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  Hydra eSATA                                                                                                                 Appendix 

3  Appendix 

3.1  Precautions 

3.1.1  Power on/off precautions 

It is highly recommended to switch the unit off when not in use. When re-locating the device or 
when not in use for an extended period of time, we strongly recommend unplugging the unit. 
 

3.1.2  Location and placing precautions 

Avoid positioning your device in the following places: 

  Locations with direct sunlight, next to radiators, other sources of heat. 

  Locations with very high temperatures (more than 38° C) or humidity (more than 90%). 

  Very dusty or sandy locations. 

  Locations subject to vibration, shock, or with a sloping base. 

 

3.1.3  Electricity and power plug 

Careful attention must be paid to the following points in order to prevent damage, fire, and/or injury: 

  When removing the power cable from the socket, pull on the plug fixture and never on the cord. 

  Do not connect and remove the power cable with wet hands. 

  Keep the power cable away from heaters. 

  Never try to repair the power cable yourself or to modify it in any way. 

  If the unit is dropped or becomes damaged in any other way, unplug the power cable. 

 

3.1.4  Cables 

Use only the cables supplied or recommended by your vendor in order to avoid the risk of 
malfunction, electric shock, and/or possible interference to the device. 
 
 

3.2  FAQ 

Q: Why do I only see one volume in Non-RAID mode even though 4 drives are installed? 
A:

 To mount and access more than one volume, the eSATA host controller needs to support the 

Port Multiplier function. Without it, only one volume will be visible. 
 

Q: What file system should I choose to format my drive? 
A:

 This will depend on how you want to use the drive but in general, we recommend: 

 Windows 

XP/Vista 

Æ

 NTFS 

 Mac 

OS 

Æ

 HFS+ (Mac OS Extended) 

  To use it on both PC and Mac 

Æ

 FAT32 (single file size is limited to 4GB) 

 

Q: How many drives can fail before I loose my data? 
A:

 For RAID 0 and JBOD, any drive failure will result in the data being lost. For RAID 1, RAID 5 

and RAID 10, more than one drive failure at the same time will mean the data can not be 
recovered anymore. For Non-RAID, only the data on the defective drive will be lost. 
 
 

© Copyright 2009 by Macpower & Tytech Technology Co., Ltd. all Rights Reserved 

The information contained in this manual is believed to be accurate and reliable. Macpower & Tytech Technology 
assumes no responsibility for any errors contained in this manual. Macpower & Tytech Technology reserves the right to 
make changes in the specifications and/or design of this product without prior notice. The diagrams contained in this 
manual may also not fully represent the product that you are using and are there for illustration purposes only. Macpower 
& Tytech Technology assumes no responsibility for any differences between the product mentioned in this manual and 
the product you may have.

 

Page 7 

Содержание Hydra eSATA

Страница 1: ...EN 4 Bay RAID Storage Enclosure Hydra eSATA User Manual January 16 2009 v1 0 ...

Страница 2: ... 6 1 Non RAID PM 3 1 6 2 JBOD Disk Spanning BIG 3 1 6 3 RAID 0 Disk Striping FAST 4 1 6 4 RAID 1 Disk Mirroring SAFE 4 1 6 5 RAID 10 Disk Mirroring with Striping SAFE 4 1 6 6 RAID 5 Disk Striping with parity BIG SAFE 4 1 7 About Data Backup 4 2 System Setup 5 2 1 Hard Drive Assembly 5 2 2 Replacing Hard Drives 6 2 3 Connection to Computer 6 3 Appendix 7 3 1 Precautions 7 3 1 1 Power on off precaut...

Страница 3: ...ntical capacities are recommended Supports large volumes in excess of 2TB Note In order for the computer to access volumes larger than 2TB both the hardware and Operating System need to have the capacity to support large volumes e g WinVista 32bit 64bit or Mac OS 10 4 and above 1 2 Package Contents Package content may vary depending on vendor version Hydra eSATA no hard drives included Power cord ...

Страница 4: ...mode settings MODE RAID mode selector button RAID 0 RAID 1 10 RAID 5 Non RAID JBOD HDD A B C D Green HDD status OK Blinking green Accessing data read write OFF Error HDD not installed or power off 1 5 1 Alarm The alarm will sound when a the fan speed is too low or has failed b the temperature goes above 65 C c the power supply located above HDD C D fails or d one of the drives in the RAID array fa...

Страница 5: ...ID Modes For RAID 0 1 10 5 hard drives of identical capacities are recommended If the capacities are different the total amount of the space that can be used will depend on the drive with the smallest capacity Note It is not possible to add more drives to an existing RAID array without re formatting it When adding additional drives at a later point they will be mounted as independent volumes until...

Страница 6: ...riping SAFE The drives are shown as one volume but only 50 of the total capacity depending on the drive with the smallest capacity can be used RAID 1 creates an exact copy or mirror of a set of data This is useful when reliability and backup take precedence over storage capacity When one hard drive fails it can be replaced and the data rebuilt automatically Æ 4 drives 1 6 6 RAID 5 Disk Striping wi...

Страница 7: ... the HDD cassette back into the case push it lightly into place and fasten the screw 4 Repeat the previous steps for each hard drive cassette you are planning to install 5 Turn on the power set the RAID mode and then replace the front panel 6 Connect the drive to your computer create a new partition and format the drives Note Be careful not to damage any components and do not force the drives into...

Страница 8: ... RAID 10 the RAID array will be rebuilt automatically During this process the Rebuild LED will light up green Rebuilding the RAID array will take several hours depending on the drive capacity 60MB s 4 For RAID 0 and JBOD enter the setup menu go through the RAID mode sequence to select the correct mode confirm it and then format the drives again 5 For Non RAID simply format the new drive Note We re...

Страница 9: ...e one volume in Non RAID mode even though 4 drives are installed A To mount and access more than one volume the eSATA host controller needs to support the Port Multiplier function Without it only one volume will be visible Q What file system should I choose to format my drive A This will depend on how you want to use the drive but in general we recommend Windows XP Vista Æ NTFS Mac OS X Æ HFS Mac ...

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