Did you check that it is suitable for use with a Mac? Such a large drive might have been formated as NTFS, which OS X cannot, by default, write to. Open up Disk Utilities and have a look at the drive (if it appears there) to see how it is formatted. If it is NTFS you can reformat it to the Native OS X file system. If it doesn't show at all then the drive is faulty. I take it you are using a separate power supply for the disk?
^^^ +1 Especially a Toshiba external drive.
G-Tech, LaCie, CalDigit, and some Promise drives come pre-formatted for OSX, but I'd still reformat them using my own system anyway. This is also a great time to make decisions regarding partitioning, encryption, and what other systems you might want to share the drive with.
Hello, i just bought a new 1.5 Tb Toshiba hard drive. i was to used it with my mac book pro 13 " but it is showing a problem. i cannot store any thing in to it. can someone help me
Bring it back asap.
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DriversMacintoshExternal Hard DriveHard DrivesToshibaMac OS X