Planning for Additional Storage Capacity 10.7.01

Administrators are not only asked to assign storage resources but also to plan for both current and future storage requirements. Because under-purchasing and over-purchasing capacity will respectively result in downtimes and wasted storage, both situations must be prevented. Smooth storage administration can only be achieved if administrators can answer the questions below:

• • When will storage pools be running out of capacity?
  • By how much the capacity of their storage pools must be extended to meet allocation requirements?
  • Are there enough unused disks in the storage systems to extend the capacity of the existing storage pools?

With this information, they will be able to guarantee enough remaining space to answer allocation requests as quickly as possible.

When will storage pools be running out of capacity?

1. Access the Storage Systems page:
   1. Log on to the TrueSight console
   2. In the Navigation pane, click Capacity Views > Storage > Storage Systems
      
2. Click the Storage Pools tab.
   
3. Verify the capacity of your storage pools and more especially:
   1. their total space (Capacity metric).
   2. the total space not consumed (Available Capacity metric).
   3. the space actually consumed (Consumed Capacity metric).
4. Display storage pools that are at a risk of being saturated:
   1. Click  next to No Saturation Risk Filter and select Apply Saturation Risk Filter
   2. Select Near saturation
   3. Click Apply. 
      
      

You will now be able to take the necessary actions at the right time to ensure that storage pools will never run out of capacity.

By how much the capacity of their storage pools must be extended to meet allocation requirements?

1. Access the Storage Systems page:
   1. Log on to the TrueSight console
   2. In the Navigation pane, click Capacity Views > Storage > Storage Systems
      
2. Click the Storage Pools tab.
   
3. Click the storage pool of your choice to display its details and check its Consumed Capacity Trendline.

After completing the above steps, you should know exactly by how much the capacity of your storage pool needs to be extended.

Are there enough unused disks in the storage systems to extend the capacity of the existing storage pools?

Before purchasing additional space, administrators can also check if there are unused disks in their storage systems that could still be used to extend the capacity of the existing storage pools. To perform this verification:

1. Access the Storage Systems page:
   1. Log on to the TrueSight console
   2. In the Navigation pane, click Capacity Views > Storage > Storage Systems
      
2. Click the storage system for which you wish to check the number of unused disks.
3. In the Capacity Summary graph, check the value of the Available Capacity for Storage Pools metric.
   

You now know which disks can be used to extend the capacity of your storage pools.