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- May 17, 2014
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We have started seeing people use quite large NVMe drives for L2ARC / Cache devices. Even 1TByte ones.
Some people may have them handy. Others select them with the philosophy as more is better. Many don't know the 5 times RAM size guideline.
So, I am thinking that as part of adding a L2ARC / Cache device, the GUI should prompt the user for maximum size. Perhaps limiting it to 10 times RAM size but suggesting 5 times RAM size. Then, partition the NVMe, (or SATA SSD...), as appropriate.
Obviously if the supplied device size falls close to the 5 times RAM size guideline, no prompt is needed.
Perhaps adding another advanced checkbox option when a user has less than 64GBytes of RAM. (Or perhaps 32GBytes of RAM.)
What do you think?
Worthy of a feature request Jira ticket?
Some people may have them handy. Others select them with the philosophy as more is better. Many don't know the 5 times RAM size guideline.
So, I am thinking that as part of adding a L2ARC / Cache device, the GUI should prompt the user for maximum size. Perhaps limiting it to 10 times RAM size but suggesting 5 times RAM size. Then, partition the NVMe, (or SATA SSD...), as appropriate.
Obviously if the supplied device size falls close to the 5 times RAM size guideline, no prompt is needed.
Perhaps adding another advanced checkbox option when a user has less than 64GBytes of RAM. (Or perhaps 32GBytes of RAM.)
What do you think?
Worthy of a feature request Jira ticket?