Because I want to select the best solution to backup my files from Lenovo ThinkCentre Edge 72z 3574-U3V to QNAP TS-112, I prepare a test to collect data. I made a sample backup with one 3,3GB VDI file, 851 jpeg photos for 2.9GB, and 6 AVI video for 911.2MB. Lenovo ThinkCentre Edge 72z to QNAP TS-112 are connected directly via Gigabit Ethernet.
What are the Numbers and How to Get them
Software Statistics measures from start to end on user’s computer. It means when user feel the job is done.
Bandwidth Monitor measures from start to end on NAS. Time spent transferring between computer and NAS.
I use the build-in monitor feature on QNAP TS-112. You may see the graphic in [Control Panel]→[System Status]→[Resource Monitor]→[Bandwidth Usage].
This table gives you a rough ideas about the average transfer speed and the time it takes. As you may see, only iSCSI perform better than USB 2.0 on both read and write.
There are three things very interested:
1. iSCSI transfer twice faster than NFS, Samba (mount by Nautilus) and ftp but the shrinks to 20% to 30% on time spent. It seems the file cache helps iSCSI to send data in the background. NFS needs to enable cache manually.
With different configuration, you might see different result from others. Here is what I summarized:
- iSCSI is the faster than Samba on Synology DiskStation DS213j but slower on Synology DiskStation DS214se. None of them specify the Samba version.
- Samba performance gains with smb v2 or higher.
- The CPU in your NAS will limit the bandwidth due to computing power, even with SSD. For example, QNAP TS-112 has upload limit about 40 ~ 50 MB/s and download limit about 60 ~ 70MB/s, and Marvell 6281 1.6GHz limits to about 50MB/s on QNAP TS-212.
My TS-112 encounters several freeze during test. It won’t respond to the web admin.
I press the power button for 1.5 seconds to send a shutdown command to NAS. It is described in online manual:
Press the power button for 1.5 seconds to turn off the NAS. To force shut down the NAS, press the power button for more than 5 seconds. The NAS will beep once and shut down immediately.
For how to use these solutions, there will be other post about them in the next few days.
- Using File Transfer Protocol (FTP) Services with QNAP TS-112
- Using Microsoft Networking via Samba with QNAP TS-112 and LevelOne GNS-1001
- Using iSCSI with QNAP TS-112
- Using Network File System (NFS) Service with QNAP TS-112
- Lenovo: ThinkCentre Edge 72z
- QNAP: TS-112
- Wiki: Oracle VDI
- Connect NAS to your Computer Directly
- LFTP for NAS with FTP Server
- FreeFileSync for Internal or External Device
- RedHat: Customer Portal: Support: 10.3. Using the Cache With NFS
- PCMagazine: Definition of:block level
- ExpertReview: Synology DiskStation DS213j review
- StorageReview: Synology DiskStation DS214se Review
- Ars OpenForum: file copy speed vs FTP
- Stephen Yeong’s Blog: Samba 50MB per second limit?
- reddit: NFS vs iSCSI, fight! (your thoughts on performance)
- superuser: AFP, SMB, NFS which is the best data transfer protocol?
- Apple Support Communities: iSCSI, AFP, SMB, and NFS performance with Mac OS X 10.5.5 clients
- AskUbuntu: Which to use NFS or Samba?
- QNAP Forum: VPN Centre + proxy Server
- QNAP Forum: TS-212 SMB速度疑問
- QNAP: TS-112
- [H]ard|Forum: SSD to NAS file transfer over gigabit – why only 30MB/s?
- QNAP Turbo NAS User Manual: NAS Maintenance Settings: System Restart/Shutdown
- Wiki: File Transfer Protocol
- nixCraft: Linux / Unix: lftp Command Mirror Files and Directories
- MetaLinux: lftp: backup and mirroring
- Wiki: Samba (software)
- Wiki: Server Message Block
- Wiki: Nautilus (file manager)
- QNAP Forum: Windows 8
- ServerFault: SMB claimed to be “slow”
- Wiki: iSCSI
- TechRepublic: When is it okay to allow multiple hosts to connect to a single iSCSI array?
- Wiki: iSCSI: Target
- QNAP: How to Configure iSCSI Advanced ACL on QNAP Turbo NAS
- Mobile01: [教學]利用Synology的NAS在Windows7下建立iSCSI磁碟機
- Wiki: YaST
- Wiki: Network File System
- GitHub: NFS-LAN
- QNAP Forum: NSF4 Firmware 3.8.1
- Mobile01: 有關 NAS 所支援的 NFS 版本
- QNAP Community Wiki: Mounting NFS
- QNAP Turbo NAS User Manual: Network Services: NFS Service
- The Linux Information Project: The umount Command