This is a bit out of scope of nginx but ..

could be network issue or LACP issue but doesn't looks like it is

How did you determine this?
Can you generate more than 1 Gbps (without nginx)?


12 x 3TB SATA Raid-10 (HBA LSI-9211)
ZFS FileSystem with 18TB usable space

Please i need guidance to handle with this problem, i am sure that some value needs to tweak.

What's the output of zpool iostat (and the overal zpool/zfs configuration)?

Also do you have ZFS on top of hardware raid ?

In general just 12 SATA disks won't have a lot of IOps (especially random read) unless it all hits ZFS Arc (can/should be monitored), even more if there is a hardware raid underneath (in your place would flash the HBA with IT firmware so you get plain jbods managed by ZFS).

rr
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