Virtual Computing Lab (VCL) unavailable

February 05, 2020 10:34 a.m.
Outage category: 
Virtual Computing Library (VCL)
Location: 
All campuses
Status: 
Open
Resolved alert: 
01/29/2020 7:49 pm

All VCL services as described at https://its.gmu.edu/service/virtual-computing-lab/ and also the password reset function.

Initial symptoms: 

Users experiencing issues logging in or using VCL services/functions.

Duration: 
01/29/2020 5:50 pm - 01/29/2020 7:49 pm
Impact to Mason: 

All VCL services/functions were unavailable to users.

ROOT CAUSE ANALYSIS
Cause: 

Underlying storage system slow performance. The replacement filesystem for the NetApp failure on 1/20/2020 was unable to perform the IO workloads required for VCL under load.

 

Resolution: 

VCL functionality restored by switching to a new PURE Storage flash based filesystem.

Prevention: 

Monitoring to ensure new storage system can handle load.

STATISTICS