Been using HPE MSA SAN since the P2000 days. But in all the guides over the years I have not seen a specfic case and use of SAS over the Fiber Channel/iSCSI deployments.
I tend to deploy 2 DisK pools, each with different RAID set following the power rule. and have read cache's on each. Reason for 2 Disk Pools are the use on the both Controllers cache which can help quite a bit of performance.
Is it the same procedure for all FC/iSCSI & SAS on the below?
1. Multipathing
https://www.hpe.com/psnow/doc/4aa4-7060enw
is missing the commands. Found these for 6.x Do they still work with 7.x /8.x
esxcli storage nmp satp set -s VMW_SATP_DEFAULT_AA -P VMW_PSP_RR
esxcli storage nmp satp set -s VMW_SATP_ALUA -P VMW_PSP_RR
An older all in 1 command
for i in 'esxcfg-scsidevs -c |awk '{print $1}' | grep naa.600c'; do esxcli storage nmp psp roundrobin deviceconfig set --type=iops --iops=1 --device=$i; done
2. Some say to Adjusting Round Robin IOPS limit from default 1000 to 1 but that seem to be the old 1Gb ISCSI days
page 10/21 in the "Deployment Considerantions" states "Best practice: Keep the default IOPS and bytes limit. HPE MSA storage arrays do not see a benefit by changing these limits."
https://knowledge.broadcom.com/external/article?legacyId=2069356