troubleshooting Question

vmware cloning and Synology CPU I/O Wait

Avatar of Wasim Shaikh
Wasim ShaikhFlag for United Arab Emirates asked on
StorageVMware
10 Comments2 Solutions1395 ViewsLast Modified:
Hello Experts,

Let me show you waht I have in LAB.
2 ESXi host, Synology NAS,

Storage:
A DiskGroup with 2x2TB on top of this a single Volume  in RAID-0.
2 x iSCSI LUN (file based): LUN-1 and LUN-2

1x1TB on which a single SHR Volume
1 x iSCSI LUN (file based): LUN-3

Host-A is configured with 2 vSwitch:
Switch1(vmnic0): VMNetwork and Mgmt
Switch2(vmnic3): Storage

Host-B is configured with 2 vSwitch:
Switch1(vmnic0): VMNetwork and Mgmt
Switch2(vmnic5): Storage

All datastore are configured with multiple paths
pathsLUN-3
CASE-1
I have a vm template on LUN-3 and when used to deploy vm from it on LUN-2 or LUN-1 it gets slow gradually.
When checked the under resource monitor
CPU IOWaitR/W IOPSTransfer Rate per volume
CASE-2
If same thing is performed in reverse i.e., template on LUN-1 or LUN-2 deployed on LUN-3 there is better results.
CPU IOWait 2IOPSTransfer rate
What can be the reason for this?

Thanks for the time.
ASKER CERTIFIED SOLUTION
Wasim Shaikh

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