Hello everyone,
I'm building myself a NAS mostly to store all my data in one place. In addition, my girl-friend starting her business as a professional photographer, the disks on her machine is filling up pretty quickly. I mostly want my NAS to be small, low power consumption, upgradable and easy to maintain. Good perf is a bonus but not required.
I went for the following components:
I'm currently using only 2 of the 4 disk slots, I'll buy more disks when I'll need more space.
I started testing with Unraid, FreeNas, Ubuntu and Windows 2008 R2. I quickly decided not to go with FreeNas (at least for now) for it's lack of support for the new Western Digital Advanced Format. I didn't tweak any of the systems I tested.
I just finished tested Win 2k8 and the reason I'm writing this post is because I have odd results.
I test file transfer by copying regular files such as mp3s and big files (up to 5GB) with Robocopy. I do other tests as well with Iozone.
So far, Win2k8 gave me the best results with robotcopy in average, Ubuntu being close. I have 31/53 Write/Read MB/sec for MP3 and 65/77 Write/Read for big files. This could be limited by my test machine (Windows 7, Motherboard Raid 1 Caviar Black).
However for the iozone test, I get intriguing results, transfer rate seems way to high.
Writes: For files of 512MB and lower, I get 1,200 MB/Sec. It goes down to 154MB/Sec and 90MB/Sec for 1 and 2 GB files. Even with 90 MB/sec, it more than twice higher with the other systems.
Read: The read speed seems more realistic with 90 MB/s (70 for 2 GB). FreeNas come second with 70MB/sec average.
Any idea on why the given write speed with iozone is so high?
Any other feedback on my build is more than welcome.
Thanks
I'm building myself a NAS mostly to store all my data in one place. In addition, my girl-friend starting her business as a professional photographer, the disks on her machine is filling up pretty quickly. I mostly want my NAS to be small, low power consumption, upgradable and easy to maintain. Good perf is a bonus but not required.
I went for the following components:
- CHENBRO ES34069 (4 drive slots)
- GIGABYTE GA-D510UD (ATOM D510)
- G.SKILL 2GB DDR2
- 2 x Western Digital Caviar Green WD20EARS 2TB (Software Raid 1)
I'm currently using only 2 of the 4 disk slots, I'll buy more disks when I'll need more space.
I started testing with Unraid, FreeNas, Ubuntu and Windows 2008 R2. I quickly decided not to go with FreeNas (at least for now) for it's lack of support for the new Western Digital Advanced Format. I didn't tweak any of the systems I tested.
I just finished tested Win 2k8 and the reason I'm writing this post is because I have odd results.
I test file transfer by copying regular files such as mp3s and big files (up to 5GB) with Robocopy. I do other tests as well with Iozone.
So far, Win2k8 gave me the best results with robotcopy in average, Ubuntu being close. I have 31/53 Write/Read MB/sec for MP3 and 65/77 Write/Read for big files. This could be limited by my test machine (Windows 7, Motherboard Raid 1 Caviar Black).
However for the iozone test, I get intriguing results, transfer rate seems way to high.
Writes: For files of 512MB and lower, I get 1,200 MB/Sec. It goes down to 154MB/Sec and 90MB/Sec for 1 and 2 GB files. Even with 90 MB/sec, it more than twice higher with the other systems.
Read: The read speed seems more realistic with 90 MB/s (70 for 2 GB). FreeNas come second with 70MB/sec average.
Any idea on why the given write speed with iozone is so high?
Any other feedback on my build is more than welcome.
Thanks