After you replace a hard drive the following command is a great tool to see where the array is at during the rebuild process. From the CLI, use the command “lsarraymember progress” to display array member background process status.

At present (2012) IBM does not provide much of a tools set for analyzing Easytier SSD usage. You can get a fair assessment by using the “Storage Tier Advisor Tool”  StorageDisk-2076-STAT 1. After downloading and installing this goto a command line 2. cd Program FilesIBMSTAT 3. Now log into the V7000 GUI and goto Settings

After setting up easytier on your pools, you will more than likely need to turn it off on individual volumes that you do not want consuming the currently very expensive SSD drives. Log into your V7000 through the CLI 1. Type: chvdisk -easytier off NameOfYourVolume 2. Migrate the volume to a new storage pool that

DS4000 and DS5000 IBM Midrange System Storage Hardware Guide Excellent Resource: http://www.techpository.com/wp-content/uploads/2012/05/DS4000-5000Guide.pdf

A drive failed our DS4700 After replacing the drive, I was unable to get the drive that took over as a hot spare to copy the data back to the new drive. I did the following to get around this issue: 1. In system storage DS for the DS4700 click on the Logical Tab. 2.