Products/HA/DellRedHatHALinuxCluster/Storage/PowerVault MD3000/Hardware
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Dell|Red Hat HA Linux > Storage > PowerVault MD3000 > Hardware
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Hardware Setup
The MD3000 physically connects to each node by SAS for I/O, and by Ethernet for management.
Cabling the Power Supplies
To ensure that the specific power requirements are satisfied, see the documentation for each component in your cluster solution. It is recommended that you adhere to the following guidelines to protect your cluster solution from power-related failures:
- Plug each power supply into a separate AC circuit.
- Use uninterruptible power supplies (UPS).
- For some environments, consider having backup generators and power from separate electrical substations.
Cabling the Management Ports
Storage management is performed through the Ethernet connections on the controllers. Cable these Ethernet management ports on the same network segment as the cluster private network.
Cabling the SAS I/O Ports
Each cluster node attaches to the storage system using two SAS 5/E adapters and two SAS cables. In this configuration, there are redundant storage paths from each cluster node to the storage system. If a component in the storage path fails - such as the port, the cable, or the storage controller - the Multi-Path Proxy driver automatically re-routes the I/O requests to the alternate path so that the storage array continues to be accessible.
To cable the cluster:
- Connect cluster node 1 to the storage system.
- Install a SAS cable from the cluster node 1 HBA 1 port 0 to the RAID controller module 0 port In-0.
- Install a SAS cable from the cluster node 1 HBA 2 port 1 to the RAID controller module 1 port In-0.
- Connect cluster node 2 to the storage system.
- Install a SAS cable from the cluster node 2 HBA 1 port 0 to the RAID controller module 0 port In-1.
- Install a SAS cable from the cluster node 2 HBA 2 port 1 to the RAID controller module 1 port In-1.
Figure 1 shows a redundant cluster configuration with dual HBAs
Figure 1. Redundant Cluster Configuration With Dual HBAs
Configuring the SAS HBAs
1. Turn on each node
2. During system initialization, use the option to invoke the serial-attached SCSI (SAS) 5/E configuration (which is typically <Ctrl><C> key combination). The following screen appears.
Dell SAS 5 Host Bus Adapter BIOS MPTBIOS-6.12.05.00 (2007.09.29) Copyright 2000-2007 LSI Corporation Adapter(s) disabled by user Press Ctrl-C to run SAS Configuration Utility...
NOTE: Version numbers on your systems may not match these examples.
The following message appears:
Dell SAS 5 Host Bus Adapter BIOS MPTBIOS-6.12.05.00 (2007.09.29) Copyright 2000-2007 LSI Corporation Adapter(s) disabled by user Please wait, invoking SAS Configuration Utility...
3. In the SAS configuration utility menu, select an adapter from the list as shown in the figure below:
+------------------------------------------------------------------------------+ ¦ LSI Corporation Config Utility For Dell SAS 5 v6.12.05.00 (2007.09.29) ¦ ¦ Adapter List Global Properties ¦ ¦ Adapter PCI PCI PCI FW Revision Status Boot ¦ ¦ Bus Dev Fnc Order ¦ ¦ SAS1068 0B 08 00 0.10.51.00-IT Disabled 0 ¦ ¦ SAS1068 0F 08 00 0.10.51.00-IT Disabled ¦ ¦ ¦ ¦ ¦ ¦ Esc = Exit Menu F1/Shift+1 = Help ¦ ¦ Alt+N = Global Properties -/+ = Alter Boot Order Ins/Del = Alter Boot List ¦ +------------------------------------------------------------------------------+
After you select an adapter, the adapter properties are displayed as shown below:
+------------------------------------------------------------------------------+ ¦ LSI Corporation Config Utility For Dell SAS 5 v6.12.04.00 (2007.07.19) ¦ ¦ Adapter Properties -- SAS1068 ¦ ¦ ¦ ¦ Adapter SAS1068 ¦ ¦ PCI Address(Bus/Dev/Func) 0B:08:00 ¦ ¦ MPT Firmware Revision 0.10.51.00-IT ¦ ¦ SAS Address 500188B1:4D924100 ¦ ¦ NVDATA Version 25.10 ¦ ¦ Status Disabled ¦ ¦ Boot Order 0 ¦ ¦ Boot Support [Disabled] ¦ ¦ ¦
4. Record the SAS address. The SAS address may need to be used to assign Virtual Disks later.
5. Toggle the option for Boot Support and select Disabled. This field enables you to boot from the PowerVault MD3000 storage array and is not supported with the Dell|Red Hat HA Linux Cluster.
6. Save the configuration and exit.
7. Repeat the procedure on all other SAS 5/E adapters.
8. Exit the configuration utility and reboot the system.
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Dell|Red Hat HA Linux > Storage > PowerVault MD3000 > Hardware
