208 Implementing the IBM Storwize V7000 with IBM Spectrum Virtualize V8.2.1
Figure 6-24   Internal storage pane
The pane gives an overview of the internal drives in the system. Select All Internal in the 
drive class filter to display all drives that are managed in the system, including all I/O groups 
and expansion enclosures. 
Select All Internal under the Drive Class Filter to display all the drives that are installed in the 
managed system, including attached expansion enclosures. Alternatively, you can filter the 
drives by their type or class. For example, you can choose to show only Enterprise drive class 
(serial-attached Small Computer System Interface (SCSI) or (SAS)), Nearline SAS, or Flash 
drives. Select the class of the drives on the left side of the pane to filter the list and display 
only the drives of the selected class.
You can find information on the capacity allocation of each drive class in the upper right 
corner, as shown in Figure 6-24: 
/SM590000MDisk Capacity shows the storage capacity of the selected drive class that is assigned to 
MDisks. 
/SM590000Spare Capacity shows the storage capacity of the selected drive class that is used for 
spare drives. 
/SM590000Total Capacity shows the overall capacity of the selected drive class. 
If All Internal is selected under the drive class filter, the values that are shown refer to the 
entire internal storage. 
The percentage bar indicates how much of the total capacity is allocated to MDisks and spare 
drives. MDisk capacity is represented by dark blue and spare capacity by light blue.
To list all available in the system internal drives, use CLI command lsdrive. If needed, you 
can filter output to list only drives that belong to particular enclosure, only that have specific 
capacity, or by another attributes. For an example, see Example 6-11.
Example 6-11   lsdrive output (some lines and columns are not shown)
IBM_Storwize:ITSOV7K:superuser>lsdrive
id status error_sequence_number use       tech_type       capacity mdisk_id 
0  online                       member    tier_enterprise 278.9GB  0 
1  online                       member    tier_enterprise 278.9GB  0 
<...>
7  online                       member    tier_enterprise 558.4GB  16 
8  online                       member    tier_enterprise 558.4GB  16 
<...>
14 online                       spare     tier_enterprise 558.4GB 
15 online                       candidate tier_enterprise 558.4GB