Yottamaster DF4RU3 Installation Manual Download

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7. Remove the Hard Drive

7.1 Remove it from Windows OS

First, stop the read and write operations of the hard drive, then click the small USB icon
on the task-bar, and select the drive drive which you want to eject.

7.2 Remove it from Mac OS

First, stop the read and write operations of the hard drive, and then drag the drive drive
to the Recycle Bin to complete drive ejection.

8. Frequently Asked Question

8.1 How to Replace A Hard Drive

If you want to replace one of the drives in the enclosure with a new one, or one of the
drives is damaged (the corresponding indicator will turn red and the enclosure will beep
to warn. ), here are tips for replacing a hard drive.

Situation A: The enclosure is in PM(Normal) mode.

1. Find the bad drive. Eject and power oﬀ the enclosure in order.
2. Pull out the bad drive. Format the new drive on another device ﬁrst. Then insert the

new drive ( the same capacity or bigger ) to the original position and turn on the enclosure.

Situation B: The enclosure is in RAID Mode.

How to rebuild RAID
(1) Find the bad drive. Eject and power oﬀ the enclosure in order.
(2) Pull out the bad drive. Format the new drive on another device ﬁrst. Then insert the

new drive ( the same capacity or bigger ) to the original position and turn on the
enclosure.

(3) You can download our Software RAID Manager on our Website. Note: this step is not

necessary.

(4) The enclosure will start rebuilding current raid mode automatically. The light will

ﬂash red and blue. You can see the RAID is rebuilding from the notes or logs on the
RAID Manager software. The rebuilding time depends on the capacity of all drives,
please wait patiently while rebuilding.

(5) When the rebuilding is ﬁnished, the light will turn solid blue. And the RAID Manager

will indicate the status.

8.2 Adding A New Hard Drive Into the Enclosure

Situation A: The enclosure is in PM(Normal) mode, please follow 2 to 3.
Situation B: If it is in RAID Mode, please follow 1 to 5.
(1) Backup all your important data in your drives in advance.
(2) Safely eject the enclosure from your computer and then turn oﬀ the enclosure.
(3) If the drive you want to add is a brand new drive, please format it on another device.

Then insert it into the enclosure. Do not change the drive order.

(4) Toggle the RAID switch to the PM(Normal) mode. Press and hold the Set button.

While holding the Set button then press and release the Power button to turn it on.
(Ensure the enclosure is back to PM mode.) Please refer to the content of 5.5.1.

(5) Turn oﬀ the enclosure. Toggle the RAID switch to the RAID mode you want. Please

refer to the content of 5.5.2.

8.3 Canceling / Adjusting Auto-sleep Time

(1) If there is no data processing within ten minutes, the device will enter into sleep

mode automatically. The hard drive will stop running while in sleep mode.

(2) Please go to https://www.yottamaster.com/?route=common/driver and select

"Sleep Time Setting Firmware update for 4/5 Bay HDD Enclosure" to download the
ﬁrmware. And follow the steps in the attached document. Please note that the
ﬁrmware update does not support Mac OS and Linux systems.

9. Initialize and Format New Drives

Note: New hard drive needs to be initialized and formatted before operation, or it won't
be recognized. To mount a new hard drive, please follow the step below.

9.1 Under Microsoft Windows

(1) Please make sure that the Yottamaster hard drive enclosure is installed correctly and

connected to the computer.

(2) Right click on "Computer". Select "Manage". Select "Drive Management". A pop-up

will come up, suggesting a new hard drive needs to be initialized. Select "MBR" or
"GPT" partition type and click "OK".

Catalog

1. Appearance ��. 3

2. Hard drive Installation ��.. 4

3. Connection ��. 6

4. Format Hard Drive ��.. 6

5. Set Up RAID ��.. 6

CRITICAL NOTICE ��. 6