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Forum Discussion
ReadNas backup hung? writing to usb attached drive
Hi,
I kicked off a backup to the 4tb usb drive connected to the front usb port, with 4 backup jobs of each of the shares in series. I'm doing this before I switch to OS6.
I could see the usb ...
I wouldn't assume that it's hung just yet.
What USB backup device are you using? Many are SMR drives, and they can be very slow when you are doing sustained writes - 9-10 MB/sec.
At 9am the next morning, more than 15 hours in total, I still couldn't connect to the drive via Windows or get the admin screen up.
I decided to shut down the NAS but it couldn't do it, probably some backup task preventing it. I hit the power switch and it went through recovery then started up. I detached the usb and attached it to my desktop and it was toast. One share backup was missing the other I couldn't read, unsurprisingly. I reformatted the usb drive and reattached, then kicked off the first job manually, but this time attached to one of the back usb ports. It seems very slow, much slower than last time. 7 hours and it's only written 110GB. The first time I thought it had written 100GB in 2 hours. At this rate I'll be here all week!
I'm using a Seagate portable 4tb disk, but as this is a legacy machine it can only operate at usb2 speeds. Still it seems very slow.
I see from a Google that Seagate have been shipping SMR disks since 2013.
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