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<DIV>thank Michael,</DIV>
<DIV> </DIV>
<DIV>This is my second step, I will change the lnet with “options lnet
networks=tcp0(bond0,bond1)” because my machines has 4 nics. I have a bond0 and
bond1 with LACP. I need to comunicate the clients with two network for HA
network. </DIV>
<DIV> </DIV>
<DIV>If the bond0 network is down, the clients can reach the OSS by the second
network bond1.</DIV>
<DIV> </DIV>
<DIV>If I change the modprobe with “options lnet
networks=tcp0(bond0),tcp1(bond1)”, how the clients mount the filesystem to reach
the OSS by two network?</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
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style="FONT-SIZE: small; FONT-FAMILY: 'Calibri'; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; TEXT-DECORATION: none; DISPLAY: inline">
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<DIV> </DIV>
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A title=shuey@purdue.edu
href="mailto:shuey@purdue.edu">Michael Shuey</A> </DIV>
<DIV><B>Sent:</B> Tuesday, June 25, 2013 2:14 PM</DIV>
<DIV><B>To:</B> <A title=alfonso.pardo@ciemat.es
href="mailto:alfonso.pardo@ciemat.es">Alfonso Pardo</A> </DIV>
<DIV><B>Cc:</B> <A title=lustre-discuss@lists.lustre.org
href="mailto:lustre-discuss@lists.lustre.org">lustre-discuss@lists.lustre.org</A>
; <A title=WC-Discuss.Migration@intel.com
href="mailto:WC-Discuss.Migration@intel.com">WC-Discuss</A> </DIV>
<DIV><B>Subject:</B> Re: [Lustre-discuss] Lustre over two TCP
interfaces</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style="FONT-SIZE: small; FONT-FAMILY: 'Calibri'; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; TEXT-DECORATION: none; DISPLAY: inline">Different
interfaces need to be declared with different LNET networks - something like
"networks=tcp0(eth0),tcp1(eth1)". Of course, that assumes your clients are
configured to use a mix of tcp0 and tcp1 for connections (with each client only
using one of the two). This is really only useful in corner cases, when
you're doing something strange; if eth0 and eth1 are in the same subnet (as in
your example), this is almost certainly not productive.
<DIV> </DIV>
<DIV>A better bet might be to use a single LNET, and bond the two interfaces
together - either as an active/passive pair, or active/active (e.g.,
LACP). Then you'd declare networks=tcp0(bond0), give the bond a single IP
address, and client traffic would be split across the two members in the bond
more like you probably expect (given the limits of the bond protocol you're
using).<BR>
<DIV>
<DIV> </DIV>
<DIV>--<BR>Mike Shuey</DIV><BR><BR>
<DIV class=gmail_quote>On Tue, Jun 25, 2013 at 8:06 AM, Alfonso Pardo <SPAN
dir=ltr><<A href="mailto:alfonso.pardo@ciemat.es"
target=_blank>alfonso.pardo@ciemat.es</A>></SPAN> wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV dir=ltr>
<DIV dir=ltr>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'">
<DIV>hello friends,</DIV>
<DIV> </DIV>
<DIV>I need to comunicate my OSS by two ethernet TCP interfaces: eth0 and
eth1.</DIV>
<DIV> </DIV>
<DIV>I have configured this feature in my modprobe.d with:</DIV>
<DIV> </DIV>
<DIV>“options lnet networks=tcp0(eth0,eth1)”</DIV>
<DIV> </DIV>
<DIV>And I can see two interfaces with: </DIV>
<DIV> </DIV>
<DIV>lctl --net tcp interface_list</DIV>
<DIV><A href="http://sa-d4-01.ceta-ciemat.es"
target=_blank>sa-d4-01.ceta-ciemat.es</A>: (<A
href="http://192.168.11.15/255.255.255.0"
target=_blank>192.168.11.15/255.255.255.0</A>) npeer 0 nroute 2</DIV>
<DIV><A href="http://sa-d4-01.ceta-ciemat.es"
target=_blank>sa-d4-01.ceta-ciemat.es</A>: (<A
href="http://192.168.11.35/255.255.255.0"
target=_blank>192.168.11.35/255.255.255.0</A>) npeer 0 nroute 0</DIV>
<DIV> </DIV>
<DIV>But, the clients only can communicate with the first interface:</DIV>
<DIV> </DIV>
<DIV>lctl ping 192.168.11.15</DIV>
<DIV>12345-0@lo</DIV>
<DIV>12345-192.168.11.15@tcp</DIV>
<DIV>lctl ping 192.168.11.35</DIV>
<DIV>failed to ping 192.168.11.35@tcp: Input/output error</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Any suggestions how to “enable” the second interface?</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>thank in advance</DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'">
<P><I><SPAN><SPAN style="FONT-FAMILY: century gothic,sans-serif,10">Alfonso
Pardo Diaz </SPAN></SPAN></I><BR><I><B><SPAN
style="FONT-FAMILY: century gothic,sans-serif">System Administrator /
Researcher </SPAN></B></I><BR><I><SPAN
style="FONT-FAMILY: century gothic,sans-serif">c/ Sola nº 1; 10200 TRUJILLO,
SPAIN </SPAN></I><BR><I><SPAN
style="FONT-FAMILY: century gothic,sans-serif">Tel: <A
href="tel:%2B34%20927%2065%2093%2017" target=_blank value="+34927659317">+34
927 65 93 17</A> Fax: +34 927 32 32 37 </SPAN></I></P>
<P><SPAN><A href="http://www.ceta-ciemat.es/" target=_blank><IMG border=0
alt="CETA-Ciemat logo" width=383 height=76>
</A></SPAN></P></DIV></DIV></DIV>----------------------------
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