Why my new Seagate ST3000DM001 3TB-HDD is shown in "Festplattendienstprogramm" only with 800 GB? The HDD is in an extern Case and should work with Firewire!
Is there any way to get 3 TB or have I to send back the HDD?
iPad, iOS 5.1.1
Open Disk Utility, select the external disk in the sidebar, go to Partition tab and see if the partition uses all the space of the external disk. If not, drag the partition to the end of the bar and apply that change. If it uses all the space of the hard disk, return the external disk
Thank you very much mende1,
I shall try your tipps later this day or tomorrow and tell you what happens!
You're welcome
I've tried it this morning but Diskutility showed the the following screenshot:
There was only one partition with about 800 GB. Do you know what happened and how I can get the full 3 TB. I thought, the 800 GB-problem of 3TB-HDDs happens only with Windows XP but not with Apple. Can it be, that the Seagate ST3000DM01 with SATA III has problems with the external case, it is about three years old.
Today I got a new case for the HDD for 3 TB HDDs. In the Disk Utility it was shown wirh 3 TB and 1 Partition with 800 GB. Trying to expand the Partition to 3 TB an errormessage told me that the media could not be deactivating. I tried to delete the partion but I've got the same message.
Does anyone know what to do?
any application opens that may use your 3TB HDD? it may prevent the system from unmounting the disk to re-partition it. If this disk is empty then you should try just to re-format it.
I've tried this too, but DiscUtility told me, that the media could not deactivated! On the destop the icon of the HDD shows, that 801,36 GB are used and 2 TB are free. The information-window of the HDD shows a capacity of 801,36 GB and free space with 800,72 GB, used space is 640,9 MB.
Why 3 TB HDD shows only 800 GB
