Glyph gt0621f-1000 信息指南
large volumes, but not requiring the speed of RAID 0. Spanning does not provide any performance or redundancy
benefits.
benefits.
• In RAID 0 (striping) mode, the two drives are seen as one large drive, but here, reading and writing occurs on both
drives simultaneously. It is designed to increase the performance and data throughput of the drive system. The built-
in RAID 0 controller splits each piece of data across both of the drives in segments and distributes the I/O burden.
Since data is written without any form of parity data-checking, it allows for the fastest data transfer of all other
RAID levels. However, if one drive becomes damaged, the whole array can become corrupted. Both drives are seen
by the computer as one large drive, and you will need to format this drive to be seen as a volume by your computer.
RAID 0 is not redundant or fault tolerant like RAID levels 1, 3, and 5, but the tradeoff is that it’s the fastest of all
RAID levels. MAKE SURE TO BACKUP YOUR DATA!
in RAID 0 controller splits each piece of data across both of the drives in segments and distributes the I/O burden.
Since data is written without any form of parity data-checking, it allows for the fastest data transfer of all other
RAID levels. However, if one drive becomes damaged, the whole array can become corrupted. Both drives are seen
by the computer as one large drive, and you will need to format this drive to be seen as a volume by your computer.
RAID 0 is not redundant or fault tolerant like RAID levels 1, 3, and 5, but the tradeoff is that it’s the fastest of all
RAID levels. MAKE SURE TO BACKUP YOUR DATA!
• In RAID 1 (mirroring) mode, the two drives are seen as one drive but with half the capacity of the two together.
Reading and writing occurs on both drives simultaneously so that each of the drives contains exactly the same data,
mirroring each other. If either of the drives should fail the other is there to seamlessly continue to provide operation.
mirroring each other. If either of the drives should fail the other is there to seamlessly continue to provide operation.
Switching between drive modes
READ THIS FIRST!
Changing the drive mode with the Glyph Manager software utility will require you to re-format the GT
062, and result in erasing all of the current data on the drive. Make sure you backup all data before
doing so!
062, and result in erasing all of the current data on the drive. Make sure you backup all data before
doing so!
Drive mode changes are done by using the Glyph Manager software utility (not the OS X or Windows disk utilities). To
change the drive mode, open the Glyph Manager, choose your drive from the list on the left, click the Change Drive
Configuration button, and select the desired configuration on the following screen. Information on installation and operation
of the Glyph Manager can be found on page 3 of this Quickstart Guide. Switching drive modes will require power cycling
and re-formatting the drives with your operating system to create a volume that your computer can use. As a general rule, use
Mac OS Extended (Journaled) volumes on Mac OS X and NTFS volumes on Windows systems. Formatting the drive(s) after
changing the mode is done with the OS X or Windows disk utilities. More can be found about formatting on our website. All
Glyph drives are formatted for Mac OS before leaving our production facility, and the GT 062 will be set to JBOD mode.
change the drive mode, open the Glyph Manager, choose your drive from the list on the left, click the Change Drive
Configuration button, and select the desired configuration on the following screen. Information on installation and operation
of the Glyph Manager can be found on page 3 of this Quickstart Guide. Switching drive modes will require power cycling
and re-formatting the drives with your operating system to create a volume that your computer can use. As a general rule, use
Mac OS Extended (Journaled) volumes on Mac OS X and NTFS volumes on Windows systems. Formatting the drive(s) after
changing the mode is done with the OS X or Windows disk utilities. More can be found about formatting on our website. All
Glyph drives are formatted for Mac OS before leaving our production facility, and the GT 062 will be set to JBOD mode.
Frequently Asked Questions
Q: Do I need any drivers to use the GT 062?
No drivers are required to read and write to the drive using FireWire or USB. A driver is required to use the Glyph Manager to change
configuration or monitor drive status using FireWire. All necessary drivers are installed as part of the Glyph Manager installation.
Q: My Windows computer doesn’t show the drive in My Computer. What’s up?
The default format on the GT 062 is for the Macintosh, and Windows doesn’t recognize it. Once you have connected the GT 062 to your
Windows PC, you have to re-initialize it for use with Windows. For Windows XP and 2000, that’s going to be NTFS format; for
Win98/SE, that will be FAT32 format. Instructions for re-initializing your drive are on the Glyph website.
Q: I’m still running Mac OS 9 or Win/ME. Can I still use the GT 062?
Yes. You can connect either the FireWire 400 port or the USB port on the drive to your OS 9 or Win/ME machine. You cannot run Glyph
Manager to change configuration or monitor drive status, however the GT 062 will run in the last drive mode that it was set to.
Q: Do I need RAID software?
RAID software is not needed because the RAID intelligence is built into GT 062 hardware. To configure as a RAID 0 or RAID 1 array, use
the Glyph Manager software to switch drive modes, and format the drive as one large volume. Instructions for re-initializing your drive are
on the Glyph website.
Q: What are the differences between FireWire 800 and FireWire 400?
Speed and Protocol. FireWire 800 has a max transfer rate of 800 Mb/sec (about 100 MB/sec peak). FireWire 400 has a max transfer rate of
400 Mb/sec (about 50 MB/sec peak). The higher bus speed helps with things like large file copies and RAID, where FireWire 400 bus
speed can be a limiting factor. FireWire 800 uses IEEE-1394b “Beta” protocol; FireWire 400 uses IEEE-1394a “DS” protocol.