Expanding a Vinum RAID-5 array

[Greg 'groggy' Lehey]

On Saturday, 12 July 2003 at 20:46:14 -0600, Tillman wrote:
> On Sat, Jul 12, 2003 at 06:29:25PM -0700, Bill Campbell wrote:
>> On Sun, Jul 13, 2003 at 09:36:29AM +0930, Greg 'groggy' Lehey wrote:
>>> On Sunday, 13 July 2003 at  0:07:04 +0200, Joachim Dagerot wrote:
>> ....
>>>> Do anyone know other (read hardware) RAID-systems that are known to
>>>> work well with freeBSD and also allows me to increase the total
>>>> diskspace without dataloss?
>>>
>>> I don't.
>>
>> The problem isn't the RAID system, but the UFS file system which doesn't
>> allow expansion.  Vinum's ``concat'' mode allows one to add capacity, but
>> not to expand the size of existing file systems.
>>
>> Are there any file systems that work with FreeBSD that allow expansion
>> after the fact?
>
> Is there something about grows(8) that I'm missing? It's entirely
> possible that I've missed the context or something, but I'm grown
> UFS filesystems (on vinum concat's, actually) several times wih great
> success.

You're not missing anything.  It looks as if Bill doesn't know about
growfs.

Greg
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