Hi Brian,<div>DRBD proxy is paid stuff. How much does it cost and who to contact. I am new player working in very low budget with the customer.For multiple installation of proxy , may be we can come to a feasible deal. Whom can i talk on that?</div>
<div>Papu <br><br><div class="gmail_quote">On Tue, Feb 21, 2012 at 1:25 AM, <span dir="ltr"><<a href="mailto:drbd-user-request@lists.linbit.com">drbd-user-request@lists.linbit.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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Today's Topics:<br>
<br>
1. Re: Activity-log. (Brian R. Hellman)<br>
2. Re: drbd stuck in WFbitmaps state in WAN link (Brian R. Hellman)<br>
3. Re: Backing up VMware VM's running DRBD with VMware Data<br>
Recovery (VDR) (Andreas Kurz)<br>
4. IO error when mounting device (Lawrence Strydom)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Mon, 20 Feb 2012 08:13:07 -0800<br>
From: "Brian R. Hellman" <<a href="mailto:brian@linbit.com">brian@linbit.com</a>><br>
Subject: Re: [DRBD-user] Activity-log.<br>
To: <a href="mailto:drbd-user@lists.linbit.com">drbd-user@lists.linbit.com</a><br>
Message-ID: <<a href="mailto:4F427113.5040200@linbit.com">4F427113.5040200@linbit.com</a>><br>
Content-Type: text/plain; charset=ISO-8859-1<br>
<br>
<br>
<br>
On 02/19/2012 10:56 PM, venkatesh prabhu wrote:<br>
><br>
> version: 8.0.14 (api:86/proto:88)<br>
> GIT-hash: bb447522fc9a87d0069b7e14f0234911ebdab0f7 build by attR<br>
> 2008-11-12 16:40:33<br>
> 0: cs:WFConnection st:Primary/Unknown ds:UpToDate/DUnknown C r---<br>
> ns:0 nr:0 dw:3669188 dr:236129 al:144 bm:17 lo:0 pe:0 ua:0 ap:0<br>
><br>
For your sanity and everyone's around you using this system, _please_<br>
upgrade! :)<br>
<br>
If you need any justification see:<br>
<a href="http://git.drbd.org/?p=drbd-8.3.git;a=blob;f=ChangeLog;hb=HEAD" target="_blank">http://git.drbd.org/?p=drbd-8.3.git;a=blob;f=ChangeLog;hb=HEAD</a><br>
<br>
<br>
Best regards,<br>
Brian<br>
<br>
--<br>
<br>
: Brian Hellman<br>
: LINBIT | "Your Way to High Availability"<br>
: 1-877-4-LINBIT<br>
: Web: <a href="http://www.linbit.com" target="_blank">http://www.linbit.com</a><br>
:<br>
: Twitter: <a href="http://www.linbit.com/en/twitter" target="_blank">http://www.linbit.com/en/twitter</a><br>
: Facebook: <a href="http://www.linbit.com/en/facebook" target="_blank">http://www.linbit.com/en/facebook</a><br>
<br>
<br>
<br>
------------------------------<br>
<br>
Message: 2<br>
Date: Mon, 20 Feb 2012 08:20:04 -0800<br>
From: "Brian R. Hellman" <<a href="mailto:brian@linbit.com">brian@linbit.com</a>><br>
Subject: Re: [DRBD-user] drbd stuck in WFbitmaps state in WAN link<br>
To: <a href="mailto:drbd-user@lists.linbit.com">drbd-user@lists.linbit.com</a><br>
Message-ID: <<a href="mailto:4F4272B4.6000303@linbit.com">4F4272B4.6000303@linbit.com</a>><br>
Content-Type: text/plain; charset=ISO-8859-1<br>
<br>
<br>
<br>
On 02/18/2012 06:58 AM, papu bhattacharya wrote:<br>
> Hi All,<br>
> I have successfully setup a DRBD setup between two server in my lan<br>
> setup. The speed is 100 Mbps. The next staage was to do a DR setup<br>
> with wan link. The WAN link speed is 2Mbps. In wan link , i see the<br>
> DRBD is stuck in WFBitmaps state. Whenever i change the link , it<br>
> works fine, but in my wan L2 link , it is always stuck in WFBitmaps.<br>
> As i search the different forums , i see that most potential reason<br>
> could be the MTU size of the link. Does MTU size really matters? My<br>
> wan link MTU size is 1500 default and it does not support zumbo frame.<br>
> Is there any option that can make DRBD to work in 1500 MTU size.<br>
><br>
> Thanks in advance.<br>
<br>
Hi Papu,<br>
<br>
Once you apply the use-rle as suggested, you may run into other<br>
performance issues depending on the amount of traffic and latency. If<br>
you do, you may want to give DRBD Proxy a try since it was designed<br>
specifically for this type of scenario.<br>
<br>
Good luck with your setup,<br>
Brian<br>
<br>
><br>
><br>
><br>
> _______________________________________________<br>
> drbd-user mailing list<br>
> <a href="mailto:drbd-user@lists.linbit.com">drbd-user@lists.linbit.com</a><br>
> <a href="http://lists.linbit.com/mailman/listinfo/drbd-user" target="_blank">http://lists.linbit.com/mailman/listinfo/drbd-user</a><br>
<br>
--<br>
<br>
: Brian Hellman<br>
: LINBIT | "Your Way to High Availability"<br>
: 1-503-573-1262 x202 | 1-877-4-LINBIT<br>
: Web: <a href="http://www.linbit.com" target="_blank">http://www.linbit.com</a><br>
:<br>
: Twitter: <a href="http://www.linbit.com/en/twitter" target="_blank">http://www.linbit.com/en/twitter</a><br>
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<br>
<br>
------------------------------<br>
<br>
Message: 3<br>
Date: Mon, 20 Feb 2012 20:32:39 +0100<br>
From: Andreas Kurz <<a href="mailto:andreas@hastexo.com">andreas@hastexo.com</a>><br>
Subject: Re: [DRBD-user] Backing up VMware VM's running DRBD with<br>
VMware Data Recovery (VDR)<br>
To: <a href="mailto:drbd-user@lists.linbit.com">drbd-user@lists.linbit.com</a><br>
Message-ID: <<a href="mailto:4F429FD7.9080404@hastexo.com">4F429FD7.9080404@hastexo.com</a>><br>
Content-Type: text/plain; charset="iso-8859-1"<br>
<br>
Hello,<br>
<br>
On 02/17/2012 10:28 AM, Mark Watts wrote:<br>
><br>
> I have a pair of CentOS 5.7 VM's running an LVM/DRBD/EXT3 Pri/Sec cluster.<br>
><br>
> Since we use VDR to take snapshots of our VM's I naturally added these<br>
> two VM's to the backup rota.<br>
<br>
So you installed latest VMware tools to the VMs and you are sure they<br>
are running?<br>
<br>
><br>
> Pretty much every night I get hundreds of errors in the VDR logs<br>
> relating to the Primary, giving the message:<br>
><br>
> "Failed to create snapshot for VDR01, error -3960 ( cannot quiesce<br>
> virtual machine)"<br>
<br>
Any logs from vmware-tools in the VM?<br>
<br>
Regards,<br>
Andreas<br>
<br>
--<br>
Need help with DRBD?<br>
<a href="http://www.hastexo.com/now" target="_blank">http://www.hastexo.com/now</a><br>
<br>
><br>
><br>
> I'm taking a wild guess at this perhaps being related to DRBD; can<br>
> anyone suggest whether this is the issue.<br>
><br>
><br>
> Mark.<br>
><br>
> _______________________________________________<br>
> drbd-user mailing list<br>
> <a href="mailto:drbd-user@lists.linbit.com">drbd-user@lists.linbit.com</a><br>
> <a href="http://lists.linbit.com/mailman/listinfo/drbd-user" target="_blank">http://lists.linbit.com/mailman/listinfo/drbd-user</a><br>
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<br>
Message: 4<br>
Date: Fri, 17 Feb 2012 11:15:45 +0200<br>
From: Lawrence Strydom <<a href="mailto:lawrence@junkmail.co.za">lawrence@junkmail.co.za</a>><br>
Subject: [DRBD-user] IO error when mounting device<br>
To: drbd-user <<a href="mailto:drbd-user@lists.linbit.com">drbd-user@lists.linbit.com</a>><br>
Message-ID: <<a href="mailto:4F3E1AC1.6080006@junkmail.co.za">4F3E1AC1.6080006@junkmail.co.za</a>><br>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"<br>
<br>
Hi List,<br>
<br>
I used DRBD in dual primary mode with ocfs2 for my load balancing web<br>
server cluster. I didn't encounter any errors during setup and when I<br>
put the web site on the DRBD device on the primary node, it replicated<br>
without any errors. It has been running fine during the week of testing<br>
but this morning when we updated code located on the DRBD device we<br>
noticed it was not replicating to the secondary node.<br>
the DRBD device was mounted on both nodes but /proc/drbd output this:<br>
<br>
*version: 8.3.7 (api:88/proto:86-91)<br>
GIT-hash: ea9e28dbff98e331a62bcbcc63a6135808fe2917 build by<br>
<a href="mailto:root@web01.junkmail.co.za">root@web01.junkmail.co.za</a>, 2012-01-10 09:54:40<br>
0: cs:StandAlone ro:Primary/Unknown ds:UpToDate/DUnknown r----<br>
ns:0 nr:0 dw:5960937 dr:5047235 al:1490 bm:1363 lo:0 pe:0 ua:0 ap:0<br>
ep:1 wo:b oos:8840028*<br>
<br>
<br>
I restarted drbd and ocfs2 but still the result was the same. Next I<br>
rebooted the misbehaving node and noticed when it came back up that the<br>
DRBD device was no longer mounted.<br>
<br>
Trying to mount the device manually returns this error:<br>
*mount /dev/drbd0<br>
mount.ocfs2: I/O error on channel while opening device /dev/drbd0*<br>
<br>
<br>
A tail of the log file shows nothing but an earlier entry shows this:<br>
<br>
*Feb 17 10:47:54 web02 kernel: [ 13.531600] block drbd0: disk(<br>
Attaching -> UpToDate )<br>
Feb 17 10:47:54 web02 kernel: [ 13.535865] block drbd0: conn(<br>
StandAlone -> Unconnected )<br>
Feb 17 10:47:54 web02 kernel: [ 13.535889] block drbd0: Starting<br>
receiver thread (from drbd0_worker [1484])<br>
Feb 17 10:47:54 web02 kernel: [ 13.535998] block drbd0: receiver<br>
(re)started<br>
Feb 17 10:47:54 web02 kernel: [ 13.536006] block drbd0: conn(<br>
Unconnected -> WFConnection )<br>
<br>
<br>
*This is my r1.res file:<br>
<br>
*===============================================================<br>
resource r1 {<br>
meta-disk internal;<br>
device /dev/drbd0;<br>
disk /dev/vol01/docroot;<br>
<br>
syncer { rate 1000M; }<br>
net {<br>
allow-two-primaries;<br>
after-sb-0pri discard-zero-changes;<br>
after-sb-1pri discard-secondary;<br>
after-sb-2pri disconnect;<br>
}<br>
startup { become-primary-on both; }<br>
<br>
on <a href="http://web01.junkmail.co.za" target="_blank">web01.junkmail.co.za</a> { address <a href="http://10.0.0.111:7789" target="_blank">10.0.0.111:7789</a>; }<br>
on <a href="http://web02.junkmail.co.za" target="_blank">web02.junkmail.co.za</a> { address <a href="http://10.0.0.112:7789" target="_blank">10.0.0.112:7789</a>; }<br>
}*<br>
*===============================================================*<br>
<br>
<br>
<br>
Here is /etc/ocfs2/cluster.conf:<br>
<br>
===============================================================<br>
*cluster:<br>
node_count = 2<br>
name = jbm_web<br>
<br>
node:<br>
ip_port = 7777<br>
ip_address = 10.0.0.111<br>
number = 1<br>
name = web01<br>
cluster = jbm_web<br>
<br>
node:<br>
ip_port = 7777<br>
ip_address = 10.0.0.112<br>
number = 2<br>
name = web02<br>
cluster = jbm_web<br>
================================================================<br>
<br>
<br>
<br>
*Any help/ideas much appreciated - the pressure is on here.<br>
<br>
Thanks<br>
*<br>
<br>
<br>
<br>
*<br>
*-- *<br>
*Lawrence Strydom*<br>
*Linux System Administrator*<br>
Junk Mail Publishing Group<br>
Tel : (+27) 12 342 3840 Ext 2811<br>
Fax : 0000<br>
Email : <a href="mailto:lawrence@junkmail.co.za">lawrence@junkmail.co.za</a><br>
<br>
<br>
<br>
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End of drbd-user Digest, Vol 91, Issue 40<br>
*****************************************<br>
</blockquote></div><br></div>