• Do a minimal installation
• Configure iSCSI network interfaces with MTU of 9000
• Do a yum update after the installation

yum install targetcli net-tools wget chrony
wget https://downloads.linux.hp.com/SDR/add_repo.sh
sh ./add_repo.sh spp -d rhel -r 7
yum install hpssacli

/etc/sysconfig/modules/scsi.modules

#!/bin/sh

if [ ! -c /dev/sg0 ] ; then
  exec /sbin/modprobe sg >/dev/null 2>&1
fi

chmod 755 /etc/sysconfig/modules/scsi.modules

hpssacli
controller slot=2 modify cacheratio=75/25

/etc/rc.local

echo noop > /sys/block/sda/queue/scheduler
# /sbin/blockdev --setra 1024 /dev/sda

tuned-adm profile network-throughput

targetcli

/backstores/block create lun1 /dev/data/lun1
/iscsi create
/iscsi/iqn.2003-01.org.linux-iscsi.testnas.x8664:sn.3e16441761a3/tpg1
portals delete 0.0.0.0 3260
portals create 192.168.0.100 3260
portals create 192.168.1.100 3260
luns/ create /backstores/block/lun1
acls/ create iqn.1998-01.com.vmware:supermicro1-22d4a58e
acls/ create iqn.1998-01.com.vmware:supermicro2-6b09d927
cd /

/> ls
o- / ......................................................................................... [...]
  o- backstores .............................................................................. [...]
  | o- block .................................................................. [Storage Objects: 1]
  | | o- lun1 ...................................... [/dev/data/lun1 (50.0GiB) write-thru activated]
  | o- fileio ................................................................. [Storage Objects: 0]
  | o- pscsi .................................................................. [Storage Objects: 0]
  | o- ramdisk ................................................................ [Storage Objects: 0]
  o- iscsi ............................................................................ [Targets: 1]
  | o- iqn.2003-01.org.linux-iscsi.testnas.x8664:sn.3e16441761a3 ......................... [TPGs: 1]
  |   o- tpg1 ............................................................... [no-gen-acls, no-auth]
  |     o- acls .......................................................................... [ACLs: 2]
  |     | o- iqn.1998-01.com.vmware:supermicro1-22d4a58e .......................... [Mapped LUNs: 1]
  |     | | o- mapped_lun0 .................................................. [lun0 block/lun1 (rw)]
  |     | o- iqn.1998-01.com.vmware:supermicro2-6b09d927 .......................... [Mapped LUNs: 1]
  |     |   o- mapped_lun0 .................................................. [lun0 block/lun1 (rw)]
  |     o- luns .......................................................................... [LUNs: 1]
  |     | o- lun0 .................................................... [block/lun1 (/dev/data/lun1)]
  |     o- portals .................................................................... [Portals: 2]
  |       o- 192.168.0.100:3260 ............................................................... [OK]
  |       o- 192.168.1.100:3260 ............................................................... [OK]
  o- loopback ......................................................................... [Targets: 0]
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