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тАО10-25-2012 07:31 AM
тАО10-25-2012 07:31 AM
Hi,
Currently I have two nodes configured P4000. Managed by FOM and forming a cluster.
I purchased two more nodes. How should I configure? Creating a new cluster with two nodes or configuring a cluster with four nodes.
If you choose this last option. How would you set the volumes? RAID 1 mirror? or otherwise?
thanks!
Solved! Go to Solution.
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тАО10-25-2012 01:23 PM
тАО10-25-2012 01:23 PM
SolutionHi,
Are the 2 new nodes the same type and size as the 'old' nodes?
If so, U can add them perfectly first in the management group and then in the existing cluster...
At that moment all existing volumes will be restriped accross the 4 nodes... This is done automatically...
When create a second cluster? When U have nodes with SAS disks and now SATA or SSD for instance... So you create multiple storage pools/clusters...
Kr,
Bart
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тАО10-25-2012 11:38 PM
тАО10-25-2012 11:38 PM
Re: best practice P4000 - 4 nodes
The two new nodes are exactly like the previous (same models and hard drives)
So ... best practice is to add these two new nodes to the existing cluster, forming a cluster of four nodes. How does this affect the volume creation?
I add the volumes with RAID 1 (mirror) or other?
Thank you very much for the answer
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тАО10-25-2012 11:58 PM
тАО10-25-2012 11:58 PM
Re: best practice P4000 - 4 nodes
Hi,
There is no effect on the volume creation...
Currently all data blocks are spread accross the 2 existing nodes... If U ad more nodes, then the data blocks will be spread accross all storage nodes...
The existing volume data blocks will be spread (restriped), all new volumes will be by default created on the 4 nodes... Nothing to do yourself...
Are the 4 systems in the same server room? There is one particular thing that should be take care of if the nodes are spread in 2 seperate server rooms... Then the order of the nodes is quite imprtant...
Kr,
Bart
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тАО10-26-2012 12:23 AM
тАО10-26-2012 12:23 AM
Re: best practice P4000 - 4 nodes
Thank you very much for the reply. I really doubt that would have space available to add more nodes to the cluster
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тАО10-26-2012 12:25 PM
тАО10-26-2012 12:25 PM
Re: best practice P4000 - 4 nodes
Hi,
Currently a cluster supports up to 16 nodes... All data blocks will be spread at that moment accross all 16 nodes...
Kr,
Bart
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тАО11-30-2012 07:20 AM
тАО11-30-2012 07:20 AM
Re: best practice P4000 - 4 nodes
this is a very good sharing and useful to me.