09-04-2011, 09:54 AM
Thanks for replying. I have just, as suggested by Verbatim helpdesk, tried attaching the drive to my old Windows laptop (with pc plugged into mains) and it's not recognised there, either - nothing in 'Computer' although it appeared to transfer the software. Could I be unlucky and have had TWO faulty drives? I think I have to go back to the store with drive and Mac and see if they have a solution - or at least a device which works.
To reply to your queries:
Drive's own USB 3 cable connected to Mac. Mac plugged into mains. No mains power cable came with drive and it has nothing other than its USB socket. Blue power light appears on drive. Same if I plug drive into Mac when I am running it on battery.
When I attach the drive to the Mac, Time Machine appears in the Finder menu under devices but clicking further doesn't let me see what is on the external drive. Verbatim helpdesk said I should have their icon on my desktop - no sign.
I get this information displayed in disk utilities (and helpdesk had me look at partitions and repair etc):
Disk Description : SAMSUNG HM501II Media Total Capacity : 500.11 GB (500,107,860,480 Bytes)
Connection Bus : USB Write Status : Read/Write
Connection Type : External S.M.A.R.T. Status : Not Supported
USB Serial Number : 203211194473 Partition Map Scheme : GUID Partition Table
subtitle under this in the disk utitlities menu is
Time Machine backups:
Mount Point : /Volumes/Time Machine Backups Capacity : 499.76 GB (499,763,888,128 Bytes)
Format : Mac OS Extended (Case-sensitive, Journaled) Available : 466.72 GB (466,715,099,136 Bytes)
Owners Enabled : No Used : 33.05 GB (33,048,788,992 Bytes)
Number of Folders : 152,641 Number of Files : 499,206