Local USB copy is very slow.
Postby glenndm » Thu Dec 11, 2008 5:18 pm
Continuing my DS207+ trials, I've now come to the USB local copy feature.
Not blown away by the network transfer speed, I am really disappointed by the local copy TO a USB device.
It's so slow that it is practically unusable!
Tests show a mean (and meager) throughput of 0,8 MBps ( or 6,4 Mbits/s).
That's a far cry from the USB-2 specification of 480 Mbit/s.
Or are the ports "Full-speed" rated at 12Mbit/s?
This means that an first offline backup of the volume (about 100Gb) would take about 1,5 days to complete
further rsync's (at about 10Gb if daily) would reduce to 4 hours, which it is still too long. As the offline backup will only happen once a week, we're back to days.
During the tests, only the webmanagment and samba were running. all other features are disabled (and will remain so)
I later stopped the apache services to free up memory/cpu load - no improvement.
please tell me there's a hotfix/patch ?
DS207+
Re: Local USB copy is very slow.
Postby gunrunnerjohn » Sun May 09, 2010 4:10 pm
It's likely the filesystem format.
I just connected a 20gig USB drive to my Synology DS209 (firmware DSM 2.3-1141), then formatted it to EXT3.
I copied at 622mb file to this drive in 40 seconds for a 15.5mb/sec speed. Not a firebreathing speed, but since this 2.5" drive only does about 18mb/sec on my computer, pretty close to it's limits.
I used File Station for the copy.
Edit: I just tried a 640mb folder with a bunch of 20mb files, it managed right at 20mb/sec, actually a bit better than the same drive formatted FAT32 on my main Windows system.
原帖由 @gopcboy 于 2017-8-8 16:04 发表
另外你在web界面直接操作
不要用套件
也不要用
windows界面操作
原帖由 @rekoeition 于 2017-8-8 17:12 发表
216j配合cz80，速度在30M左右
原帖由 @gopcboy 于 2017-8-8 19:16 发表
我是216se
很低的配置都能拷贝到20多呀
看看更新固件能不能解决
另外群晖到现在还不支持usb插安卓手机直接考东西感觉不可思议
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