DNS-320 HDDs

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Gianluca Agnocchetti

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Oct 18, 2025, 5:25:30 PM (3 days ago) Oct 18
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Hi, I have a DNS-302 rev B1, and planning to flash Alt-f onto it.

I got 2x 1TB HDD with load of data on them and have no other storage to back those up. 

Would Alt-f recognize my HDD formatted with D-Link stock firmware or it want me to reformat them?

Tom Schmidt

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Oct 18, 2025, 5:44:53 PM (3 days ago) Oct 18
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Alt-F will give you options when you install it on what you want to do with
the disks.  It has the option to leave the data untouched, which is what
you want, so be sure to select that option when it asks.

Tom

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Gianluca Agnocchetti

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Oct 19, 2025, 5:43:24 AM (3 days ago) Oct 19
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Thanks Tom, very useful to know.

So if I leave the data untouched as you say Alt-f will recognize the HDDs format (and data on them) which have been already formatted in whatever format D-Link stock firmware used?

Tom Schmidt

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Oct 19, 2025, 10:52:52 AM (3 days ago) Oct 19
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Yes, the data will remain untouched if you select that option.  You will see a screen similar to this:

Whirl your magic wand...
I want my disk as:
Don't touch my disks in any way!
One big filesystem per disk, for easy management (standard)
Merge all disks in one big filesystem, low data security (JBOD)
Maximum performance and space with two or three disks (one an external USB disk), but low data security (raid0)
Data security, duplicate everything on two disks (and use an external USB disk, if available, as a spare) (raid1)
Data security and space, with two disks plus an external USB disk (raid5). Complex maintenance.

And I want the filesystems to be:
older, stable and faster (ext2)
fast cleaning time, improved reliability (ext3)
recent, faster cleaning time, best reliability, low fragmentation, big files support (ext4)
modern, implementing advanced features while also focusing on fault tolerance, repair and easy administration (btrfs)

Tom

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