VxRack: FOSGWTool.sh fails with error 'Cannot allocate memory'

Summary: VxRack: FOSGWTool.sh fails with error='Cannot allocate memory'.

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Symptoms

Running FOSGWTool.sh with any option fails with error='Cannot allocate memory'.
  
ScaleIO-XX-XX-XX-XX-GW:/opt/emc/scaleio/gateway/bin # ./FOSGWTool.sh --check_esrs_connectivity --scaleio_gateway_ip localhost --scaleio_gateway_user admin --scaleio_gateway_password XXXXXX
Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00000000f2100000, 25165824, 0) failed; error='Cannot allocate memory' (errno=12)
#
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (mmap) failed to map 25165824 bytes for committing reserved memory.
# An error report file with more information is saved as:
# /opt/emc/scaleio/gateway/bin/hs_err_pid11503.log

 

Cause

Not enough free memory to be allocated for the VM.

Resolution

  • Ensure correct Java version installed as per the VxRack Upgrade guide
cd /usr/java/latest/bin
java -version
  • Check VxFlex GW VM assigned memory size. The VxRackFlex Upgrade guide states that GW must have at least 4 GiB memory assigned
cat /proc/meminfo

Affected Products

PowerFlex rack, PowerFlex rack connectivity, PowerFlex rack HW, PowerFlex rack RCM Software
Article Properties
Article Number: 000168388
Article Type: Solution
Last Modified: 24 Nov 2025
Version:  4
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