Viewing the array disk drive module status

Complete this task to view the status of an array disk drive module (DDM) using DS CLI commands.

The machine type 1750 contains at least one storage enclosure, with a minimum of four DDMs.

The DDMs of a storage enclosure are partitioned into array sites. A machine type 1750 array site consists of four DDMs in one storage enclosure of a storage enclosure pair, with two-to-eight (four DDM) array sites per storage enclosure pair. All array sites of a storage enclosure pair have identical capacity, rpm, and interface characteristics, and an interface to a common DA pair.

The DDMs of a storage enclosure are partitioned into array sites. The creation of arrays is based on the array sites that are associated with the storage unit. Before and after creating an array you might want to check on the status of the DDMs.

Perform the following steps to view the DDM status:

Issue the lsddm command to obtain a list and status of the DDMs currently associated with the storage unit. Enter the lsddm command at the dscli command prompt with the following parameters and variables:
```
dscli>lsddm -l storage_image_ID
```
Issue the showarraysite command after you have created an array using the DDMs. Enter the showarraysite command at the dscli command prompt with the following parameters and variables:
```
dscli>showarraysite storage_image_ID -fullid site_ID
```
Notes:
1. The storage image ID is optional. You do not have to specify it but, if you choose not to use it, you need to provide a fully qualified site_ID which includes the manufacture, model type, and serial number information.
2. The site-ID parameter is a four-digit number preceded by the letter "S" with no leading zeros.
3. The -showarraysite command provides the following DDM information that is associated with the DDM after the array has been created:
  - DDM serial number
  - Spares - Identifies, if any, the number of spare DDMs that are allocated from the array site.
  - Data DDM - Specifies the number of data DDMs. This value is based on the number of DDMs minus the number of spares.