This applied to VMware host which need to connect to existing CJ1 Storage or other new Dell EMC SC series storage
- Enable SSH on each of the hosts
- Connect via Putty or other client
- apply below command
- reboot host
***Please take noted vmhba”XX” mean number of VMware iSCSi software initiator adapter, normally is vmhba64
Example:
1. iSCSI: Software iSCSI Queue Depth
esxcli system module parameters set -m iscsi_vmk -p iscsivmk_LunQDepth=255
2. iSCSI: Software iSCSI login timeout
esxcli iscsi adapter param set -A vmhbaXX -k LoginTimeout -v 60
(New CLI, valid for vSphere 7.x running on SCOS 6.6 and later)
esxcli iscsi adapter param set -A=vmhbaXX -k=LoginTimeout -v=5
3. iSCSI: Disable Delayed ACK
vmkiscsi-tool -W -a delayed_ack=0 -j vmhbaXX
(New CLI, valid for vSphere 7.x running on SCOS 6.6 and later)
esxcli iscsi adapter param set -A vmhbaXX -k DelayedAck -v false
4. All protocols: HA Cluster Settings
esxcli system settings kernel set -s terminateVMonPDL -v TRUE
5. All protocols: HA Cluster Settings
esxcli system settings advanced set -o “/Disk/AutoremoveOnPDL” -i 1
6. All protocols: Not SSH, need login to vCenter > Select Cluster > Configure > vSphere Availability > Edit > Advanced options HA Cluster setting
das.maskCleanShutdownEnabled = True
7. All protocols: Conditions for round robin path changes, individual datastore (use this command only when connect to individual or 1 datastore)
esxcli storage nmp psp roundrobin deviceconfig set –device naa.XXX –type=iops –iops=3
8. All protocols: Conditions for round robin path changes, all datastores on host (use this command when apply to same storage model for Global policy)
esxcli storage nmp satp rule add -s “VMW_SATP_ALUA” -V “COMPELNT” -P “VMW_PSP_RR” -O “iops=3”
(New, valid for vSphere 7.x running on SCOS 6.6 and later)
esxcli storage nmp satp rule add -s VMW_SATP_ALUA -V COMPELNT -P VMW_PSP_RR -o disable_action_OnRetryErrors -e “Dell EMC SC Series Claim Rule” -O “policy=iops;iops=3”
9. To make sure policy is apply, use below command to review storage rule
esxcli storage nmp device list