MY 16TB MyBook is buffering

If your WD My Book 16TB External Hard Drive is only buffering or transferring around ~500 KB/s (or very slowly), something is limiting the speed. Normally it should reach 80–180 MB/s over USB 3. Here are the most common causes and fixes:

Check the USB Port Type

The drive needs USB 3.0+ for full speed.

Blue USB port = USB 3.0

Black USB port = USB 2.0

If connected to USB 2.0, speed drops to about 20–35 MB/s or less.

✔ Fix: Plug it into a USB 3.0/3.1 port directly on the computer.

Check the Cable

A damaged or wrong cable can slow the drive.

✔ Try:

Another USB-A to Micro-B 3.0 cable

Avoid USB hubs.

Drive Might Be Busy Indexing / Scanning)

After connecting a big drive, Windows may scan or index files, causing buffering.

Check:

Task Manager → Disk Usage

If antivirus or indexing is using the drive.

✔ Wait until scanning finishes.

File System Errors

Errors can slow reading.

✔ Run check disk:

This PC → Right click drive → Properties → Tools → Check

Very Large Folder / Millions of Files

Copying many small files causes extremely slow speed.

Example:

10,000 small files = very slow

1 big file = very fast

✔ Solution:

Zip files before copying.

Hard Drive Going to Sleep

Some WD MyBook drives park heads aggressively.

✔ Try:

Safely eject and reconnect

Use WD Drive Utilities to check drive health.

Failing Drive (Check SMART)

If the drive is failing, speeds drop drastically.

✔ Use:

Crystal Disk Info

Look for:

Reallocated sectors

Warning / Bad status.

Quick test:

Copy one 2-5 GB file and see the speed.

If speed becomes 80–120 MB/s → normal

If still <5 MB/s → something wrong

0コメント