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May 6th, 2007 00:00

Concatenating Metas in ECC

Hi,

Is it possible to concatenate the meta volumes in ECC? Or you have to dissolve the metas into hypers and then create a new meta from all the hypers.

Thanks.

9 Legend

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20.4K Posts

May 7th, 2007 04:00

yep, if i dont need to preserve any data i just dissolve the meta and create a new one.

9 Legend

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20.4K Posts

May 6th, 2007 13:00

if it's a concatenated meta then you can simply add another hyper to it, if it's a striped meta then it's a bit more involved as it requires moving data to a BCV and then back to new meta. Is it for a windows or unix host ?

9 Posts

May 7th, 2007 02:00

Hi dynamox,

I am asking for a general situation for a striped meta, unmapped with no data. So that does means I have to split up the meta and recreate a new meta of my requirements?

Thanks.

24 Posts

May 7th, 2007 14:00

this is a somewhat trivial situation as you have not mapped the meta anywhere nor is there data to be migrated.
In a more normal situation, a user has outgrown a particular volume and he/she asks for additional storage. You have a striped meta of some size. You could just cat the additional storage onto the existing meta and he will go away happy with the additional storage, but there is a problem: your data is only striped within each stripe set. In other words, your stripes do not extend across the entire volume. this is not efficient.

The only proper way to get around this, AFAIK, is to build another volume of the appropriate size, copy the data over from the old meta to the new meta, and then reclaim the storage from the old meta.
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