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5 Posts
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1402
May 3rd, 2021 22:00
SSC5020 multipath Only 2 of 4 paths to the server are up
Hi All,
Our compellent is connected to 3 VMware host server using iSCSI 10Gbps configured with 2 fault domain 10.101.8.x & 10.101.9.x and 2 different switch as HA & failover.
Currently the VMware Esxi group detected error as per subject and further checking, connection to the server is degraded and only fault domain 1 is in use. Does this alert is ignorable or will it cause any issue?.
Before issue occurred we were prompt for port rebalance and were no issue detected including refer KB below for further troubleshooting. Thanks
SC Error:
No Events found!
Origin3k
4 Operator
•
2.3K Posts
0
May 3rd, 2021 23:00
Your ESXi Admin should use "vmkping" from the ESXi console to verify if all FD and underlying ports can be reached.
and when using jumboframes
and same for the 10.101.9 subnet and vmk
if a esxcfg-rescan -A doest not help i would reboot the ESX Host
Regards,
Joerg
Azwanarif06
5 Posts
0
May 7th, 2021 00:00
Hi @Origin3k ,
We have verified ping from SC & Esxi and found that the path mapping are unbalance. Instead of multipath round robin as example below. We found that current configuration is 3 path from Fault domain 1 (10.101.8.X) & 1 path from Fault domain 2 (10.101.9.X). Does Dell compellent have command or option to rebalance all path?
Volume: "LUN10-vm-storage" → Mapped to ESX1/HBA1 -as- LUN 10 (Active)
Volume: "LUN10-vm-storage" → Mapped to ESX1/HBA2 -as- LUN 10 (Active)
Volume: "LUN20-vm-storage" → Mapped to ESX1/HBA1 -as- LUN 20 (Active)
Volume: "LUN20-vm-storage" → Mapped to ESX1/HBA2 -as- LUN 20 (Active)