By: North Idaho Tom Jones

North Idaho Tom Jones — Wed, 11 Apr 2018 00:30:33 +0000

I am a DIY FreeNAS business user.
I primarily use FreeNAS as NFS servers to my VMware ESXi systems. They are mostly used to hold backup images from my ESXi servers.
In the beginning several years ago, I instantly liked how easy FreeNAS was to configure.
Later, I found out many tips and tricks to get my FreeNAS servers screaming crazy fast 🙂
My primary FreeNAS NFS server can often sustain an 8.8 Gig (Reporting–Network) transfer speed when I copy from my VMware ESXi servers to my FreeNAS NFS server 🙂
And , I only have 6 Gig SAS drives , but thanks to real-time ZFS file compression, my FreeNAS system is usually able to sustain faster network transfer speeds than my 6-Gig SAS drives (which are connected to a single SAS controller).
* * *
One tip – trick I wish to share is as follows:
It is faster to transfer large (TB+ size files) one after the other (sequentially) , instead of many transfers at the same time. One transfer at a time keeps the disk heads constantly writing (or reading)
-verses-
many transfers at same time can seriously degrade transfer HDD write times because on many copies at the same time , there are constant hdd seeks.
—–> HDD seeks slow down transfer rates. <—–
So, If you have lots of stuff to move/copy, copy one file or one directory at time instead of many copies at the same time. This simple trick can usually increase your copy time by 2x or more.

By: John Graham

John Graham — Tue, 10 Apr 2018 22:29:22 +0000

Love everything you have done. A big thanks… the only thing I do not like is the all nothing when setting up hard drives. You can not go back and add to the stay… again thanks
John

Comments on: FreeNAS Survey Report

By: North Idaho Tom Jones

By: John Graham