deduplication on affected volumes

[DoHuuBa]

A customer is experiencing read cache hit ratios well below 80 percent on an HPE Nimble HF40 array Data is constantly being ejected from the Nimble array's First In First Out cache What should you recommend?

1. Upgrade the SSD bundle to add more capacity.
2. Enable InfoSlght's Al-based cache optimization setting
3. Turn off deduplication on affected volumes
4. Turn on deduplication on affected volumes.

[Josh94K]

Hello, @DoHuuBa Good day! 
Given the options, I would choose: Turn off deduplication on affected volumes

@DoHuuBa  I hope this helps! 
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Note: "While I am an HPE Employee, all of my comments (whether noted or not), are my own and are not any official representation of the company."

[DaveOb]

Is it causing a performance issue?  the cache eviction may be down to the nature of the workload  and have little to do with dedupe being enabled, You could try creating a new volume without dedupe and migrating the data to it to see if the issue changes, 

[Josh94K · Accepted solution]

Hello ! @DoHuuBa 
Good day, 
just checking in to see if you have any further questions on Deduplication
If Yes, please let us know, else you may mark this forum post as solved   

@DoHuuBa  I hope this helps! 
If you feel this was helpful, Please HIT that KUDOS!  thumb below!

Note: "While I am an HPE Employee, all of my comments (whether noted or not), are my own and are not any official representation of the company."