Support Requirement Of Scsi-Mq Feature; Procedure For Enabling / Disabling Scsi-Mq Feature - Hitachi GVX-CC64G*BX User Manual

Support requirement of SCSI-MQ
feature
When you use the OS's SCSI-MQ feature, please install the driver supporting SCSI-MQ
feature in your system.
FC Type
8Gbps FC Adapter
16Gbps FC Adapter
Procedure for enabling / disabling
SCSI-MQ feature
Please setup the following procedures to enable or disable SCSI-MQ feature.
(1)Modifying grub setting
(1-1) Setup enabling SCSI-MQ feature
Describe the following to GRUB setting file /etc/default/grub
# vi /etc/default/grub
GRUB_CMDLINE_LINUX=" ... scsi_mod.use_blk_mq=y"
(1-2) Setup disable SCSI-MQ feature
Describe the following to GRUB file, /etc/default/grub
# vi /etc/default/grub
GRUB_CMDLINE_LINUX=" ... scsi_mod.use_blk_mq=n"
(2) Update GRUB setting
# grub2-mkconfig -o /boot/grub2/grub.cfg
(3) Reboot
# reboot
(4) Please check whether SCSI-MQ feature setting is enabled or disabled and refer to
"Confirm the state of SCSI-MQ feature".
(5) Please set interrupts and IRQ tuning and refer to "The setup to the interrupted CPU
of the interrupt handler in Linux".
Driver version supporting SCSI-MQ
feaure
earlier
x.x.21.4250
Not supported Not supported
Not supported
43
later
x.x.21.4252
Supported