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Adding disks to diskgroup [message #612970] Mon, 28 April 2014 07:14 Go to next message
altaff
Messages: 16
Registered: January 2014
Location: india
Junior Member
Hi all,

Here's a question needs to be solved.
Iam having a diskgroup with some disks and I added few more disks to that group.
As we know that ASM Re-balancing happens.
But, suppose there is data about 10-20 TB in my disks.
How does Oracle internally manages ? because spreading that much of data to all new disks is a joke.
Thanks
Re: Adding disks to diskgroup [message #612971 is a reply to message #612970] Mon, 28 April 2014 07:15 Go to previous messageGo to next message
John Watson
Messages: 7255
Registered: January 2010
Location: Global Village
Senior Member
In what way is it a joke?
Re: Adding disks to diskgroup [message #612972 is a reply to message #612971] Mon, 28 April 2014 07:20 Go to previous messageGo to next message
altaff
Messages: 16
Registered: January 2014
Location: india
Junior Member
Joke In the sense spreading that whole data will not be that much easy. will take lots of time.
How Oracle manages it internally?
Re: Adding disks to diskgroup [message #612975 is a reply to message #612972] Mon, 28 April 2014 07:25 Go to previous messageGo to next message
John Watson
Messages: 7255
Registered: January 2010
Location: Global Village
Senior Member
Rebalancing is done by background processes launched by the ASM instances. You can control how many processes. You can monitor the progress of the operation.
Re: Adding disks to diskgroup [message #612976 is a reply to message #612972] Mon, 28 April 2014 07:25 Go to previous messageGo to next message
Michel Cadot
Messages: 65377
Registered: March 2007
Location: Nanterre, France, http://...
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Account Moderator

It manages it well.
What do you want to know EXACTLY?

Re: Adding disks to diskgroup [message #612977 is a reply to message #612976] Mon, 28 April 2014 07:27 Go to previous messageGo to next message
altaff
Messages: 16
Registered: January 2014
Location: india
Junior Member
I want to know that whether ORACLE really spread that much amount of data in new disks or is there any other methodology?
Re: Adding disks to diskgroup [message #612984 is a reply to message #612977] Mon, 28 April 2014 08:05 Go to previous messageGo to next message
BlackSwan
Messages: 25848
Registered: January 2009
Location: SoCal
Senior Member
yes

Please read and follow the forum guidelines, to enable us to help you:

http://www.orafaq.com/forum/t/88153/0/ and please read http://www.orafaq.com/forum/t/174502/102589/
Re: Adding disks to diskgroup [message #612989 is a reply to message #612977] Mon, 28 April 2014 08:38 Go to previous message
Michel Cadot
Messages: 65377
Registered: March 2007
Location: Nanterre, France, http://...
Senior Member
Account Moderator

Yes it spreads them which does mean it moves all of them.

[Updated on: Mon, 28 April 2014 08:38]

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