OWC Mercury Pro Leitfaden

OWC Mercury Rack Pro

ASSEMBLY MANUAL & USER GUIDE

TABLE OF CONTENTS

1. INTRODUCTION............................................................................................................ 1

1.1 MINIMUM 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 FRONT VIEW

1.4.1 Buttons

1.4.2 LED Drive Bay Indicators

1.5 REAR VIEW

1.5.1 Connection

1.5.2 Fan Alarm Mute Button

1.5.3 RAID Selector Switches

1.6 PRECONFIGURED SOLUTIONS

1.7 RAID SETTINGS

1.7.1 Changing the RAID mode

1.7.2 RAID Modes

2. SYSTEM SETUP............................................................................................................... 6

2.1 DRIVE INSTALLATION

2.2 REPLACING DRIVES

3. APPENDIX ......................................................................................................................... 8

3.1 RACK/DESKTOP CONVERSION

3.2 FORMATTING

3.3 UNMOUNTING DRIVES

3.4 ABOUT DATA BACKUP

3.5 TROUBLESHOOTING

3.6 ONLINE RESOURCES

3.7 TECHNICAL SUPPORT HOURS AND CONTACT INFORMATION

OWC MerCury rACK PrO tAble Of COntents

OWC MerCury raCk PrO IntrOduCtIOn

1.1.3 Supported Hard Drives

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

•Drives of identical model are required for all RAID types other than Clear/JBOD (Inde-

pendent Drive) mode and Combine/JBOD (SPAN) mode.

1.2 PACKAGE CONTENTS

FireWire 800

(1394b) cable

eSATA cable

Desktop feet

with Phillips screws (4)

Rack handles (2)

USB 3.0

(A to Standard-B) cable

Power cable FireWire 400

(1394a) cable

INTRODUCTION

Phillips screws for rack

handles (8)

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 ﬁrmware version. Please

visit the product webpage for the most recent speciﬁcations.

1.4 FRONT VIEW

1.1.1 Mac Requirements

•PowerPC G4 CPU, 128MB RAM

•eSATA: Mac OS X 10.3 or later

•FireWire: Mac OS X 10.2 or later

•USB 3.0 (backwards compatible to

USB 2.0): Mac OS X 10.2 or later

1.1.2 PC Requirements

•500MHz Intel Pentium 3 CPU, 128MB RAM

•eSATA: Windows XP or later

•FireWire: Windows 2000/XP or later

•USB 3.0 (backwards compatible to USB

2.0): Windows 2000/XP or later

1.1 MINIMUM SYSTEM REQUIREMENTS

Bumpers for rack handle

screw holes (2)

OWC MerCury raCk PrO IntrOduCtIOn

1.4.1 Buttons

The “Power On/Oﬀ” and “Set/Mute”

buttons are inside the front door on

the left side. The SET/MUTE button

is used for setting the RAID modes

(covered in Section 1.7, RAID Set-

tings) and disabling the audible

alarm when there is a drive failure.

1.4.2 LED Drive Bay Indicators

Each drive bay has a multicolor LED indicator.

Power:

•Oﬀ = power oﬀ

•Blue = power on

•Pink = power on (advanced format drives)

Access:

•Flashing purple = drive being accessed

Rebuild:

•Blinking red = rebuilding RAID array

•Solid red = faulty drive

Power Input eSATA FW400

USB 3.0

FW800

1.5 REAR VIEW

1.5.1 Connection

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

2. Connect the eSATA, FireWire 800, FireWire 400, or USB 3.0 cable – appropriate for the

interface that your computer supports – into the drive and computer. (eSATA or USB

3.0 interfaces are recommended for maximum performance)

NOTE:

•Only one interface (eSATA, FW800, FW400, USB 3.0) at a time can be used. When more

than one interface cable is connected, the fastest interface has priority.

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

mount the drive from your operating system before powering oﬀ.

•In order for the computer to access volumes larger than 2TB, the operating system

needs to support large volumes (e.g., Windows Vista or Mac OS X 10.4 and above).

OWC MerCury raCk PrO IntrOduCtIOn

1.5.2 Fan Alarm Mute Button

In the event one of the fans within the OWC Mercury Rack Pro fails, an alarm will sound.

The “Fan Alarm Mute” button located on the rear panel of the unit will mute the alarm. It

is recommended to replace the failed fan as soon as possible in order to adequately cool

the unit, prevent damage to components, and avoid data loss.

1.5.3 RAID Selector Switches

To adjust your RAID settings, there are 3 switches on

the back of the OWC Mercury Rack Pro.

Use the silkscreened chart as a guide when adjust-

ing the switches to the desired RAID setting. Pro-

ceed to section 1.7 for instructions on changing the

RAID levels on the OWC Mercury Rack Pro.

1.6 PRECONFIGURED STORAGE SOLUTIONS

If you purchased your Rack Pro as a preconﬁgured solution with hard drives included, the

drives have been conﬁgured as a RAID 5 volume and that volume has been preformatted. To

install the drives, see section 2.1. For formatting information, including how to format your

Rack Pro for Mac or Windows, go to: h t t p:// www.macsales.com/format

1.7 RAID SETTINGS

1.7.1 Changing the RAID Mode

IMPORTANT NOTE: Drives of identical model are required for all RAID types other than

Clear/JBOD (Independent Drive) mode and Combine/JBOD (SPAN)

mode.

IMPORTANT NOTE: Changing the RAID settings requires you to set the Rack Pro to

“Clear RAID” mode between each mode change.

To switch or clear RAID modes, follow these three steps (continued on next page):

1. With the OWC Mercury Rack Pro turned oﬀ, adjust the switches on the back of the unit

to the desired setting (either to “Clear RAID” mode or to a RAID level).

2. While holding down the “Set/Mute” button, power on the OWC Mercury Rack Pro.

Keep holding the “Set/Mute” button until you hear a full beep (you may hear shorter

chirps or beeps while the unit is setting itself into the RAID mode). The lights on the

Rack Pro will also ﬂash during this process and will stop ﬂashing when complete.

WARNING: Changing the RAID setup will require you to

reformat the drives. Reformatting will delete all of the

existing data on the drives!

OWC MerCury raCk PrO IntrOduCtIOn

3. The OWC Mercury Rack Pro is now set to the new mode. If the Rack Pro has just been

set to “Clear RAID” mode, you can now repeat steps 1 and 2 to apply a RAID setting. If

the Rack Pro has just been set to a RAID mode, it is now ready to be formatted. Instruc-

tions for formatting can be found at: h t t p:// www.macsales.com/format

1.7.2 RAID Modes

IMPORTANT NOTE: Drives of identical size and model are required for all RAID types

other than Clear/JBOD (Independent Drive) mode and Combine/

JBOD (SPAN) mode.

Clear/JBOD (Independent Drive) Mode

Switch setting: DOWN-DOWN-DOWN

Each drive will appear as a single volume. If you intend to use hard drives of diﬀering ca-

pacity and model, this is the mode to use. To swap or replace drives, unmount all drives

and power the OWC Mercury Rack Pro oﬀ.

Combine/JBOD (SPAN) Mode

Switch setting: UP-DOWN-UP

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

installed; you can use drives of diﬀerent capacities. JBOD (SPAN) is an array (not RAID) in

which the data is written sequentially across the drives. This combines the capacities of

the drives, but it does not provide any performance or redundancy beneﬁts.

RAID 0 “Drive Striping” Mode

Switch setting: UP-UP-UP

The drives show up as one large single volume with a size equal to the combined ca-

pacities of all the drives used in the array. RAID 0 is used when speed is the primary

objective, but it does not have any redundancy for protection. Data is alternated very

quickly across two or more drives to gain speed by distributing the workload. This allows

for the fastest data transfer rates, since data is written without pausing to check parity

information, but if one drive fails, the whole array can become corrupted and data will

be lost. Always maintain a backup of your data!

Storage Capacity Data Safety Performance

WARNING: Changing the RAID mode will require you to

reformat the drives. Be sure to back up your data rst!

OWC MerCury raCk PrO IntrOduCtIOn

RAID 1 “Drive Mirroring”Mode (2 Drives Installed)

Switch setting: UP-UP-DOWN

The drives show up as one volume with a size equal to the capacity of one of the two

drives used in the array. RAID 1 copies (or“mirrors”) a set of data from the ﬁrst drive to the

second drive. This is useful when reliability and backup are more important than capac-

ity. When one drive fails, it can be replaced and the data will be rebuilt automatically.

RAID 10 “Drive Mirroring with Striping”Mode (4 Drives Installed)

Switch setting: UP-UP-DOWN

The drives show up as one volume with a size equal to the combined capacities of half

of the drives used in the array. RAID 10 creates an exact copy (or“mirror”) of a set of data

but also uses a RAID 0 “stripe” for speed. When one drive fails, it can be replaced and the

data will be rebuilt automatically.

RAID 3 “Drive Striping with Dedicated Parity” Mode

Switch setting: UP-DOWN-DOWN

The drives show up as one volume with a size equal to the combined capacities of all

the drives in the array, minus one drive. RAID 3 uses byte-level striping, with parity infor-

mation located on 1 dedicated parity drive. Very fast performance can be achieved with

RAID 3 while also maintaining fault protection, so if one drive fails, it can be replaced and

the data will be rebuilt automatically.

RAID 5 “Drive Striping with Distributed Parity” Mode

Switch setting: DOWN-UP-DOWN

The drives show up as one volume with a size equal to the combined capacities of all

the drives in the array, minus one drive. RAID 5 uses block-level striping with parity data

distributed across all disks and therefore provides the perfect balance between high

performance and data integrity. When one drive fails, it can be replaced and the data

will be rebuilt automatically.

Storage Capacity Data Safety Performance

OWC MerCury raCk PrO SySTeM SeTuP

SYSTEM SETUP

2.1 DRIVE INSTALLATION

NOTE: If you purchased a preconﬁgured solution with drives included, each drive has

a diﬀerent colored dot on it. When installing the drives, match these dots to the

corresponding dots on each drive bay.

To install drive mechanisms:

1. Open the front door on the OWC Mercury

Rack Pro.

2. Install the drive as shown to the right, with

the SATA connector facing away from you.

3. Slide the drive all the way into the drive bay.

It will ﬁt ﬂush with the aluminum frame.

4. Repeat the previous steps for each drive

you are installing.

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

place. If they do not slide in easily, make sure there are no obstructions.

2.1.1 Adding Drives to an Existing RAID Set

It is not possible to add more drives to an existing RAID array or change the RAID con-

ﬁguration without reformatting. In order to add more drives, the existing RAID must ﬁrst

be cleared using steps 1 and 2 in Section 1.7.1, Changing the RAID Mode. After clearing

the RAID, a new RAID set may be created including any additional drives.

2.1.2 Adding Drives to an Independent (Clear RAID) Set

You can remove any drive from a Clear RAID set and replace it with another drive.

IMPORTANT NOTE: To avoid data corruption it is essential to unmount all drives and

power the unit oﬀ before removing or adding a new drive. If you

physically eject or remove a drive from the OWC Mercury Rack

Pro without powering oﬀ the unit ﬁrst, any mounted drives will

improperly unmount from the computer.

OWC MerCury raCk PrO SySTeM SeTuP

2.2 REPLACING DRIVES

When one of the drives fails, the corresponding activity LED will light up solid red and the

alarm will sound. To disable the alarm, press the “Set/Mute” button once. If only one drive

is defective and the RAID mode is set to RAID 1, RAID 3, RAID 5, or RAID 10, the data can still

be accessed, but it is strongly suggested that you replace the faulty drive mechanism im-

mediately with an identical model/capacity drive to assure continued data safety. To remove

the drive from the enclosure, simply use the ﬂip lever located above the drive to eject the

drive mechanism.

If more than one drive fails at the same time, or if one drive fails and the RAID mode is set

to RAID 0 or Combine/JBOD (SPAN), the data is lost (in Combine mode, only the data stored

on the one failed drive is lost) and the system cannot be accessed again until the drive(s) are

replaced and a new array is built.

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

drive. You do NOT need to power the enclosure oﬀ to do this.

2. For RAID 1, RAID 3 RAID 5, and RAID 10, the RAID array will be rebuilt automatically. Dur-

ing the rebuild process, the drive LED will ﬂash red. Rebuilding the RAID array will take

several hours to days, depending on drive capacity. Once the rebuild is complete, the

LED will turn oﬀ, or ﬂash red with activity. Power cycle the rack enclosure to return the

LED to normal operation.

3. For RAID 0 and Combine/JBOD (SPAN) modes, the corresponding LED will turn blue,

showing that the defective drive has been replaced and a good drive is inserted into

the bay. You will need to clear and reset your RAID. See Section 1.7.1, Changing the

RAID Mode for details on how to do that.

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

recovered in most cases.

NOTE: We recommend not turning the power oﬀ during the rebuild process, but if power

is interrupted, the data will continue rebuilding as soon as the power is restored. The

OWC Mercury Rack Pro does not need to be connected to a computer for the rebuild

process to take place.

OWC MerCury raCk PrO aPPeNDIX

3.1 RACK/DESKTOP CONVERSION

The OWC Mercury Rack Pro comes with two rack handles to help move the Rack Pro into

and out of a rack system. Four rubber feet are also included for use in a desktop environ-

ment. The rack handles and desktop feet are included with the unit, but have not been

installed. Use a Phillips screwdriver to install either the handles or feet, depending on how

you intend to use the Rack Pro. Two padded bumpers are included to cover the screw holes

that are not used by the rack handles when the Rack Pro is conﬁgured as a desktop solution.

3.2 FORMATTING

For formatting information, including instructions on how to format your OWC Mercury

Rack Pro for Mac or Windows, go to: h t t p:// www.macsales.com/format

3.3 UNMOUNTING DRIVES

To properly unmount any connected drives from your computer, you need to follow a few

simple steps.

For Mac OS X systems:

There are two main methods to umount disks with Mac OS X systems. Either drag the

icon for the disk you wish to unmount to the trash can, or right-click the disk icon on the

desktop, then click “Eject”.

For Windows systems:

1. Go to the System Tray (located in the lower right corner of your screen). Click on the

“Eject” icon (a small green arrow over a hardware image).

2. A message will appear, detailing the devices that the “Eject” icon controls, i.e., “Safely

remove...” Click on this prompt.

3. You will then be given the following message. “Safe to Remove Hardware”. It is now

safe to unhook the OWC Mercury Rack Pro from the computer.

3.4 ABOUT DATA BACKUP

To ensure that your ﬁles are protected and to prevent data loss, we strongly suggest that

you keep two copies of your data: one copy on your OWC Mercury Rack Pro and a second

copy on either your internal drive or another storage medium, such as an optical backup, or

on a second external storage unit. Any data loss or corruption while using the OWC Mercury

Rack Pro is the sole responsibility of the user, and under no circumstances will Other World

Computing be held liable for compensation or the recovery of any lost data.

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