What's the exact recognized size in a 3TB drive?

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What's the exact recognized size in a 3TB drive?

Postby rodenas » Sun Jul 08, 2012 10:10 am

Hi all,

I've got a DuoV1 and I'm planning an upgrade to a DuoV2 in the future. But I'd like to change first a failing 2TB disk. If a buy a 3TB disk and use it in the DuoV1, will it be recognized as a 2TB drive or less than a 1TB as some people suggest?

TIA, greetings.
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Re: What's the exact recognized size in a 3TB drive?

Postby StephenB » Sun Jul 08, 2012 10:22 am

The V1 doesn't support 3 TB drives. I think you get about 766 GB available space if you try to use one.
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Re: What's the exact recognized size in a 3TB drive?

Postby PapaBear » Sun Jul 08, 2012 12:49 pm

The problem is that any disk over 2TB requires a formatting technique (GPID) that the sparc based units cannot support. They are limited to the older MBR method.
Remember - the NAS is not a backup plan.

Backup = Good, No Backup = Bad
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Re: What's the exact recognized size in a 3TB drive?

Postby rodenas » Sun Jul 08, 2012 1:36 pm

OK, thanks. Do you know if there is a way to set the drive into a kind of compatibility mode? (like it used to be with the 32GB or 128GB limits, if I remember well, and configurable by a jumper in the hard drive). Or use the aforementioned MBR method instead of GPID.

Thanks again.
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Re: What's the exact recognized size in a 3TB drive?

Postby StephenB » Sun Jul 08, 2012 2:04 pm

I don't know of any workaround that works with the NAS.
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Re: What's the exact recognized size in a 3TB drive?

Postby PapaBear » Mon Jul 09, 2012 6:11 am

Some of the earliest 3TB drives came with a PC card that had a controller to which you could attach the drive and after loading drives, the drive could be used as a secondary (not boot) drive in a PC that did not support GPID, but I haven't seen them listed in a long time.
Remember - the NAS is not a backup plan.

Backup = Good, No Backup = Bad
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Re: What's the exact recognized size in a 3TB drive?

Postby StephenB » Mon Jul 09, 2012 7:59 am

PapaBear wrote:Some of the earliest 3TB drives came with a PC card that had a controller to which you could attach the drive and after loading drives, the drive could be used as a secondary (not boot) drive in a PC that did not support GPID, but I haven't seen them listed in a long time.
That wouldn't work in the NAS of course.
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Re: What's the exact recognized size in a 3TB drive?

Postby PapaBear » Mon Jul 09, 2012 11:49 am

Of course not, but the 3TB drive won't work in older PC's either.
Remember - the NAS is not a backup plan.

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