Dell PowerStore 1200T EMC PowerStore Host Configuration Guide - Page 58

iSCSI Configuration, Pre-Requisites, PowerStore Operating System 1.x Only - Single Subnet

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2. Edit the /etc/modprobe.d/lpfc.conf configuration file with the following data: options lpfc lpfc_lun_queue_depth=128 lpfc_sg_seg_cnt=256 lpfc_max_luns=65535 lpfc_enable_fc4_type=3 NOTE: lpfc_enable_fc4_type=3 enables both FCP and NVMe/FC, and lpfc_enable_fc4_type=1 enables only FCP. 3. Rebuild the initramfs image: # dracut --force 4. Reboot the host system to reconfigure the lpfc driver: # systemctl reboot iSCSI Configuration This section provides an introduction to the recommended configuration to be applied when attaching hosts to PowerStore cluster using iSCSI. NOTE: This section applies only to iSCSI. If you are using any other protocol with Linux, see the relevant configuration section. NOTE: Be sure to review the iSCSI SAN Guidelines before you proceed. Pre-Requisites Before configuring iSCSI, the following pre-requisites should be met: ● Follow the operating system recommendations for installation and setup of the appropriate NIC/iSCSI HBA for your system. ● It is recommended to install the latest driver version (patch), as described in the operating system support site for each specific NIC/iSCSI HBA. ● Refer to the E-Lab Interoperability Navigator (https://elabnavigator.dell.com) for supported NIC/iSCSI HBA models and drivers. ● Configure networking according to PowerStore best practices: ○ If you are using PowerStore T model and utilizing only the two bonded ports (the first two ports on the Mezz card), it is recommended to configure them as a LACP port channel across the two switches and configure proper MC-LAG (VLTi or VPC configuration between the switches). NOTE: If a port channel is not properly configured on the switch side, the bond operates as active/passive, and the appliance bandwidth cannot be fully utilized. ○ If you are using PowerStore T model and utilizing any other port (not bonded), there is no need to configure any port channel. ○ For information, see the Dell EMC PowerStore Networking Guide for PowerStore T Models on the support site (https:// www.dell.com/support) PowerStore Operating System 1.x Only - Single Subnet About this task Use this procedure for configuring the iSCSI adapter on Linux hosts connected to PowerStore with a PowerStore operating system version 1.x in which only a single subnet is supported. By design, on various Linux distributions, only two network interfaces can be configured on the same network subnet. For details, see RedHat Knowledge Article 30564 (How to connect...) and RedHat Knowledge Article 53031 (When RHEL has multiple IPs...). 58 Host Configuration for Linux

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2.
Edit the
/etc/modprobe.d/lpfc.conf
configuration file with the following data:
options lpfc lpfc_lun_queue_depth=128 lpfc_sg_seg_cnt=256 lpfc_max_luns=65535
lpfc_enable_fc4_type=3
NOTE:
lpfc_enable_fc4_type=3
enables both FCP and NVMe/FC, and
lpfc_enable_fc4_type=1
enables
only FCP.
3.
Rebuild the initramfs image:
# dracut --force
4.
Reboot the host system to reconfigure the
lpfc
driver:
# systemctl reboot
iSCSI Configuration
This section provides an introduction to the recommended configuration to be applied when attaching hosts to PowerStore
cluster using iSCSI.
NOTE:
This section applies only to iSCSI. If you are using any other protocol with Linux, see the relevant configuration
section.
NOTE:
Be sure to review the
iSCSI SAN Guidelines
before you proceed.
Pre-Requisites
Before configuring iSCSI, the following pre-requisites should be met:
●
Follow the operating system recommendations for installation and setup of the appropriate NIC/iSCSI HBA for your system.
●
It is recommended to install the latest driver version (patch), as described in the operating system support site for each
specific NIC/iSCSI HBA.
●
Refer to the E-Lab Interoperability Navigator (
) for supported NIC/iSCSI HBA models and
drivers.
●
Configure networking according to PowerStore best practices:
○
If you are using PowerStore T model and utilizing only the two bonded ports (the first two ports on the Mezz card), it is
recommended to configure them as a LACP port channel across the two switches and configure proper MC-LAG (VLTi
or VPC configuration between the switches).
NOTE:
If a port channel is not properly configured on the switch side, the bond operates as active/passive, and the
appliance bandwidth cannot be fully utilized.
○
If you are using PowerStore T model and utilizing any other port (not bonded), there is no need to configure any port
channel.
○
For information, see the
Dell EMC PowerStore Networking Guide for PowerStore T Models
on the support site (
https://
www.dell.com/support
)
PowerStore Operating System 1.x Only - Single Subnet
About this task
Use this procedure for configuring the iSCSI adapter on Linux hosts connected to PowerStore with a PowerStore operating
system version 1.x in which only a single subnet is supported.
By design, on various Linux distributions, only two network interfaces can be configured on the same network subnet. For
details, see
RedHat Knowledge Article 30564 (How to connect...)
and
RedHat Knowledge Article 53031 (When RHEL has
multiple IPs...)
.
58
Host Configuration for Linux