:<br clear="none">
</div>
<blockquote type="cite">
<div class="yiv0668673228yui_3_13_0_rc_1_1_1382601039487_23363" style="color:#000;background-color:#fff;font-family:times new roman, new york, times, serif;font-size:12pt;">
<div class="yiv0668673228post-text">
<div>My local partitions are detected as multipath device <br clear="none">
</div>
<pre><code>$multipath -l
mpathb (360014380125d90420000a000003e0000) dm-9 HP,HSV450
size=200G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=0 status=active
`- 3:0:0:1 sdb 8:16 active undef running
mpatha (3600508b1001c02143bc59c6862d97353) dm-0 HP,LOGICAL VOLUME
size=137G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=0 status=active
`- 0:0:0:1 sda 8:0 active undef running
</code></pre>
<div>I added the following lines in multipath.conf so that
local partitions are not considered as multipath device</div>
<pre><code>blacklist {
wwid 3600508b1001c02143bc59c6862d97353
}
</code></pre>
<div>Executed the following commands after that .</div>
<pre><code>#service multipathd reload
# multipath -F
Oct 22 12:10:42 | mpathb: map in use
Oct 22 12:10:42 | mpatha: map in use
</code></pre>
<div>So , tried rebooting the server , but no luck . Any clues
to resolve the issue will be highly appreciated . <br clear="none">
</div>
<div class="yiv0668673228yui_3_13_0_rc_1_1_1382601039487_23364" style="color:rgb(0, 0, 0);font-size:16px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;"><br clear="none">
</div>
<div class="yiv0668673228yui_3_13_0_rc_1_1_1382601039487_23365" style="color:rgb(0, 0, 0);font-size:16px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;">Thanks</div>
<div class="yiv0668673228yui_3_13_0_rc_1_1_1382601039487_23366" style="color:rgb(0, 0, 0);font-size:16px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;">Zaman<br clear="none">
</div>
</div>
</div>
<br clear="none">
<fieldset class="yiv0668673228mimeAttachmentHeader"></fieldset>
<br clear="none">
</blockquote></div>
<tt>hi,</tt><br clear="none">
<br clear="none">
<tt>/me wonders what OS ( and version ) is in use? service
multipathd relaod ... suggest it is something RHEL based ( not 100
</tt><tt>% sure ) </tt><br clear="none">
<br clear="none">
<tt>Check /etc/multipath/* files ( if rhel 6 ) and see is there
WWID from above, and also check initramfs ( RHEL 6 ) or initrd
file ( RHEL 5 ) from /b</tt><tt>oot </tt><br clear="none">
<br clear="none">
<tt>do</tt><tt> below </tt><br clear="none">
<br clear="none">
<tt># mkdir /tmp/initrdtes</tt><tt>t </tt><br clear="none">
<tt># cp /boot/initramfs-$$$$.img ( or initrd ... ) /t</tt><tt>mp/initrdtest
</tt><br clear="none">
<br clear="none">
<tt>unpack it </tt><br clear="none">
<br clear="none">
<tt># </tt><tt>cd tmp/initrdtest </tt><br clear="none">
<br clear="none">
<tt># zcat initrd.img | cpio -i </tt><br clear="none">
<br clear="none">
<tt>and check what is there for multiapth devices written.</tt><br clear="none">
<br clear="none">
<tt>In short, I think you will need to ensure there are not records
for devices you want to blacklist in /etc/multipath/* ( rhel 6 )
or /var/lib/multipath/* ( rhel 5 ) and rebuild initramfs /
initrd ( depending is it RHEL 5 - initrd / RHEL 6 -initramfs )
once these records are not present.Rebuilding initrd/initramfs
will pick values from /etc/multipath/* ( rhel 6 ) or
/var/lib/multipath/ ( rhel 5 ) <br clear="none">
<br clear="none">
to rebuild initrd/initramfs check docs out there but in short
process is ( after you remove records for WWID from wwid and
bindings files - read above ) <br clear="none">
<br clear="none">
<br clear="none">
RHEL 5: <br clear="none">
<br clear="none">
# cd /boot<br clear="none">
# cp initrd-$(uname -r).img initrd-$(uname -r).img.backup [ make
backup ] <br clear="none">
# mkinitrd -v -f initrd-$(uname -r).img <br clear="none">
# reboot ( to boot to new initramfs ) <br clear="none">
<br clear="none">
RHEL 6: <br clear="none">
<br clear="none">
same as above with small corrections ;) <br clear="none">
<br clear="none">
</tt><br clear="none">
<tt><tt># cd /boot<br clear="none">
# cp initramfs-$(uname -r).img initramfs-$(uname -r).img.backup
[ make backup ] <br clear="none">
# dracut -v -f initramfs-$(uname -r).img <br clear="none">
# reboot ( to boot to new initramfs ) <br clear="none">
<br clear="none">
</tt></tt><br clear="none">
<tt><tt><tt> good reading <a rel="nofollow" shape="rect" class="yiv0668673228moz-txt-link-freetext" target="_blank" href="https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/5/html/DM_Multipath/config_file_blacklist.html">https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/5/html/DM_Multipath/config_file_blacklist.html</a>
</tt> <br clear="none">
<br clear="none">
hope this helps <br clear="none">
<br clear="none">
Kind regards, <br clear="none">
</tt><br clear="none">
</tt>
<pre class="yiv0668673228moz-signature">--
Elvir Kuric, Senior Technical Support Engineer / Red Hat / GSS EMEA / </pre>
</div></div><br clear="none"><div class="yiv0668673228yqt1326583840" id="yiv0668673228yqt38721">-- <br clear="none">Linux-cluster mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:Linux-cluster@redhat.com" target="_blank" href="mailto:Linux-cluster@redhat.com">Linux-cluster@redhat.com</a><br clear="none"><a rel="nofollow" shape="rect" target="_blank" href="https://www.redhat.com/mailman/listinfo/linux-cluster">https://www.redhat.com/mailman/listinfo/linux-cluster</a></div><br clear="none"><br clear="none"></div></div> </div> </div> </div> </div></div></div></div></body></html>