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mcwill
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v6 WAN Replication - Wow!

Post by mcwill » Nov 30, 2011 12:54 pm

I've been happily using Veeam for over a year now and in the whole have found it to work very well in producing backups, but one area that has always been troublesome is sending the information off site. It didn't matter if we tried Push or Pull, replication or backup we weren't able to find a viable option to send nightly backups off-site using Veeam at a reasonable speed. We would instead backup locally and use a simple rsync job to replicate to remote storage.

That is all changed now, I've just run some tests on the new v6 replication system and I'm very impressed, after seeding a small VM I made some changes on the VM and re-ran the replication job. I was both suprised and pleased to see the second run still saturated the link to the remote site.

Thanks for a major improvement.
Iain

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Re: v6 WAN Replication - Wow!

Post by Gostev » Nov 30, 2011 8:59 pm

Thanks for your feedback, Iain.

When we ran customers' survey half a year ago on tape vs. offsite backup, we have heard it loud and clear that offsite backup and replication is highly desired by our current customer base. However, we also found that most customers are very limited on WAN link bandwidth. Which is why we have put the focus into WAN optimizations with this release.

We are seeing the same improvement in our production too. The performance improvement is almost by an order of magnitude - I had some numbers in my section of weekly forum's digest email couple of weeks ago.

I would be very interested to hear some specifics about your deployment once you get it all going. What WAN link speed you are using, what latency it has, how much are you backing up over WAN, whether you are using any WAN accelerators on top of Veeam (as internally we do not), and of course some numbers.

If anyone else wants to chime in and post their numbers too - please do - I think this information would be interesting to everyone assessing offsite backup and replication.

Thanks.

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Re: v6 WAN Replication - Wow!

Post by vmexpert » Nov 30, 2011 9:44 pm

I am having superb results as well with my initial testing. Even funny how veeam never mentions "cloud" backup and replication once in any v6 materials. Most vendors nowadays seem to have all of their marketing stuffed with "cloud" - without doing much to actually facilitate cloud DR. I would expect veeam to be all over"cloud" too, especially now.

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Re: v6 WAN Replication - Wow!

Post by Daveyd » Nov 30, 2011 9:49 pm

vmexpert wrote:I am having superb results as well with my initial testing. Even funny how veeam never mentions "cloud" backup and replication once in any v6 materials. Most vendors nowadays seem to have all of their marketing stuffed with "cloud" - without doing much to actually facilitate cloud DR. I would expect veeam to be all over"cloud" too, especially now.
I'm sure it's only a matter of time before they put the "cloud" into their advertisements. Personally, I cant stand the word anymore!!!

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Re: v6 WAN Replication - Wow!

Post by rvopat » Nov 30, 2011 9:51 pm

can you please elaborate on the Superb results?

We are currently running veeam 5 in our dr site and pulling our replicas over a 6 mb wan link

last night there was a sql vm that had 10 gb of data changes and it took about 8hrs and 22 min

can you offer some details on your data size and speed and time?

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Re: v6 WAN Replication - Wow!

Post by Gostev » Nov 30, 2011 9:59 pm

vmexpert wrote:I would expect veeam to be all over"cloud" too, especially now.
Cloud is not cool. :D

Seriously though, the word is way too abused by the industry these days. Everyone claims to do something for the cloud. It's hard to find a better way to make the value proposition extremely vague than to use "cloud". We prefer to explain exactly what we do, and in simple terms that you cannot read otherwise. Check out the What's New for v6, you will find very specific and technical explanation of what we did to improve backup and replication over WAN. We worry about building the best technology, and let our customers decide how best to use - whether you want to backup to your remote office (some would say "private cloud"), or replicate to a service provider environment (aka "public cloud").

By the way, DR via backup or replication to a service provider environments definitely seem to become increasingly popular these days... last month, we have reached 1000 of service provider partners using our products - and many of them provide their customers with backup and replication targets. I had meetings with a couple of them in Vegas during VMworld 2011, and it was an eye opener for me.

On a side note - hope this makes you smile - at VMworld 2011, where every other banner had "cloud" written on it, Veeam Backup & Replication v6 won the Best New Technology (sic!) award without mentioning word "cloud" once in the submission :D

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Re: v6 WAN Replication - Wow!

Post by vmexpert » Nov 30, 2011 10:08 pm

rvopat wrote:can you please elaborate on the Superb results?

We are currently running veeam 5 in our dr site and pulling our replicas over a 6 mb wan link

last night there was a sql vm that had 10 gb of data changes and it took about 8hrs and 22 min

can you offer some details on your data size and speed and time?
I will be sure to share my results here once I go production use, but it is clear that my offsite backups are roughly 5 times faster now.

Did some quick math with your numbers, and they look very reasonable (for v5)... in the end, there is only as much data as you can pipe through the 6mbps link in 8 hours - those 10 gigs of uncompressed data must be physically transported over WAN. By all means, you should upgrade to v6 ASAP - the improvement will be massive! You will thank me later <g>

Also, frankly, I would consider 6mbps as "very slow" even for home use... this is hardly enough to even watch HD via Apple TV. You definitely need to consider investing in your WAN links in this "cloudy" world <g> especially if you are serious about protecting high change rate workloads such as SQL.

By the way, are you using "WAN" optmization in the advanced job settings?

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Re: v6 WAN Replication - Wow!

Post by mike143 » Nov 30, 2011 10:12 pm

Rep with ATT "Major Account Manager National Business Markets" described ATT provided voice mail as "IN THE CLOUD......". This was in reference of roll over lines and if last line in roll over was dialed directly but busy would it roll to one of the other unused lines. Every time I hear the word CLOUD it makes me cringe. Unless its: "Look at that cloud it looks like a T-Rex".

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Re: v6 WAN Replication - Wow!

Post by Gostev » Nov 30, 2011 10:18 pm

rvopat wrote:We are currently running veeam 5 in our dr site and pulling our replicas over a 6 mb wan link
Comparing to v5 pull replication, you should get up to 10x performance improvement by upgrading to v6 and leveraging the advanced replication.

About 3-4x should come from the network traffic compression (there is no compression with v5 pull replication).
About 2x should come from better utilization of your WAN link (which now looks to be only 50% utilized, unless I failed in math).
Plus some additional improvements from the data transfer protocol optimizations.

Our IT team is backing up a part of our production environment over Atlantic via WAN link throttled to 6Mbps (exactly your scenario). With v6, they are protecting VMs that "v5 could not even touch" (a quote from our backup admin).

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Re: v6 WAN Replication - Wow!

Post by jpaul » Dec 01, 2011 3:08 am

I just posted this on my blog... http://jpaul.me/?p=2718

It describes the layout differences in v6 compared to v5

Gostev... If I don't have anything right in my post let me know

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Re: v6 WAN Replication - Wow!

Post by ctchang » Dec 01, 2011 8:54 am

Anton,

Do we have to upgrade to ESXi 5 in order to enjoy this 10x replication?
Does B&R v6 replication x10 improvement apply to ESX 4.1 as well?

Thx.

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Re: v6 WAN Replication - Wow!

Post by Vitaliy S. » Dec 01, 2011 9:20 am

The new replication engine works no matter of what vSphere version you're running on your source and target servers, or host type (ESX or ESXi)

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Re: v6 WAN Replication - Wow!

Post by Gostev » Dec 01, 2011 4:43 pm

jpaul wrote:Gostev... If I don't have anything right in my post let me know
Hi Justin - this looks to be great v6 replication 101, added this to FAQ as well. Thank you!

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Re: v6 WAN Replication - Wow!

Post by mcwill » Dec 02, 2011 9:47 am

There was a request for some real world figures, we have now performed our first replication after setting up all the replicas at the remote site.

The link is approx 20Mbs (fibre at main site - ADSL at DR site), latency 13-16ms.

The Replication Job was for 24 VM with a total size of 575 GB which took 91 minutes which is less than 4 minutes per VM!
Other stats for the run are Data Read = 46.4GB and Data Transferred = 2.5GB

Compare this to the setup we had before of backing up locally then running rsync to replacte the backups over the same link. Ignoring the time to generate the backups, the rsync job would normally take 3 hours and transfer 14GB of data.

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Re: v6 WAN Replication - Wow!

Post by Gostev » Dec 02, 2011 1:31 pm

Thanks Ian, great improvement. Curious if you rsynced backups before, why did you decide to switch to replication with v6 (versus doing backup over WAN)?

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