csum failed on raid1 even after clean scrub?

I am using a two disk raid1 btrfs filesystem spanning two external hard drives connected via USB 3.0. While copying ~6TB of data from this filesystem to local disk via rsync I am seeing messages like the following in dmesg output: [ 2213.406267] BTRFS warning (device sdj1): csum failed root 5 ino

Re: csum failed on raid1 even after clean scrub?

On 2018年07月31日 08:43, Sterling Windmill wrote: > I am using a two disk raid1 btrfs filesystem spanning two external hard > drives connected via USB 3.0. Is there any speed difference between the two device? And are these 2 devices under the same USB3.0 root hub or different root hubs? lsusb out

Re: csum failed on raid1 even after clean scrub?

Thanks for the speedy reply! Here's my kernel version: 4.17.9-200.fc28.x86_64 dmesg doesn't show any USB related info at all, no signs of errors / warnings. Both drives are identical, Seagate 8TB external drives connected to the following PCIe controller: 03:00.0 USB controller: NEC Corporati

Re: csum failed on raid1 even after clean scrub?

Sterling Windmill posted on Mon, 30 Jul 2018 21:06:54 -0400 as excerpted: > Both drives are identical, Seagate 8TB external drives Are those the "shingled" SMR drives, normally sold as archive drives and first commonly available in the 8TB size, and often bought for their generally better price