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anupampushkar
Contributor
Contributor

Storage Questions

We have two more queries,


1. If we unmount> detach> delete the datastore from one cluster and we utilize the same LUN for other cluster to create the datastore. Will the data still be present in the LUNs.

2. One datastore is having one LUN of 2 TB. we want to remove the datastore and use same LUN for other Cluster, to increase the size of the LUN e.g. 5 TB to 7 TB.


Are the following condition possible and recommended by VMware.


might be foolish question but need to clear my confusion.

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a_p_
Leadership
Leadership

  1. Unmounting/detaching a datastore will leave the data intact. However, deleting a datastore will wipe the VMFS partition!
  2. There are actually two ways to increase the size of a datastore. The first one - adding an additional LUN as an extent - is how it was usually done in the past, where the maximum LUN size was restricted to 2TB. With vSphere 5 the max. LUN size can be up to 64TB, so the way to increse the size of a datastore would be to delete the existing datastore, delete the LUN on the storage system to free up disk space and then increase the size of the existing LUN/datastore. In both cases, the data on the "old" datastore cannot be preserved.

André

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admin
Immortal
Immortal


1.    A :  No data will not be present in the LUN's , you will lose all the data since the VMFS partition is deleted and thereby removing all the data.

2. A : yes it possible to change but it depends on version of the ESXi - it is possible only on  VMFS 5 and it is recommended by Vmware to use VMFS 5

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