the correct capacity vs physical drives vs the ZPOOL

[Saeed A Siddiki]

hey guys! hope everyone is well
(especially on the eastern seaboard!)
i finally managed to finally get everything
docked and ready from the hardware point of
view! that took me a while (sorry novice here so a little slow!)

Corsair Obsidian Series Black 650D Mid Tower Computer Case (CC650DW-1)
MSI Z68A-G43 (G3)- LGA1155 Intel Z68 Express Chipset ATX Desktop Motherboard Core i7/i5/i3 SATA300/600 DDR3 USB3.0 CrossFireX 7.1CH Audio
Syba SD-SATA-4P Serial ATA150 4x Ports RAID Controller Card with SIL3114 Chipset - Retail x 2
Crucial Ballistix Sport 16GB kit (8GBx2) DDR3-1600 1.5V 240-Pin UDIMM BLS2CP8G3D1609DS1S00
Cooler Master Silent Pro Gold (SPG) 1200 Watts Modular Power Supply
Syba SY-CAB40007 Molex 4 Pin to 2x 15 Pin SATA Power Cable (5.5 Inches) x 4
SilverStone CFP52B 5.25-Inch to 3.5-Inch Bay Converter with Hot-Swappable Function (Black)
Silverstone Tek Four-in-One SATA Power Connectors with Power Stabilizing Capacitors (CP06)
Intel Core i3-2120 Dual-Core Processor 3.3 GHz 3 MB Cache LGA 1155 - BX80623I32120


The hard drives are the regular run of the mill in these capacities - green drives and one WD Blue Drive:

4 X 1TB * = *4 TB
3X 2TB*= *6 TB
2X 3TB *= *6 TB
1X * 750GB = *750 GB *

16TB physical*
-3tb overhead (in theory lets say)

i should end up at least with 12 TB OR 10TB ---

BUT WHATS SHOWING under

RAIDZ IS 5.6TB*and
under RAIDZ2 5.3TB

Would appreciate anyone who can further my fruitful exploration before i actually start moving my DATA files on this
bad boy …. cheers

i was reading this post and wonder if i should break things into a 6 and 3 sets etc.
http://www.solarisinternals.com/wik...Configuration_Example_.28x4500_with_raidz2.29

 

[cyberjock]

Bro, you shouldn't have posted in 1 thread, then started this one. One posting will get most people's attention :) Plus I got a PM from you, so I'll respond here for anyone else with problems.

Your drives are different sizes, so you're limited to the smallest drive. It's ideal to keep all the drives of the same size in the same vdev. Because you only have a few of each size, there's no "good" configuration for you except to do mirrors. As a newbie though, you'll have to keep track of what drive is in which vdev so you don't accidentally pull out an entire vdev's worth of drives at the same time and to make sure you always have redundancy.

The other thread pretty much has the same answer. I don't remember the poster's name, but I think it was Brian.

 

[Yell]

^this

Also note Freenas reserves 2 GB on each drive (if you created the array from the GUI)