Tranfer speed about little-backup-box HOT 6 CLOSED

I can confirm this. While USB 3.0 theoretically should make 625 MB/s possible, I get usually also ~40 MB/s. Best speed from internal to my SanDisk Extreme v1 was ~130 MB/s.

If I try a similar command locally on my laptop (using internal ssd nvme0n1p4):
rsync -avh --info=FLIST0,PROGRESS2 --mkpath --no-perms --stats --min-size=1 ./tmp ./tmp2
I also won't get much more than 280 MB/s. Any idea?

from little-backup-box.

I'm testing using an external ssd hard disk instead of micro sd

the operating system is faster, I will continue to report how lbb behaves.

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I currently have a raspberry pi 4 with the operating system on a ssd 2.0 disk and the transfer speed is:

dd if=/dev/zero of=test.img bs=1M count=1024 status=progress
1069547520 bytes (1.1 GB, 1020 MiB) copied, 25 s, 42.8 MB/s
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 33.2713 s, 32.3 MB/s.

I tried to use my ssd disk with the 3.0 port of the raspberry but it does not boot, it only works when I connect it to the 2.0 port.

I am preparing a trip in which I need lbb to work perfectly so I will be all this month testing and configuring it as best as possible for me, thank you very much for your work.

from little-backup-box.

from little-backup-box.

I have a 3.0 hard drive enclosure but it only works plugged into the USB 2.0 port.
On other pcs with 3.0 port it works.
I don't use sd card, the Raspberry Pi only uses the SSD to load the operating system.

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I have no experience booting the Pi from USB devices. But I couldn't find a restriction regarding the USB 3.0 ports either...

Maybe I'm being overcautious, but a power outage or system crash at the wrong time could cause the system to become unbootable on the next start. In my countless tests I have had this situation several times - and in one case also on a trip.
Then a new installation was necessary. If the data and the system are on the same medium, a new installation also costs the data.
Based on this consideration, I always take at least two fully installed SD cards with me when traveling. Last summer in Greece, that was my luck!

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