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How many volumes can be created in 10TB single brick XtremIO out of 7.58TB physical space?
How many volumes can be created in 10TB single brick XtremIO out of 7.58TB physical space?
This post is more than 5 years old
5 Posts
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776
How many volumes can be created in 10TB single brick XtremIO out of 7.58TB physical space?
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Kumar_A
727 Posts
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August 11th, 2015 13:00
Short answer: yes, you can go ahead and create those volumes because the creation of volumes on the XtremIO array is not going to consume any physical capacity in the array (you have 3.088TB of free flash capacity).
However, you need to have an understanding of the dedupe ratio, compression ratio, thin provisioning and other space savings that you can expect on the new volumes that you are going to create. These savings would depend on the data that you are going to store on those new volumes - and thats where you can ask you EMC account team to run the MiTrend tool and tell you what those savings would be. In other words, your new volumes can be 8TB in size, but how much data are you going to store in those volumes, how much would that deduplicate and compress, etc.
RaviRaj215
5 Posts
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August 11th, 2015 00:00
Correction in my question, it is not how many it is how much volumes can be created out of 7.5TB physical capacity.
Version 3.0.3-11
Kumar_A
727 Posts
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August 11th, 2015 04:00
The 'maximum' numbers for any release is mentioned in the release notes. You can create a maximum of 8192 volumes and snapshots in the array. For example, 6000 volumes and 2192 snapshots or any combination that totals 8192.
brettesinclair
715 Posts
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August 11th, 2015 05:00
I don't think there's a limit to how much TB you can logically provision, but obviously you are constrained by how efficiently all the inbuilt data reduction features can apply to your own dataset. (dedup, thin provision, snapshots etc)
The often quoted range if 5:1 to 30:1.
Are you planning a mixed set of workloads ?
echolaughmk
522 Posts
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August 11th, 2015 05:00
The release notes will detail this as well....with an asterisk for "it depends" based on the the data reduction ration that Brett@S discusses. For your code level and setup, the maximum logical capacity that can be provisioned is 110-130Tib and that total amount can be split up into any sized luns that comprise that 8192 number Avi talks about above:
Kumar_A
727 Posts
0
August 11th, 2015 06:00
There are tools that can tell you what the dedupe, compression and thin provisioning savings would be for your application data if it was sitting on XtremIO. Work with your EMC account team if needed to get this tool run in your environment.
Kumar_A
727 Posts
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August 11th, 2015 06:00
If you are asking about the number of volumes that can be created on the array – then that number is 8192 (as a combination of snapshots and volumes). Is that what you are asking?
RaviRaj215
5 Posts
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August 11th, 2015 10:00
Thanks to all who spend their time to respond my question.
I am still in confustion to proceed with new volume to create or not
, can some one advise me?
There is request to create 4x8TB volume.
Below are the usage details.
Physical capacity : 7.587TB Used: 4.5TB(60%) Free:3.088TB(40%)
Volume capacity: 88TB(11x8TB volumes created) Used: 56.234(64%) Free:31.759TB(36%)
Thin Provisioning Saving: 36%
Data Reduction Ratio: 12.7:1
Deduplication: 7.0:1
Compression: 1.8:1
Overall Efficiency: 19:1