Determine Sas Host Identifiers - Linux; Create Partitions And Filesystems - Lenovo ThinkSystem DE Series Hardware Installation And Maintenance Manual

If you are using....
RHEL 6.x systems:
RHEL 7.x systems:
SLES 12.x and 15.x systems:
Rebuild the i i n n i i t t r r a a m m f f s s image or the i i n n i i t t r r d d image under /boot directory:
Step 7.
If you are using....
RHEL 6.x and 7.x systems:
SLES 12.x and 15.x systems:
Make sure that the newly created /boot/initrams-* image or /boot/initrd-* image is selected in
Step 8.
the boot configuration file.For example, for grub it is /boot/grub/menu.lst and for grub2 it is /boot/
grub2/menu.cfg.
Step 9. Use the "Create host manually" procedure in the online help to check whether the hosts are
defined. Verify that each host type is either Linux DM-MP (Kernel 3.10 or later) if you enable the
Automatic Load Balancing feature, or Linux DM-MP (Kernel 3.9 or earlier) if you disable the
Automatic Load Balancing feature. If necessary, change the selected host type to the appropriate
setting.
Step 10. Reboot the host.

Determine SAS host identifiers - Linux

For the SAS protocol, you find the SAS addresses using the HBA utility, then use the HBA BIOS to make the
appropriate configuration settings.
Guidelines for HBA utilities:
• Most HBA vendors offer an HBA utility. Depending on your host operating system and CPU, use either the
LSI-sas2flash(6G) or sas3flash(12G) utility.
• Host I/O ports might automatically register if the host context agent is installed.
Step 1. Download the LSI-sas2flash(6G) or sas3flash(12G) utility from your HBA vendor's web site.
Step 2. Install the utility.
Step 3. Use the HBA BIOS to select the appropriate settings for your configuration.
Go to
DE Series Product Support Site
Interoperability Matrix document for recommendations.

Create partitions and filesystems

A new LUN has no partition or file system when the Linux host first discovers it. You must format the LUN
before it can be used. Optionally, you can create a file system on the LUN.
Before you begin
The host must have discovered the LUN.
In the /dev/mapper folder, you have run the l l s s command to see the available disks.
You can initialize the disk as a basic disk with a GUID partition table (GPT) or Master boot record (MBR).
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ThinkSystem DE Series Hardware Installation and Maintenance Guide for 2U Enclosures
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, click on the Documentation tab, and look for the