The WD My Passport 2TB (model WDBY8L0020BSL) is a USB 3.0 portable hard drive often found on discount. This one was purchased for $119.99.
The plastic casing is rather large, though not surprising due to the larger hard drive capacity. Compared to the average portable hard drive, the case is roughly 33% larger. However, the case feels rather flimsy and cheap which is uncharacteristic of WD’s higher standard as a hard drive manufacturer. On the other hand, My Passport is their cheaper line of external hard drives and the plastic case remains cool enough during usage.
Included with the hard drive is an 18” USB 3.0 cable that also powers the portable hard drive. No AC adapter required.
Performance was great for the price. Read speed was around 100 MB/s, and write speed was around 75 MB/s. Not the fastest USB 3.0 performance, but significantly faster than a USB 2.0 hard drive.
Given the price and performance, this is a great portable hard drive.
Benchmarked below is the WD My Passport 2TB (model WDBY8L0020BSL) formated to have a single ext3 partition.
fdisk -l /dev/sdb
Disk /dev/sdb: 2000.4 GB, 2000365289472 bytes 255 heads, 63 sectors/track, 243197 cylinders, total 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 Disk identifier: 0x0005f107
Device Boot Start End Blocks Id System /dev/sdb1 2048 3906963455 1953480704 83 Linux
Device Read Benchmark (USB 3.0)
hdparm -t /dev/sdb1
/dev/sdb1: Timing buffered disk reads: 312 MB in 3.01 seconds = 103.62 MB/sec
Device Write Benchmark: 1MB x 1000 (USB 3.0)
dd if=/dev/zero of=tempfile bs=1M count=1000 conv=fdatasync,notrunc 1000+0 records in 1000+0 records out 1048576000 bytes (1.0 GB) copied, 13.7562 s, 76.2 MB/s
Device Write Benchmark: 10MB x 100 (USB 3.0)
dd if=/dev/zero of=tempfile bs=10M count=100 conv=fdatasync,notrunc 100+0 records in 100+0 records out 1048576000 bytes (1.0 GB) copied, 13.7273 s, 76.4 MB/s
Device Write Benchmark: 100MB x 10 (USB 3.0)
dd if=/dev/zero of=tempfile bs=100M count=10 conv=fdatasync,notrunc 10+0 records in 10+0 records out 1048576000 bytes (1.0 GB) copied, 13.8225 s, 75.9 MB/s
Device Write Benchmark: 500MB x 2 (USB 3.0)
dd if=/dev/zero of=tempfile bs=500M count=2 conv=fdatasync,notrunc 2+0 records in 2+0 records out 1048576000 bytes (1.0 GB) copied, 13.7103 s, 76.5 MB/s
Device Write Benchmark: 1000MB x 1 (USB 3.0)
dd if=/dev/zero of=tempfile bs=1000M count=1 conv=fdatasync,notrunc 1+0 records in 1+0 records out 1048576000 bytes (1.0 GB) copied, 14.346 s, 73.1 MB/s