Thanks a lot for your reply! I've read through the documents and moving forward with block over FC is already decided. My question was more in regards to the differences between Thick and Thin LUNs at this stage using an All-Flash array. If there's close to no performance impact using Thin LUNs - I would prefer it. If there are still some noticeable gaps in performance between Thin and Thick LUNs - I may need to go with Thick LUNs for this cluster.
Do you plan on using snapshots/thin clones, async replication, or data reduction? In which case go with thin.
You might find thick is better performance is your application uses a sequential workload. But really the best way to tell is for you benchmark both LUN types with your application, or a workload generator like vdbench that mimics your workload.
DELL-Sam L
Moderator
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7.8K Posts
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January 27th, 2020 10:00
Hello Satrum,
Here is the link to Dell EMC Unity: Microsoft SQL Server Best Practices guide.
https://dell.to/2Gv6Hpz
Please let us know if you have any other questions.
Satrum
5 Posts
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January 27th, 2020 17:00
Hi Sam
Thanks a lot for your reply!
I've read through the documents and moving forward with block over FC is already decided.
My question was more in regards to the differences between Thick and Thin LUNs at this stage using an All-Flash array.
If there's close to no performance impact using Thin LUNs - I would prefer it.
If there are still some noticeable gaps in performance between Thin and Thick LUNs - I may need to go with Thick LUNs for this cluster.
Hope that makes sense!
Thank you!
DELL_ChrisHolloway
2 Intern
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125 Posts
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January 28th, 2020 01:00
Do you plan on using snapshots/thin clones, async replication, or data reduction? In which case go with thin.
You might find thick is better performance is your application uses a sequential workload. But really the best way to tell is for you benchmark both LUN types with your application, or a workload generator like vdbench that mimics your workload.
In my experience, most people use thin LUNs.