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Very slow read speed of external usb hdd drive?
Good day!
The problem is this: there is an external hard drive WD My Passport for Mac. It has the hfs+ file system.
Brought it to me kind of dropped a bit. Mac OS and WIndows do not see it. I managed to mount on Linux, but the reading speed is terribly slow.
you need to copy data from it (about 150 GB, a lot of small files)
what could be the problem with such a low read speed? are there any ideas?
if you need more information ask
# fdisk -l /dev/sdd
Disk /dev/sdd: 1.8 TiB, 2000365289472 bytes, 3906963456 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: A58EACF6-DE44-43F8-9150-47FA3842849B
Device Start End Sectors Size Type
/dev/sdd1 40 409639 409600 200M EFI System
/dev/sdd2 409640 3906701271 3906291632 1.8T Apple HFS/HFS+
# ddrescue -d -v /dev/sdd2 /pass.iso /pass.mapfile
GNU ddrescue 1.20
About to copy 2000 GBytes from /dev/sdd2 to /work/passport.iso.
Starting positions: infile = 0 B, outfile = 0 B
Copy block size: 128 sectors Initial skip size: 128 sectors
Sector size: 512 Bytes
Press Ctrl-C to interrupt
rescued: 25821 kB, errsize: 0 B, current rate: 16384 B/s
ipos: 25821 kB, errors: 0, average rate: 39724 B/s
opos: 25821 kB, run time: 10m 50s, remaining time: 2y 61d 52m
time since last successful read: 0s
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And it would be nice to take it out of the box and provide forced cooling. Good luck.
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