Comprehensive data protection for all workloads
Post Reply
Yuki
Veeam ProPartner
Posts: 252
Liked: 26 times
Joined: Apr 05, 2011 11:44 pm
Contact:

Reverse incremental performance on Raid 5 vs Raid 10

Post by Yuki »

Hi all,
I wanted to see if anyone had done any benchmarks on their storage repositories at different RAID levels. Most of our storage used for backups is RAID5 in order to get the most space, but performance isn't always great. Has anyone done any testing on RAID10 vs RAID10 on reverse incremental runs?

Generally RAID10 should provide better performance, but not sure how this relates to Veeam's I/O requirements.
Gostev
Chief Product Officer
Posts: 31460
Liked: 6648 times
Joined: Jan 01, 2006 1:01 am
Location: Baar, Switzerland
Contact:

Re: Reverse incremental performance on Raid 5 vs Raid 10

Post by Gostev » 1 person likes this post

I have not tested myself, but heard many times from end users that moving to RAID10 significantly improved reversed incremental performance for them.
chrisdearden
Veteran
Posts: 1531
Liked: 226 times
Joined: Jul 21, 2010 9:47 am
Full Name: Chris Dearden
Contact:

Re: Reverse incremental performance on Raid 5 vs Raid 10

Post by chrisdearden » 1 person likes this post

RAID 10 all the way - given a reverse incremental has somethign like a 75:25 Write:read i/o profile , you have much less of a write penalty with RAID10 than you would have with RAID 5, so for a given number of spindles you can get more usable IO ( at the expense of capacity )
Yuki
Veeam ProPartner
Posts: 252
Liked: 26 times
Joined: Apr 05, 2011 11:44 pm
Contact:

Re: Reverse incremental performance on Raid 5 vs Raid 10

Post by Yuki »

Excellent, thanks guys!
xchose
Novice
Posts: 4
Liked: never
Joined: Aug 15, 2013 7:44 am
Full Name: Chose Carreras

[MERGED] : First VEAM - disk configuration RAID

Post by xchose »

Hi guys,

I am pretty new with VEAM backup. So I would like to ask few question about BEST PRACTICIES.
I have Areca RAID driver with 14 - 3T disks. I would like to install Windows 2012 and VEAM BAckup.

What is the best disk configuration. What is recomended RAID level and do you think that is good idea to separete 2 disk in raid 1 for windows OS only?
Thanks for help, links etc.

Martin
veremin
Product Manager
Posts: 20270
Liked: 2252 times
Joined: Oct 26, 2012 3:28 pm
Full Name: Vladimir Eremin
Contact:

Re: Reverse incremental performance on Raid 5 vs Raid 10

Post by veremin » 1 person likes this post

H, Martin.

Assuming that you’re going to use this server as a backup repository, it stands to reason so specify RAID 10, since both 5 and 6 has a certain IOP penalty, which might result in decreased backup performance, especially, if reversed incremental is being used.

Thanks.
foggy
Veeam Software
Posts: 21069
Liked: 2115 times
Joined: Jul 11, 2011 10:22 am
Full Name: Alexander Fogelson
Contact:

Re: Reverse incremental performance on Raid 5 vs Raid 10

Post by foggy » 1 person likes this post

And there are a couple more of existing topics regarding RAID level recommendations, worth reviewing:
RAID6 or RAID10 for backup storage on local disk array?
NAS RAID level

Thanks.
davidb1234
Expert
Posts: 162
Liked: 15 times
Joined: Nov 15, 2011 8:47 pm
Full Name: David Borden
Contact:

Re: Reverse incremental performance on Raid 5 vs Raid 10

Post by davidb1234 » 1 person likes this post

I just finished migrating from RAID 6 SATA disk enclosures to RAID 10 8GB SAN volumes for Veeam repositories in our primary backup site. First Full Active Backup Speeds did not increase but the nightly reverse incrementals are 20-40% faster and we run 3-4 jobs at a time vs 1 job at a time and our storage doesn't flinch. Previously running multiple jobs and using virtual lab features was terrible performance on the RAID 6 locally attached SATA enclosures. We had 12 Spindles in our RAID6. We have 12 spindles in our RAID 10. Obviously we lost lots of space but the tradeoff was worth it for our primary backup storage.

I am looking forward to testing the virtual lab stuff as I am sure that will be much faster as well.
foggy
Veeam Software
Posts: 21069
Liked: 2115 times
Joined: Jul 11, 2011 10:22 am
Full Name: Alexander Fogelson
Contact:

Re: Reverse incremental performance on Raid 5 vs Raid 10

Post by foggy »

David, thanks for sharing the numbers, much appreciated. They perfectly confirm general recommendations.
kte
Expert
Posts: 179
Liked: 8 times
Joined: Jul 02, 2013 7:48 pm
Full Name: Koen Teugels
Contact:

Re: Reverse incremental performance on Raid 5 vs Raid 10

Post by kte »

Any MB/s maesurements , that you won by moving from raid 5 to raid 10 ??
Because I now have a veeam backup server 8 core 32 GB ram aadn local disks 2x 450GB raid10 OS + 10 4TB disk RAiD6 + hotspare
I can do a local copy on the server SATA disk of a 160 GB file in 8m35 seconds so arroun 310 MB/s read and write
Is this bad or ..??
The bottleneck in a direct san connection setup is still source , somethimes the proxy is going above 90 % ( processing rate was the 2 GB/s for an incr backup), but I never saw a target more the 10 %

K
foggy
Veeam Software
Posts: 21069
Liked: 2115 times
Joined: Jul 11, 2011 10:22 am
Full Name: Alexander Fogelson
Contact:

Re: Reverse incremental performance on Raid 5 vs Raid 10

Post by foggy »

kte wrote: The bottleneck in a direct san connection setup is still source , somethimes the proxy is going above 90 % ( processing rate was the 2 GB/s for an incr backup), but I never saw a target more the 10 %
That means that the source disk reader component is the "weakest" point in the data processing conveyor and the following stages are waiting for it to provide data, while the source disk reader spends all of the time reading the data.

So no need to worry about your target storage performance until you decide to upgrade the source component and the bottleneck moves to target. (However, you are still getting pretty good speeds with the current setup so not sure whether you need to change something, there always will be a bottleneck, in any setup.)
edfops
Enthusiast
Posts: 37
Liked: 6 times
Joined: Feb 13, 2014 8:17 pm

[MERGED] RAID suggestion

Post by edfops » 1 person likes this post

We have 72 1.2TB SAS drives (over three DAS arrays), how might these be best configured for reverse incrementals backup jobs? Due to the space penalty with Raid10, that does not seem viable.

Current debate is between multiple Raid50 (for the better drive rebuild times) or Raid6 sets.

Anyone have similar experiences out there?

edit: not sure why this was merged, this is not a discussion on Raid 5 vs. Raid 10 but Raid 50 vs. Raid 6
foggy
Veeam Software
Posts: 21069
Liked: 2115 times
Joined: Jul 11, 2011 10:22 am
Full Name: Alexander Fogelson
Contact:

Re: Reverse incremental performance on Raid 5 vs Raid 10

Post by foggy »

You can find some helpful considerations in this thread as well as in the topics mentioned above.
mcvosi
Enthusiast
Posts: 65
Liked: 8 times
Joined: Jun 14, 2011 1:55 pm
Full Name: Matthew Vaughan
Contact:

[MERGED] Veeam server config

Post by mcvosi »

I have a JBOD enclosure with sixteen 3 TB drives in it. I'd like to use this for backups; connection will be SAS. Any recommendations on the config for the drives?
foggy
Veeam Software
Posts: 21069
Liked: 2115 times
Joined: Jul 11, 2011 10:22 am
Full Name: Alexander Fogelson
Contact:

Re: Reverse incremental performance on Raid 5 vs Raid 10

Post by foggy »

Matthew, please review the thread above, as well as another existing topic discussing recommended RAID configurations. Should help.
albertwt
Veeam Legend
Posts: 879
Liked: 46 times
Joined: Nov 05, 2009 12:24 pm
Location: Sydney, NSW
Contact:

[MERGED] Strip Size and RAID level question ?

Post by albertwt »

Hi All,

which one is the best option to store large VM backup that is using forever Forward Incremental on a very large LUN that is 20TB+ ?
Size 27.2 TiB
RAID Level RAID 6 (ADG)
Legacy Disk Geometry (C/H/S) 65535 / 255 / 32
Strip Size / Full Stripe Size 128 KiB / 2944 KiB
Size 33 TiB
RAID Level RAID 5
Legacy Disk Geometry (C/H/S) 65535 / 255 / 32
Strip Size / Full Stripe Size 256 KiB / 2816 KiB
I'm using VBR 9.0 U1 to store 150+ VMs backup in 25 backup job.
--
/* Veeam software enthusiast user & supporter ! */
Gostev
Chief Product Officer
Posts: 31460
Liked: 6648 times
Joined: Jan 01, 2006 1:01 am
Location: Baar, Switzerland
Contact:

[MERGED] Re: Strip Size and RAID level question ?

Post by Gostev »

Hi, "best" option will certainly be RAID10. Thanks!
albertwt
Veeam Legend
Posts: 879
Liked: 46 times
Joined: Nov 05, 2009 12:24 pm
Location: Sydney, NSW
Contact:

Re: [MERGED] Re: Strip Size and RAID level question ?

Post by albertwt »

Hi Anton,

If somehow the capacity is needed, I can only use RAID5 or 6.
Which one is at least better or closer to RAID10 ?
--
/* Veeam software enthusiast user & supporter ! */
dellock6
Veeam Software
Posts: 6137
Liked: 1928 times
Joined: Jul 26, 2009 3:39 pm
Full Name: Luca Dell'Oca
Location: Varese, Italy
Contact:

Re: Reverse incremental performance on Raid 5 vs Raid 10

Post by dellock6 » 1 person likes this post

With latest disks large at least 4 TB, and thus the rebuild time they require, I'd always go for Raid6. During a rebuild in raid5 you are completely unprotected, and if anything happens you lose data. With raid6 this problem is mitigated by the double parity. Raid6 has a higher write penalty, but I'd buy the extra protection any day over the slight performance decrease.
Luca Dell'Oca
Principal EMEA Cloud Architect @ Veeam Software

@dellock6
https://www.virtualtothecore.com/
vExpert 2011 -> 2022
Veeam VMCE #1
albertwt
Veeam Legend
Posts: 879
Liked: 46 times
Joined: Nov 05, 2009 12:24 pm
Location: Sydney, NSW
Contact:

Re: Reverse incremental performance on Raid 5 vs Raid 10

Post by albertwt »

Luca,

Thanks for the suggestion as for the LUN size and the stripe size can I select the largest possible for better performance ?
--
/* Veeam software enthusiast user & supporter ! */
albertwt
Veeam Legend
Posts: 879
Liked: 46 times
Joined: Nov 05, 2009 12:24 pm
Location: Sydney, NSW
Contact:

Re: [MERGED] RAID suggestion

Post by albertwt »

edfops wrote:We have 72 1.2TB SAS drives (over three DAS arrays), how might these be best configured for reverse incrementals backup jobs? Due to the space penalty with Raid10, that does not seem viable.

Current debate is between multiple Raid50 (for the better drive rebuild times) or Raid6 sets.

Anyone have similar experiences out there?

edit: not sure why this was merged, this is not a discussion on Raid 5 vs. Raid 10 but Raid 50 vs. Raid 6
Hi Edfops,

I'm in the similar situation.
So what is the Backup repository configuration that you are end up with now ?
--
/* Veeam software enthusiast user & supporter ! */
Post Reply

Who is online

Users browsing this forum: Link State and 301 guests