<font size=2 face="sans-serif">Dear All,</font>
<br>
<br><font size=2 face="sans-serif">Can we create Active Active NFS using
CTDB, if yes please help with configuration steps.</font>
<br>
<br><font size=2 face="sans-serif">Regards,<br>
Chandrahasa S<br>
</font>
<br>
<br>
<br><font size=1 color=#5f5f5f face="sans-serif">From:
</font><font size=1 face="sans-serif">Michael DePaulo <mikedep333@gmail.com></font>
<br><font size=1 color=#5f5f5f face="sans-serif">To:
</font><font size=1 face="sans-serif">Peter Auyeung <pauyeung@shopzilla.com></font>
<br><font size=1 color=#5f5f5f face="sans-serif">Cc:
</font><font size=1 face="sans-serif">gluster-users <gluster-users@gluster.org>,
Chandrahasa S <chandrahasa.s@tcs.com></font>
<br><font size=1 color=#5f5f5f face="sans-serif">Date:
</font><font size=1 face="sans-serif">08/31/2014 09:47 AM</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Subject:
</font><font size=1 face="sans-serif">Re: [Gluster-users]
Gluster for Vmware</font>
<br>
<hr noshade>
<br>
<br>
<br><font size=3>Hi Peter,</font>
<p><font size=3>On Aug 26, 2014 2:18 AM, "Peter Auyeung" <</font><a href=mailto:pauyeung@shopzilla.com><font size=3 color=blue><u>pauyeung@shopzilla.com</u></font></a><font size=3>>
wrote:<br>
><br>
> You can use ctdb for nfs failover<br>
><br>
> But I do want to know if we can use native glusterfs client for vmware<br>
><br>
> Peter</font>
<p><font size=3>I did done research and it looks like the native GlusterFS
client is not available for ESXi. The primary reason is probably that FUSE
is not available for ESXi.</font>
<p><font size=3>If you do not need all the features of vSphere, you might
try VMware Workstation running in server mode on top of Linux. I'm sure
that will work with GlusterFS.</font><font size=3 color=blue><u><br>
</u></font><a href="http://blogs.vmware.com/workstation/2012/02/vmware-workstation-8-as-an-alternative-to-vmware-server.html"><font size=3 color=blue><u>http://blogs.vmware.com/workstation/2012/02/vmware-workstation-8-as-an-alternative-to-vmware-server.html</u></font></a>
<p><font size=3>-Mike</font>
<p><font size=3>> On Aug 25, 2014, at 9:28 PM, "Chandrahasa S"
<</font><a href=mailto:chandrahasa.s@tcs.com><font size=3 color=blue><u>chandrahasa.s@tcs.com</u></font></a><font size=3>>
wrote:<br>
><br>
>> I am thinking to User Gluster Volume for creation of Data store
in Vmware. <br>
>><br>
>> I can use NFS but I wont get HA and Load balancing like
glusterfs. <br>
>><br>
>> Chandra <br>
>><br>
>><br>
>><br>
>> From: "John G. Heim" <</font><a href=mailto:jheim@math.wisc.edu><font size=3 color=blue><u>jheim@math.wisc.edu</u></font></a><font size=3>>
<br>
>> To: Chandrahasa S <</font><a href=mailto:chandrahasa.s@tcs.com><font size=3 color=blue><u>chandrahasa.s@tcs.com</u></font></a><font size=3>>,
</font><a href="mailto:gluster-users@gluster.org"><font size=3 color=blue><u>gluster-users@gluster.org</u></font></a><font size=3>
<br>
>> Date: 08/25/2014 06:49 PM <br>
>> Subject: Re: [Gluster-users] Gluster
for Vmware <br>
>> ________________________________<br>
>><br>
>><br>
>><br>
>> Do you mean you want to mount a gluster volume on a virtual machine?
You can do that the same way you'd do it on a real machine. You can
probably even create a brick on a virtual machine but I don't see much
point in that. <br>
>><br>
>> But we regularly mount our gluster volume on virtual machines.
We use debian so it's as simple as this:<br>
>><br>
>> 1. service glusterfs-server start<br>
>> 2. mount -t glusterfs localhost:/volumename /mountpoint<br>
>><br>
>><br>
>><br>
>> On 08/25/2014 12:06 AM, Chandrahasa S wrote: <br>
>> Dear All, <br>
>><br>
>> Is there any way to use Glusterfs volume for Vmware environment.
<br>
>><br>
>><br>
>> Chandra. <br>
>><br>
>><br>
>><br>
>> From: Ben Turner <</font><a href=mailto:bturner@redhat.com><font size=3 color=blue><u>bturner@redhat.com</u></font></a><font size=3>>
<br>
>> To: Juan José Pavlik Salles <</font><a href=mailto:jjpavlik@gmail.com><font size=3 color=blue><u>jjpavlik@gmail.com</u></font></a><font size=3>>
<br>
>> Cc: </font><a href="mailto:gluster-users@gluster.org"><font size=3 color=blue><u>gluster-users@gluster.org</u></font></a><font size=3>
<br>
>> Date: 08/22/2014 08:57 PM <br>
>> Subject: Re: [Gluster-users] Gluster
3.5.2 gluster, how does cache work? <br>
>> Sent by: </font><a href="mailto:gluster-users-bounces@gluster.org"><font size=3 color=blue><u>gluster-users-bounces@gluster.org</u></font></a><font size=3>
<br>
>> ________________________________<br>
>><br>
>><br>
>><br>
>> ----- Original Message -----<br>
>> > From: "Juan José Pavlik Salles" <</font><a href=mailto:jjpavlik@gmail.com><font size=3 color=blue><u>jjpavlik@gmail.com</u></font></a><font size=3>><br>
>> > To: </font><a href="mailto:gluster-users@gluster.org"><font size=3 color=blue><u>gluster-users@gluster.org</u></font></a><font size=3><br>
>> > Sent: Thursday, August 21, 2014 4:07:28 PM<br>
>> > Subject: [Gluster-users] Gluster 3.5.2 gluster, how does
cache work?<br>
>> > <br>
>> > Hi guys, I've been reading a bit about caching in gluster
volumes, but I<br>
>> > still don't get a few things. I set up a gluster replica
2 volume like this:<br>
>> > <br>
>> > [root@gluster-test-1 ~]# gluster vol info vol_rep<br>
>> > Volume Name: vol_rep<br>
>> > Type: Replicate<br>
>> > Volume ID: b77db06d-2686-46c7-951f-e43bde21d8ec<br>
>> > Status: Started<br>
>> > Number of Bricks: 1 x 2 = 2<br>
>> > Transport-type: tcp<br>
>> > Bricks:<br>
>> > Brick1: gluster-test-1:/ladrillos/l1/l<br>
>> > Brick2: gluster-test-2:/ladrillos/l1/l<br>
>> > Options Reconfigured:<br>
>> > performance.cache-min-file-size: 90MB<br>
>> > performance.cache-max-file-size: 256MB<br>
>> > performance.cache-refresh-timeout: 60<br>
>> > performance.cache-size: 256MB<br>
>> > [root@gluster-test-1 ~]#<br>
>> > <br>
>> > Then I mounted the volume with gluster client on another
machine. I created<br>
>> > an 80Mbytes file called 80, and here you have the reading
test:<br>
>> > <br>
>> > [root@gluster-client-1 gluster_vol]# dd if=/mnt/gluster_vol/80
of=/dev/null<br>
>> > bs=1M<br>
>> > 80+0 records in<br>
>> > 80+0 records out<br>
>> > 83886080 bytes (84 MB) copied, 1,34145 s, 62,5 MB/s<br>
>> > [root@gluster-client-1 gluster_vol]# dd if=/mnt/gluster_vol/80
of=/dev/null<br>
>> > bs=1M<br>
>> > 80+0 records in<br>
>> > 80+0 records out<br>
>> > 83886080 bytes (84 MB) copied, 0,0246918 s, 3,4 GB/s<br>
>> > [root@gluster-client-1 gluster_vol]# dd if=/mnt/gluster_vol/80
of=/dev/null<br>
>> > bs=1M<br>
>> > 80+0 records in<br>
>> > 80+0 records out<br>
>> > 83886080 bytes (84 MB) copied, 0,0195678 s, 4,3 GB/s<br>
>> > [root@gluster-client-1 gluster_vol]#<br>
>><br>
>> You are seeing the effect of client side kernel caching. If
you want to see the actual throughput for reads run:<br>
>><br>
>> sync; echo 3 > /proc/sys/vm/drop_caches; dd blah<br>
>><br>
>> Kernel caching happens on both the client and server side, when
I want to see uncached performance I drop caches on both clients and servers:<br>
>><br>
>> run_drop_cache()<br>
>> {<br>
>> for host in $MASTERNODE $NODE $CLIENT<br>
>> do<br>
>> ssh -i /root/.ssh/my_id root@${host} echo
"Dropping cache on $host"<br>
>> ssh -i /root/.ssh/my_id root@${host} sync<br>
>> ssh -i /root/.ssh/my_id root@${host} "echo
3 > /proc/sys/vm/drop_caches"<br>
>> done<br>
>> }<br>
>><br>
>> HTH!<br>
>><br>
>> -b<br>
>><br>
>> > Cache is working flawlessly, (even though that 80 Mbytes
is smaller than the<br>
>> > min-file-size value, but I don't care about it right now)
what I don't get<br>
>> > is where cache is being stored. Is it stored on the client
side or on the<br>
>> > server side? According to documentation, the io-cache translator
could be<br>
>> > loaded on both sides (client and server), how can I know
where it is being<br>
>> > loeaded? It looks like as it was being stored locally because
of the speed,<br>
>> > but I'd like to be sure.<br>
>> > <br>
>> > Thanks!<br>
>> > <br>
>> > --<br>
>> > Pavlik Salles Juan José<br>
>> > Blog - </font><a href=http://viviendolared.blogspot.com/><font size=3 color=blue><u>http://viviendolared.blogspot.com</u></font></a><font size=3><br>
>> > <br>
>> > _______________________________________________<br>
>> > Gluster-users mailing list<br>
>> > </font><a href="mailto:Gluster-users@gluster.org"><font size=3 color=blue><u>Gluster-users@gluster.org</u></font></a><font size=3><br>
>> > </font><a href="http://supercolony.gluster.org/mailman/listinfo/gluster-users"><font size=3 color=blue><u>http://supercolony.gluster.org/mailman/listinfo/gluster-users</u></font></a><font size=3><br>
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<p>