HP Xw4400 - Workstation - 2 GB RAM Assembly Instructions

Installing and Configuring SAS Hardware
RAID on HP Workstations
Introduction
This document provides an overview of hardware RAID solutions for HP workstations running the
Windows and Linux operating systems. It assumes a basic understanding of computer hardware,
filesystems, and the Linux operating system. It covers an overview of hardware RAID solutions, the
differences between software and hardware RAID offerings, and information regarding the configuration
of hardware RAID on HP workstations.
Hardware RAID in Windows
For SAS controllers on Windows workstations, support is provided according to what the SAS controller
provides, within system limitations or restrictions. HP recommends that only supported SAS drives be
attached to SAS controllers for drives located in chassis drive slots.
xw4400 xw6400 xw8400 xw9400 xw4600 xw6600 xw8600
LSI 3041E
RAID 0 2 or more
drives
2 or more
drives
2 or more
drives
2 or more
drives
RAID 1 2 drives 2 drives 2 drives 2 drives
RAID 1/10E 3 or more
drives
3 or more
drives
3 or more
drives
3 or more
drives
LSI 8344ELP
RAID 0 2 or more
drives
2 or more
drives
2 or more
drives
2 or more
drives
RAID 1 2 drives 2 drives 2 drives 2 drives
RAID 5 3 or more
drives
3 or more
drives
3 or more
drives
3 or more
drives
RAID 10 4 or more
drives
4 or more
drives
4 or more
drives
4 or more
drives
RAID 50 6 or more
drives
6 or more
drives
6 or more
drives
6 or more
drives
LSI 8888ELP
RAID 0 2 or more
drives
2 or more
drives
2 or more
drives
RAID 1 2 drives 2 drives 2 drives
RAID 5 3 or more
drives
3 or more
drives
3 or more
drives
ENWW Introduction 1

RAID 10 4 or more
drives
4 or more
drives
4 or more
drives
RAID 50 6 or more
drives
6 or more
drives
6 or more
drives
LSI 1064
RAID 0 2 or more
drives
RAID 1 2 drives
RAID 1/10E 3 or more
drives
LSI 1068
RAID 0 2 or more
drives
2 or more
drives
RAID 1 2 drives 2 drives
RAID 1/10E 3 or more
drives
3 or more
drives
Hardware RAID in Linux
There are different levels of hardware RAID available; not all of them are supported options for HP Linux
workstations.
●Hardware-assisted RAID is a step up from software RAID, but is not considered true hardware
RAID. Hardware-assisted SAS RAID uses the LSI megaraid driver already present in the Linux
kernel. It is provided by the LSI 3041E plug-in card on the HP xw4000 and xw6000 Workstation
series and by the LSI 1064 and 1068 controllers on the motherboard on the HP xw8000 and xw9000
Workstation series.
●True hardware RAID, also known as raid-on-chip, or ROC, makes use of a dedicated RAID
processor. It is provided by the LSI 8344ELP and 8888ELP plug-in cards on the HP xw8000 and
xw9000 family platforms. SAS drives are the only drives supported for use with RAID on HP Linux
workstations.
●Hardware-assisted SATA RAID requires use of the dmraid interface, and is not supported on HP
Linux workstations.
Supported Configurations
Hardware RAID for HP Linux workstations is currently supported for user-configured RAID solutions for
the HP workstations below. Not all configurations that are made available by the RAID chipsets or plug-
in cards are supported by HP; only the configurations listed below are supported on HP Linux
workstations.
xw4400 xw6400 xw8400 xw9400 xw4600 xw6600 xw8600
LSI 3041E
RAID 0 2-4 drives 2-3 drives 2-4 drives 2-3 drives
RAID 1 2 drives 2 drives 2 drives 2 drives
2 Installing and Configuring SAS Hardware RAID on HP Workstations ENWW

LSI 8344ELP
RAID 0 2-4 drives 2-4 drives
RAID 1 2 drives 2 drives
RAID 5 3-4 drives 3-4 drives
LSI 8888ELP
RAID 0 2-4 drives 2-3 drives 2-6 drives*
RAID 1 2 drives 2 drives 2 drives
RAID 5 3-4 drives 3 drives 3-6 drives*
LSI 1064
RAID 0 2-4 drives
RAID 1 2 drives
LSI 1068
RAID 0 2-5 drives 2-6 drives*
RAID 1 2 drives 2 drives
* HP xw8600 Workstation can accommodate 6 internal 2.5” drives
Not all possible hardware RAID configurations are supported on HP Linux workstations.
●Only SAS drives are supported with hardware-assisted and full hardware RAID.
●SATA and PATA drives are not supported with hardware RAID, but can be used with software
RAID solutions.
●Supported operating systems are:
◦Red Hat Enterprise Linux 4.5 and later
◦Red Hat Enterprise Linux 5.0 and later
◦SUSE Linux Enterprise Server 9 SP4 and later
◦SUSE Linux Enterprise Server 10 SP1 and later
◦SUSE Linux Enterprise Desktop 10 SP1 and later
●Support for Red Hat Enterprise Linux (RHEL) operating systems will be provided by HP. Support
for SLE operating systems will be provided by Novell.
●The Linux Hardware Matrix contains information on all current platforms and is a good place to
learn which RAID controllers are supported on a given platform.
LSI 3041E and Integrated LSI 1064/1068 Setup
The LSI 3041E is a 4-port SATA/SAS RAID controller providing SAS support for the HP xw4000 and
xw6000 Workstation series. Note that while the controller provides functionality for SATA RAID, SATA
RAID is not supported on HP Linux workstations. The HP xw8000 and xw9000 Workstation series use
an onboard LSI 1064 or 1068 SAS controller, which uses the same BIOS configuration utility as the LSI
3041E plug-in card. The following steps can be used as a guide for setting up the LSI 3041E or the
ENWW LSI 3041E and Integrated LSI 1064/1068 Setup 3

onboard LSI controllers for SAS RAID; details will vary based on the specific configuration (RAID level,
number of disks) used.
Step 1: Boot the workstation, and when prompted, press any key to view option ROM messages. A
message indicating the presence of the LSI onboard controller or plug-in card and the LSI Logic MPT
SAS BIOS will appear.
Figure 1 LSI Logic MPT SAS BIOS
Step 2: Press CTRL-C when indicated to begin RAID configuration and enter the LSI Logic MPT Setup
Utility. The first screen will display a list of available adapters. The LSI 3041E plug-in card appears on
this list as the SAS1064E, the LSI onboard controllers are listed as the LSI1064 or LSI1068. This screen
can be used to change the boot order of the adapters.
4 Installing and Configuring SAS Hardware RAID on HP Workstations ENWW

Figure 2 LSI Logic MPT Setup Utility – Adapter selection
Step 3: Press enter to select and configure the highlighted adapter from the list. The next screen will
display properties of the selected adapter. Information on the attached drives, any RAID arrays present,
and more advanced adapter properties is available.
Figure 3 LSI Logic MPT Setup Utility – Adapter properties
Step 4: To create, manage or delete a SAS RAID array, highlight RAID Properties and press enter. If
an array is presently configured on the controller, the “View Existing Array” will be present.
ENWW LSI 3041E and Integrated LSI 1064/1068 Setup 5

Figure 4 Logic MPT Setup Utility – RAID properties
Step 5: To create a new array, select one of the options to create either an IM, IME, or IS volume and
press enter. IM, or Integrated Mirroring, is also known as RAID-1. IME, or Integrated Mirroring Enhanced,
is RAID-10. IS, or Integrated Striping, is RAID-0. The next screen will list the disks. For each disk to be
part of the array, move to the column labeled “RAID Disk” and press the space bar to add the disk to
the array. The next column, “Hot Spr,” can be used to mark disks to be hot spares in case of disk failure.
When the disks have been marked as desired, press C to create the array.
Figure 5 LSI Logic MPT Setup Utility – Array creation
6 Installing and Configuring SAS Hardware RAID on HP Workstations ENWW

Step 6: After an array has been created, the utility gives options for managing it through the “View
Existing Array” menu. Viewing the array will display various properties of the RAID array, including the
disks present and their status.
Figure 6 LSI Logic MPT Setup Utility – View array
Step 7: Select the “Manage Array” option and press enter to use the utility’s management features.
From here, the disks that are configured to be hot spares can be managed, the array can be activated,
deactivated, or deleted, and if the array is not at an “Optimal” status due to a disk failure or other problem,
it can be synchronized from this menu.
Figure 7 LSI Logic MPT Setup Utility – Manage array
ENWW LSI 3041E and Integrated LSI 1064/1068 Setup 7

When finished, or at any step in the process, the escape key can be used to exit the current view,
canceling or saving any changes as needed.
LSI 8344ELP and LSI 8888ELP Setup
The LSI 8344ELP and LSI 8888ELP are 8-port SATA/SAS RAID controllers providing additional SAS
support for the HP xw8000 and xw9000 family platforms. Note that while the controller provides
functionality for SATA RAID, SATA RAID is not supported on HP Linux workstations. The HP xw8000
and xw9000 family platforms also have onboard SAS RAID capabilities that can be described best as
hardware-assisted RAID; the 8344ELP and 8888ELP plug-in cards are considered to be full hardware
RAID. The following steps can be used as a guide for setting up the LSI 8344ELP or the LSI 8888ELP
for SAS RAID; details will vary based on the specific configuration used.
Step 1: Boot the workstation, and when prompted, press CTRL-H to enter LSI’s WebBIOS utility.
WebBIOS will be run after POST completes. Select your adapter from the Adapter Selection screen and
press start to enter the utility.
Figure 8 LSI WebBIOS – Adapter selection
Step 2: The main WebBIOS screen can be used to configure the adapter, the physical disks, and the
virtual disks or RAID arrays. The first view shows the physical disks connected to the adapter, any RAID
arrays presently configured, as well as the status of both physical and virtual disks.
8 Installing and Configuring SAS Hardware RAID on HP Workstations ENWW

Figure 9 LSI WebBIOS – Main screen
Step 3: The Configuration Wizard can be used to create a new RAID array on the device. From the
MegaRAID Configuration Wizard screen, there are options available to clear any existing device
configuration, add new drives to an existing configuration, or create a new configuration from scratch.
Clicking on either “New Configuration” or “Add Configuration” proceeds to the next step of the wizard,
where there are options for either custom or automatic configurations.
Figure 10 LSI WebBIOS – Configuration wizard
Step 4: Automatic configurations will automatically add all available disks to a RAID array, with the RAID
level determined by whether or not redundancy is selected. Custom configuration allows the user to
select disks, array size, and RAID level. The next screen allows for the selection of the disks which will
ENWW LSI 8344ELP and LSI 8888ELP Setup 9

be part of the RAID array. Select from the available disks those disks that will be part of the RAID array
and click “Accept DG” to proceed.
Figure 11 LSI WebBIOS – Configuration of disk group
Step 5: The next screen allows for more advanced configuration of the RAID array. Many details about
the disk policies can be selected here. The most important options on this screen are the RAID level
and size. First select the RAID level from the drop-down menu- the RAID levels available will vary
depending on the number of physical disks in the disk group. The configuration window to the right of
the screen will display information on the maximum size of the RAID array for the different available
RAID levels. In the text box labeled “Select Size,” enter a size in MB up to this available maximum size.
When these options have been selected, further customization can be done, or click “Accept” or “Next”
to move to the next step of configuration.
10 Installing and Configuring SAS Hardware RAID on HP Workstations ENWW

Figure 12 LSI WebBIOS – Virtual disk configuration
Step 6: The next screen will display the physical disks on the left and the proposed virtual disk (RAID
array) on the right as a preview of the proposed disk configuration. If changes are needed, press “Back”
to go back and change details of the configuration, or press “Accept” to accept the configuration. On the
next screen, press “Yes” to save the configuration, then press “Yes” to initialize the new RAID array. If
a disk in the RAID array fails or needs to be replaced for any reason, the WebBIOS utility can be used
to easily rebuild the RAID array. If a disk failure occurs, the change to the RAID array will be indicated
by a message on the screen before entering the utility.
Figure 13 Foreign configuration on LSI adapter
ENWW LSI 8344ELP and LSI 8888ELP Setup 11

Step 7: Press C or CTRL-H when indicated to enter the utility. When the home screen appears, the new
disk will be marked as “Unconfigured bad” and the missing disk will be labeled in red. Click on the new
unconfigured disk in order to configure it and add it to the RAID array.
Figure 14 LSI WebBIOS – Unconfigured bad disk
Step 8: From the next screen, select the option to make the disk “Unconfigured good” so it can be made
to be part of a disk group and click “Go.” The next screen will display the configured disk groups. The
group from which the original disk was missing will be indicated. Select the location of the disk from the
row labeled “DG Missing Row,” where the listed options will be the locations where a disk was missing
from the RAID array. The radio button marked “Replace Missing PD” will be checked. Click “Go” to
complete the operation.
Figure 15 LSI WebBIOS – Replacing a physical disk
12 Installing and Configuring SAS Hardware RAID on HP Workstations ENWW

Step 9: After the disk has been replaced, it will start with an offline status. Select the option marked
“Make Online” to bring the physical disk online and finish rebuilding the RAID array.
At any point during RAID configuration or management, the home button will return to the main screen
of the configuration utility, and the exit button will cancel any unsaved changes and exit the application.
Additional RAID Information
OS Installation
The above steps document the process for setting up a hardware RAID array using the tools provided
by the hardware RAID adapter. After this setup process is complete, an operating system can be
installed. If the user does not wish to have the RAID array be bootable, a separate SATA or SAS boot
disk can be used, and the RAID array can be a separate disk group for data storage only. During
operating system installation, the configured RAID array will be recognized as a logical disk group, and
can be set up and partitioned as desired.
Other Workstation Platforms
The above information applies only to the desktop workstation platforms discussed herein. Hardware
RAID support is not available on the HP xw4550, since only SAS RAID is supported on HP Linux
workstations. The xw4550 only supports SATA drives, and SATA RAID support is not available. The
HP xw460c blade workstation supports hardware RAID levels 0 or 1 using the SAS drives that are
available for use on that platform.
ENWW Additional RAID Information 13

14 Installing and Configuring SAS Hardware RAID on HP Workstations ENWW