Intel 800P/900P and over provisioning

[HHamo]

I'm thinking about using either the Intel 800P or the 900P with Linux and ZFS.

ZFS requires SSD's for both caching (read cache - L2ARC) and SLOG (which is being used by ZIL - you can read about it http://www.freenas.org/blog/zfs-zil-and-slog-demystified/ here).

According to various reviews (and maybe Intel marketing department should take note) - the Intel 900P is the "king" of performance for ZFS, specially if you're planning to setup a ZFS with lots 10Gbit connections and tons of write commands.

One thing is unknown, however...

On any SSD which will be used by SLOG (and have a PLP - Power Loss Protection, in order to have synchronous wiriting) - it is recommended to use Over provision and basically not to create partitions that will use the entire SSD, so if the SSD for example is 250GB size, create partitions up to 220GB and leave the rest for OP.

Since both the 800P and 900P are not using standard NAND and they use 3D XPoint - what is the recommendation? can I create full partitions or should I create just like as NAND SSD?

Thanks

[idata]

Hello Hetz,

Thanks for your interest in our products.One of the differences between Intel® Optane™ SSDs (which implement 3D XPoint™ instead of NAND technology) is that overprovisioning is not strictly required in order to maintain high random performance and consistency. Please bear in mind that most drives come with overproviosioning by default, even though it is not visible to the end user in most cases. It is up to the users and their needs to add a custom value if required.However, it is important to notice that Intel® Optane™ SSD 900p and 800p Series are part of the https://www.intel.com/content/www/us/en/products/memory-storage/solid-state-drives/gaming-enthusiast-ssds.html Intel SSD Enthusiasts and https://www.intel.com/content/www/us/en/products/memory-storage/solid-state-drives/consumer-ssds.html Consumer families, this drives are not intended to be used on data center or server environments. For that, we recommend the https://www.intel.com/content/www/us/en/products/memory-storage/solid-state-drives/data-center-ssds.html Intel SSD Data Center Family.Please let us know if there's anything else we can do for you.Best regards,Eugenio F.