IIRC RAID drives must be the same size and type. If you put a larger
drive in than the old RAID array the new RAID will only build to the
old values.

gk

On Wed, May 30, 2012 at 12:00 PM,  <tclug-list-request at mn-linux.org> wrote:
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>   1. Re: Missing partitions? (Mike Hicks)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Wed, 30 May 2012 10:16:16 -0500
> From: Mike Hicks <hick0088 at tc.umn.edu>
> To: TCLUG Mailing List <tclug-list at mn-linux.org>
> Subject: Re: [tclug-list] Missing partitions?
> Message-ID: <1338390976.30732.53.camel at 3po>
> Content-Type: text/plain; charset="utf-8"
>
> On Sun, 2012-05-27 at 15:58 -0500, Brian Wall wrote:
>> I'm rebuilding one of my servers at home.  I used to have (6) 500GB
>> SATA drives in this box, however I recently replaced a few now I have
>> (3) 500G and (3) 2TB drives.
> [snip]
>>  Then I reboot, and /proc/partitions shows:
>>
>>    8        0  488386584 sda
>>    8        1   19530752 sda1
>>    8        2    9765888 sda2
>>    8        3  459086368 sda3
>>    8       16  488386584 sdb
>>    8       17   19535008 sdb1
>>    8       18    9767520 sdb2
>>    8       19  459081472 sdb3
>>    8       48 1953514584 sdd
>>    8       64 1953514584 sde
>>    8       32  488386584 sdc
>>    8       33   19535008 sdc1
>>    8       34    9767520 sdc2
>>    8       35  459081472 sdc3
>>    8       80 1953514584 sdf
>>
>> Hmm.... where'd the partitions go on sdd, sde, and sdf?
>
> I guess my only thought is that those drives are very big, so there
> might be some sort of filtering going on which prevents them from being
> added.
>
> There's a fairly hard limit for DOS-style partition tables which only
> allows them to be 2TB in size.   Those drives are only showing up as
> 1.9-something TB each, so they should be okay, but you might try
> shrinking the partitions slightly to see if they start showing up after
> the boot process.
>
> Or try switching to an fdisk tool that produces a GUID partition table
> (GPT), which shouldn't have problems with partitions of that size.  It
> looks like the tool for that is "gdisk", though I've never used it...
>
> --
> Mike Hicks <hick0088 at tc.umn.edu>
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