OWC Mercury Rack Pro mini-SAS Bedienungsanleitung

User Guide &

Owners Manual

OWC Mercury Rack Pro mini-SAS Table of Contents

1 INTRODUCTION

1.1 SYSTEM REQUIREMENTS

1.1.1 Mac Requirements

1.1.2 PC Requirements

1.1.3 Supported Hard Drives

1.2 PACKAGE CONTENTS

1.3 ABOUT THIS MANUAL

1.4 REAR VIEW & CABLE CONNECTIONS

1.5 FRONT VIEW & LED INDICATORS

1.5.1 LED Indicators

1.6 RAID MODES

1.6.1 Combine

1.6.2 Disk Striping (RAID 0)

1.6.3 Disk Mirroring (RAID 1)

1.6.4 Disk Mirroring with Striping (RAID 10)

1.6.6 Disk Striping with Dedicated Parity (RAID 3)

1.6.6 Disk Striping with Distributed Parity (RAID 5)

1.6.7 Clear RAID Mode

2 SYSTEM SETUP

5 APPENDIX

6 CUSTOMER SERVICE

6.1 BEFORE CONTACTING CUSTOMER SERVICE

6.2 CUSTOMER SERVICE HOURS OF OPERATION

2.1 HARD DRIVE INSTALLTION

2.2 REPLACING HARD DRIVES

2.3 CONNECTIONS TO COMPUTER

2.4 CONVERTING TO DESKTOP UNIT

3 FORMATTING

3.1 MACINTOSH FORMATTING

3.2 REMOVING AN EXISTING GUID PARTITION (PRECONFIGURED SOLUTIONS)

3.3 WINDOWS FORMATTING

4 TROUBLESHOOTING & TIPS

4.1 TROUBLESHOOTING

4.2 USAGE TIPS

5.1 FAQ

5.2 ABOUT DATA BACKUP

1.1 System Requirements

1.1.1 Mac Requirements

Dependent on the interface card you purchase to use with this solution. Please check

the specications of the controller card to determine system requirements.

1.1.2 PC Requirements

Dependent on the interface card you purchase to use with this solution. Please check

the specications of the controller card to determine system requirements.

1.1.3 Supported Drives

•Up to 4 3.5” SATA or SAS drives (1.5Gb/s, 3.0Gb/s, or 6.0Gb/s)

•40GB - 3.0TB per HDD

•Drives of identical capacity / model are required for RAID congurations

1.2 Package Contents

OWC Mercury Rack Pro mini-SAS Chapter 1 - Introduction

1 INTRODUCTION

Item

➀Power cable

➁Rack Mounting Handles

➂ Desktop Mounting Feet

➃ Screws for Rack / Desktop Conversion

➄ Software CD Bundle (solutions only)

➅ User Guide & Owner’s Manual

1.3 About This Manual

Firmware, images, and descriptions may vary slightly between this manual and the

unit shipped. Functions and features may change depending on the rmware version.

Please visit the product webpage for the most recent specications.

➂

➃

➀

➁

➅

➄

OWC Mercury Rack Pro mini-SAS Chapter 1 - Introduction

1.5.1 LED Indicators

Power Input

Voltage Switch External mini-SAS Port

Cable Connections:

1. Plug the power cable into the wall and into the OWC Mercury Rack Pro.

2. Verify that the voltage switch is set properly for your country.

3. Connect your external mini-SAS cable to your external mini-SAS controller card.

(neither are included)

1.4 Rear View & Cable Connections

1.5 Front View & LED Indicators

Each drive by has a multicolor LED indicator.

Power:

• O = Power o

• Blue = Power on (all 4 drive bays)

Access:

• Flashing Red = Drive being accessed

Rebuild:

• Blinking red = Rebuilding RAID array

• Solid Red = Faulty drive

Power On/O button

is inside the front door on the left side.

OWC Mercury Rack Pro SAS Chapter 1 - Introduction

1.6 RAID Modes

The OWC Mercury Rack Pro mini-SAS does not have any RAID functions built in;

however most RAID cards you will choose to use with the OWC Mercury Rack Pro

mini-SAS will. These denitions of dierent RAID modes are provided to help you

decide which mode is best for you to use.

1.6.1 Combine

The drives show up as one large single volume. The total size will depend on the drives

installed, you can use drives of dierent capacities. Combining is an array (not RAID)

that is written sequentially to, across the hard drives. By itself, it does not provide any

performance or redundancy benets.

1.6.2 Disk Striping (RAID 0)

The drives show up as one large (single) volume. It is highly recommended to use

identical hard drives for this RAID method. However, you can utilize drives of dierent

capacity, but realize that the RAID size will be based on the smallest capacity total of

the drives used in the RAID set.

Used when speed is the primary objective but RAID Level 0 (also called “striping”) is

not redundant. This array splits each piece of data across the drives in segments. Since

data is written without parity data-checking, it allows for the fastest data transfer rates,

but if one drive fails, the whole array can become corrupted.

1.6.3 Disk Mirroring (RAID 1, only 2 drives installed)

The drives show up as one volume, but only 50% of the total capacity can be used. It

is highly recommended to use identical hard drives for this RAID method. However,

while you can utilize drives of dierent capacity, the RAID size will be based on the

smallest capacity total of the drives used in the RAID set. RAID 1 creates an exact copy

(or “mirror”) of a set of data on the second drive. This is useful when reliability and

backup are more important than capacity. When one drive fails, it can be replaced and

the data rebuilt.

Storage Capacity Data Safety Performance

OWC Mercury Rack Pro mini-SAS Chapter 1 - Introduction

1.6.4 Disk Mirroring with Striping (RAID 10) (also known as RAID 1+0)

The drives show up as one volume, but only 50% of the total capacity can be used,

depending on the drive with the smallest capacity. RAID 10 creates an exact copy (or

“mirror”) of a set of data but also uses a RAID 0 Stripe for speed. When one hard drive

fails, it can be replaced and the data rebuilt automatically.

1.6.5 Disk Striping with dedicated parity (RAID 3)

The drives show up as one volume, but the total capacity, depending on the drive with

the smallest capacity, is the combined size minus the size of one drive. RAID 3 uses

byte level striping with parity data located on 1 disk. Very fast performance can be

achieved with RAID 3.

1.6.6 Disk Striping with distributed parity (RAID 5)

The drives show up as one volume, but the total capacity, depending on the drive with

the smallest capacity, is the combined size minus the size of one drive. RAID 5 uses

block level striping with parity data distributed across all member disks and therefore

provides the perfect balance between high performance and data integrity. When one

hard drive fails, it can be replaced and the data rebuilt automatically.

1.6.7 Clear RAID Mode (also known as Independent)

Each drive will appear as a single volume. If you wish to use a mixed variety of capacity

and model hard drives, this is the mode to use.

NOTE:

Hard drives of identical model are required for all RAID types.

Storage Capacity Data Safety Performance

OWC Mercury Rack Pro mini-SAS Chapter 2 - System Setup

2.1 Drive Installation

NOTE: If you purchased a precongured solution with drives, they will be numbered

for proper installation in individual drive bays. Please match the drive bay numbers to

the hard drives and their trays.

To install your own drive mechanisms:

1. Open the front door on the

OWC Mercury Rack Pro.

2. Install the hard drive as

shown to the left, with the SATA

connector facing away from you.

3. Slide the drive all the way into

the drive bay. It will t ush with

the aluminum frame.

4. Repeat the previous steps for each hard drive you are installing.

NOTE: Be careful to not damage any components, and do not force the drives into

place. If they don’t slide in easily, make sure there are no obstructions.

IMPORTANT:

In most cases, is not possible to add more drives to an existing RAID array or change

the RAID conguration without reformatting. This will depend on your controller card

and the operating system that you are using. Some cards support OLE and ORLM on

the Windows platform. Check your controller card manual for more information.

2 SYSTEM SETUP

OWC Mercury Rack Pro mini-SAS Chapter 2 - System Setup

2.2 Replacing Drives

If one of the drives fail,

the corresponding activity

LED will light up solid red

If only one drive is defec-

tive and your controller

card’s RAID mode is set

to RAID 1, RAID 3, RAID

5, or RAID 10, the data

can still be accessed, but

we strongly suggest that

you replace the faulty

drive mechanism immedi-

ately to assure continued

backup and data safety. To

remove the hard drive from the enclosure, simply use the ip lever located above the

hard drive to eject the drive mechanism.

If more than one drive fails at the same time, or if one drive fails and your controller

card’s RAID mode is not set to a mode with redundancy, data will be lost.

1. Check the Drive LED and replace the faulty drive. The red LED indicates the defective

hard drive. Depending on the controller card you are using, the power may need to be

turned o - check your controller card manual to conrm this. You may be able to leave

the RAID powered on.

2. After replacing the defective drive, power on the OWC Mercury Rack Pro (if neces-

sary).

3. Using the RAID controller card managment software, follow the instructions there or

within the RAID controller card manual to proceed with the rebuild process. Depend-

ing on the card you are using, this may be automatic.

NOTE: Combined drives or independent drives can have the data from the good drives

recovered in most cases.

2.3 Connections to Computer

1. Plug the power cable into the wall and into the OWC Mercury Rack Pro.

2. Verify the voltage switch is set properly for the country you reside in.

3. Connect the mini-SAS port to your controller card.

If sold as a precongured solution, your OWC Mercury Rack Pro is preset as a RAID 5,

using the “Mac OS Extended” format and is ready to use. If you want to change this

conguration, please follow the instructions in Chapter 3 to do so.

A few precautions and notes when using your external storage device:

• Do not expose the product to water or humid conditions.

• Do not cover the enclosure’s ventilation holes.

• Before connecting the device to your computer, install the hard drives.

• For the safe removal of your drive and to assure that no data is lost, always eject or

unmount the drive from your operating system before powering o.

• In order for the computer to access volumes larger than 2TB, both the hard-

ware and Operating System need to support large volumes (e.g.: Windows Vista

32bit/64bit or Mac OS X 10.4 and above).

OWC Mercury Rack Pro mini-SAS Chapter 2 - System Setup

Power Input

Voltage Switch

External mini-SAS Port

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