Hi, I have Windows server 2016 built on ESXi 6.5.0 Update 2 (Build 829453) and I noticed slow disk performance. I have found some tips about bad working drivers of storage and tried this, but with no visible results. I tried upgrade firmware of RAID controller, Bios, iDRAC... Server is DELL PowerEdge R230 with SAS disks.
https://virtualnomadblog.com/2018/08/30/vsphere-6-5-switching-to-native-drivers-in-esxi-6-5/
Windows Server 2016 Really slow on ESXI 6.5
Is this problem with some bug? Or do you know what can I do to increase disk performace? Maybe update some modules?
[root@vmware:~] esxcli system module list
Name Is Loaded Is Enabled
----------------------------- --------- ----------
vmkernel true true
chardevs true true
user true true
crypto true true
vsanapi true true
vsanbase true true
vprobe true true
vmkapi_mgmt true true
iodm true true
dma_mapper_iommu true true
procfs true true
vmkapi_v2_3_0_0_mgmt_shim true true
vmkapi_v2_2_0_0_mgmt_shim true true
vmkapi_v2_2_0_0_vmkernel_shim true true
vmkapi_v2_3_0_0_vmkernel_shim true true
vmkapi_v2_1_0_0_vmkernel_shim true true
vmkusb true true
iscsi_trans true true
iscsi_trans_compat_shim true true
vmkapi_v2_3_0_0_vmklinux_shim true true
vmkplexer true true
vmklinux_9 true true
lsi_mr3 true true
ntg3 true true
vmkapi_v2_2_0_0_iscsiInc_shim true true
vmkapi_v2_3_0_0_iscsiInc_shim true true
etherswitch true true
netsched_fifo true true
netsched_hclk true true
netioc true true
vmklinux_9_2_3_0 true true
cnic_register true true
dm true true
nmp true true
vmw_satp_local true true
vmw_satp_default_aa true true
vmw_psp_lib true true
vmw_psp_fixed true true
vmw_psp_rr true true
vmw_psp_mru true true
vmci true true
healthchk true true
teamcheck true true
vlanmtucheck true true
heartbeat true true
shaper true true
lldp true true
cdp true true
ipfix true true
tcpip4 true true
dvsdev true true
dvfilter true true
lacp true true
vmkapi_v2_1_0_0_dvfilter_shim true true
vmkapi_v2_2_0_0_dvfilter_shim true true
vmkapi_v2_3_0_0_dvfilter_shim true true
libata_92 true true
ahci true true
esxfw true true
dvfilter-generic-fastpath true true
vmkibft true true
gss true true
lvmdriver true true
deltadisk true true
vdfm true true
sunrpc true true
vmfs3 true true
vfat true true
ufs true true
vmklink_mpi true true
swapobj true true
nfsclient true true
nfs41client true true
vflash true true
dell true true
vmkapei true true
procMisc true true
nrdma true true
nrdma_vmkapi_shim true true
vmkapi_v2_3_0_0_rdma_shim true true
ipmi true true
vmkapi_v2_1_0_0_nmp_shim true true
vmkapi_v2_3_0_0_nmp_shim true true
vmkapi_v2_2_0_0_nmp_shim true true
vrdma true true
vmkapi_v2_3_0_0_iscsi_shim true true
vmkapi_v2_2_0_0_iscsi_shim true true
vmkapi_v2_1_0_0_iscsi_shim true true
balloonVMCI true true
hbr_filter true true
ftcpt true true
filtmod true true
svmmirror true true
cbt true true
migrate true true
vfc true true
qflge false false
qfle3 false false
ixgben false false
vmw_ahci false false
Thank you very much for your help.
Peter