Wireless Performance to ReadyNAS - at my wits' end...

wetenhr wrote:

I would love to know what you have to do in order to achieve some of the extraordinary transfer speeds others have reported on Wired! Would be great to achieve that as occasionally I have large transfers to achieve on backups (100s of Gb) and it makes a difference. If there are certain NICs that are known to work better than others (mine is an Atheros AR8151 PCI-E Gigabit Ethernet card) then I would swap in a heartbeat if I knew it would work.

Well, I get these wired-Ethernet speeds on my Pro Pioneer:

NAS performance tester 1.4 http://www.808.dk/?nastester
Running warmup...
Running a 400MB file write on drive W: 5 times...
Iteration 1:     110.80 MB/sec
Iteration 2:     101.27 MB/sec
Iteration 3:     110.19 MB/sec
Iteration 4:     105.26 MB/sec
Iteration 5:     101.78 MB/sec
------------------------------
Average (W):     105.86 MB/sec
------------------------------
Achievement unlocked: 100MB+/sec write speed!
Running a 400MB file read on drive W: 5 times...
Iteration 1:     104.71 MB/sec
Iteration 2:     112.04 MB/sec
Iteration 3:     111.73 MB/sec
Iteration 4:     107.82 MB/sec
Iteration 5:     105.54 MB/sec
------------------------------
Average (R):     108.37 MB/sec
------------------------------
Achievement unlocked: 100MB+/sec read speed!

Your Duo won't achieve those speeds, of course, but here's my setup; maybe configuring your system similarly will increase your speeds:

• PC: Quad-core i7 laptop, Win7/64
  


• NIC: Realtek RTL8167-based PCIe gigabit, driver version 7.073
  
  
  ARP Offload - Enabled
  Auto Disable Gigabit - Disabled
  Energy Efficient Ethernet - Disabled
  Flow Control - Rx & Tx Enabled
  Green Ethernet - Disabled
  Interrupt Moderation - Enabled
  IPv4 Checksum Offload - Rx & Tx Enabled
  Jumbo Frame - Disabled
  Large Send Offload v2 (IPv4) - Enabled
  Large Send Offload v2 (IPv6) - Enabled
  NS Offload - Enabled
  Priority & VLAN - Priority & VLAN Enabled
  Receive Buffers - 512
  Receive Side Scaling - Enabled
  Speed & Duplex - Auto Negotiation
  TCP Checksum Offload (IPv4) - Rx & Tx Enabled
  TCP Checksum Offload (IPv6) - Rx & Tx Enabled
  Transmit Buffers - 128
  UDP Checksum Offload (IPv4) - Rx & Tx Enabled
  UDP Checksum Offload (IPv6) - Rx & Tx Enabled
  


• Router: Cisco/Linksys E4200 running DD-WRT
  
  QoS - Disabled


• NAS: Pro Pioneer with 5 drives, RAID5
  
  Speed/Duplex Mode - Auto-negotiation
  MTU - 1500
  Enable Jumbo Frames - NO
  Oplocks enabled for all shares
  Enable disk write cache - YES
  Disable full data journaling - YES
  Enable disk spin-down - NO
  


• Cables: Cat-5, I think (but none of the cables is longer than 2 meters, so it probably doesn't matter)

Wireless speed could probably be improved, but it isn't terrible:

NAS performance tester 1.4 http://www.808.dk/?nastester
Running warmup...
Running a 400MB file write on drive W: 5 times...
Iteration 1:     14.19 MB/sec
Iteration 2:     14.32 MB/sec
Iteration 3:     14.21 MB/sec
Iteration 4:     14.40 MB/sec
Iteration 5:     14.52 MB/sec
------------------------------
Average (W):     14.33 MB/sec
------------------------------
Running a 400MB file read on drive W: 5 times...
Iteration 1:     10.35 MB/sec
Iteration 2:     9.87 MB/sec
Iteration 3:     10.95 MB/sec
Iteration 4:     9.17 MB/sec
Iteration 5:     11.15 MB/sec
------------------------------
Average (R):     10.30 MB/sec
------------------------------

• WiFi card: Intel Centrino Ultimate-N 6300, driver version 15.2.0.19
  
  802.11n Channel Width for band 2.4 - Auto
  802.11n Channel Width for band 5.2 - Auto
  802.11n Mode - Enabled
  Bluetooth AMP - Enabled
  Fat Channel Intolerant - Disabled
  Mixed Mode Protection - CTS-to-self Enabled
  Preferred Band - Prefer 5.2GHz Band
  Transmit Power - Highest
  Wireless Mode - 802.11a/b/g
  


• Router: Cisco/Linksys E4200 running DD-WRT
  
  Wireless Configuration - Default settings for everything that affects transfer speed