<p dir="ltr">Hi Peter,</p>
<p dir="ltr">On Aug 26, 2014 2:18 AM, "Peter Auyeung" <<a href="mailto:pauyeung@shopzilla.com">pauyeung@shopzilla.com</a>> 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</p>
<p dir="ltr">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.</p>
<p dir="ltr">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.<br>
<a href="http://blogs.vmware.com/workstation/2012/02/vmware-workstation-8-as-an-alternative-to-vmware-server.html">http://blogs.vmware.com/workstation/2012/02/vmware-workstation-8-as-an-alternative-to-vmware-server.html</a></p>
<p dir="ltr">-Mike</p>
<p dir="ltr">> On Aug 25, 2014, at 9:28 PM, "Chandrahasa S" <<a href="mailto:chandrahasa.s@tcs.com">chandrahasa.s@tcs.com</a>> 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" <<a href="mailto:jheim@math.wisc.edu">jheim@math.wisc.edu</a>> <br>
>> To: Chandrahasa S <<a href="mailto:chandrahasa.s@tcs.com">chandrahasa.s@tcs.com</a>>, <a href="mailto:gluster-users@gluster.org">gluster-users@gluster.org</a> <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 <<a href="mailto:bturner@redhat.com">bturner@redhat.com</a>> <br>
>> To: Juan José Pavlik Salles <<a href="mailto:jjpavlik@gmail.com">jjpavlik@gmail.com</a>> <br>
>> Cc: <a href="mailto:gluster-users@gluster.org">gluster-users@gluster.org</a> <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: <a href="mailto:gluster-users-bounces@gluster.org">gluster-users-bounces@gluster.org</a> <br>
>> ________________________________<br>
>><br>
>><br>
>><br>
>> ----- Original Message -----<br>
>> > From: "Juan José Pavlik Salles" <<a href="mailto:jjpavlik@gmail.com">jjpavlik@gmail.com</a>><br>
>> > To: <a href="mailto:gluster-users@gluster.org">gluster-users@gluster.org</a><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 - <a href="http://viviendolared.blogspot.com">http://viviendolared.blogspot.com</a><br>
>> > <br>
>> > _______________________________________________<br>
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