Best Hard Drive 2014

• HGST Deskstar 7K2000 HDS722020ALA330 (Ebay $50)(Amazon $70) (Newegg $140) (Power Idle 7.5W)

• Raid 5 - 3 Drives → 4TB → 22.5W
• Raid 5 - 4 Drives → 6TB → 30W

1. are iSCSI targets connected on bootup (Windows)
2. are iSCSI targets connected on bootup (Ubuntu) yes?
3. can you grow iSCSI targets as normal files
4. can you grow iSCSI targets as ZFS volumes
5. Is there a write gain for 4 drive raid 5: yes
6. What is the performance hit for parity calculations: very small, active cpu usage is less than 2%, local throughput at 4 drives is 200MB/s, iSCSI access is at 125MB/s or 1000mb/s
7. what is the added latency of ethernet/tcp transmissions: 0.1ms - 0.2ms