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Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

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Old 10-27-2007, 08:09 AM   #1
magli
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Registered: Nov 2005
Location: South Tirol, Italy
Distribution: gentoo/ubuntu
Posts: 19

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Formatting Freecom Datatank in RAID0 with EXT3


Hello.

I just got a 1TB Freecom Datatank: it's an external hdd case with two 500GB drives in it.

The device came with a windows-only utility which lets you set it to either JBOD, RAID0 (mirroring) or RAID1. I used a friends computer to set it to mirroring, after which the drive was automatically formatted in NTFS.

NTFS was working fine on my ubuntu machine. But I prefer using EXT3, so I reformatted the drive using qparted. Upon formatting, I noted the following output in my shell:
Code:
- FORMAT /dev/sdh1 ext3
Error: File system has an incompatible feature enabled.
Also, if I check the properties of the drive using gnome, it tells me that 23GB are in use: (I have not written anything to it yet)
Screenshot: http://www.suedbalkon.eu/DataTank_properties.png

However, this is not what df -h reports:
Code:
magli@mogster:~$ df -h /dev/sdh1
Filesystem            Size  Used Avail Use% Mounted on
/dev/sdh1             459G  199M  435G   1% /media/DataTank
Why the inconsistency?

Apart from this, everything seems to work fine. However, I want to be sure that the mirroring mode is still functioning properly. I guess this mainly depends on how it is implemented on the device. Does anybody here know if I can rest assured? Would you, in my shoes, be confident that my data is going to be retrievable on one of the disks in case one fails?

Cheers.
 
  


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