Products/HA/DellRedHatHALinuxCluster/Storage/EqualLogic PS-Series/Storage Configuration
EqualLogic PS-series storage arrays include storage virtualization technology. To better understand how these arrays operate, it is helpful to be familiar with some of the terminology used to describe these arrays and their functions:
- Member: a single PS-series array is known as a member
- Group: a set of one or more members that can be centrally managed
- Pool: a RAID that can consist of the disks from one or more members
- Volume: a LUN or virtual disk that represents a subset of the capacity of a pool
- Non-Tiered Configuration: a group that contains a single pool
- Tiered Configuration: a group that contains multiple pools
When a member is initialized, it can be configured with RAID 1/0, RAID 5, or RAID 5/0. The EqualLogic PS-series arrays provide automatic load balancing of volumes among members that participate in the same pool; this can improve the aggregate performance of all of the configured volumes without administrative input.
For more information on all procedures below, consult the Dell EqualLogic User's Guide.
Initialize the Array
The following steps only need to be performed during the initial setup of the Storage Array.
Initialize a serial console connection as described in Serial Console Configuration.
Press enter until you see a login prompt. Login with the default user and password of grpadmin
login: grpadmin Password: grpadmin
NOTE: The password will not display any characters to the screen
If you see the following message then you are connected to the secondary controller:
Because you have logged into the secondary control module, you can perform only service operations for this control module; array and group management operation s are not available. Connect to Port 0 on the other control module (the active c ontrol module) to perform array and group management operations
The following prompt will appear the first time you login:
It appears that the storage array has not been configured. Would you like to configure the array now ? (y/n) [n]y
Enter y to configure the array and to proceed:
Do you want to proceed (yes | no ) [no]:yes Initializing. This may take several minutes to complete..
Create a member name for your array:
Member name :member-name
Accept the default of eth0 for the Network Interface, and enter an IP address.
NOTE: This IP is only used internally, iSCSI discovery and login by the initiators will be performed using the group IP address configured in a later step.
Network interface [eth0]: IP address for network interface : 192.168.100.10 Netmask [255.255.255.0]: Default gateway [192.168.100.1]: 192.168.100.254
Join or create a group name and IP address which serves as the management and iSCSI portal interface:
Group name : group-name Group IP address : 192.168.100.1 Searching to see if the group exists. This may take a few minutes. Do you want to create a new group (yes | no) [yes]:y Group Configuration Group Name: group-name Group IP address: 192.168.100.1 Do you want to use the group settings shown above (yes | no) [yes]: y
Assign the requested passwords to complete the setup utility.
You will now see a prompt with your group name:
To logout of the group management interface:
group-name> logout Do you really want to logout? (y/n) [n]y
Exit minicom with <Ctrl><a> followed by <x>
Completing Storage Configuration
The following sections describe the steps needed to complete the storage configuration for both the Web UI and CLI. Only one method needs to be completed.
Manage the PS-Series Array from the UI
Manage the PS-Series Array from the CLI