Alarm triggered "Virtual SAN Health Alarm 'Memory pools (heaps)'"

[habs3]

Good Day,

I received the following alarm 2 days in a row for the a 4 node vxrail cluster. I was wondering what it means and any info that would point to what is going on.

Virtual SAN Health Alarm 'Memory pools (heaps)'

thank you

[hkg2581]

Poor All Flash vSAN Performance 

Please let me know if you are running a VXRAIL on newer Dell Models , there seemed to be know issue conflict between DELL-PTA-agent and a lsu plugin vib installed on the ESXi .See :VXRAIL hosts going non-responsive due to a plugin conflict

Can you also let me know what you see in vmkernel.log and hostd.log during the time frame when these alerts are triggered . If you are seeing ramdisk full message , re-point the vsantraces from /vsantraces to your local sata-dom datastore See below example :

esxcli vsan trace get
   VSAN Traces Directory: /scratch/vsantraces
Number Of Files To Rotate: 8
Maximum Trace File Size: 45 MB

Log Urgent Traces To Syslog: true

[root@esxi01:/vmfs/volumes/593eecd8-406d32ad-b242-0cc47ac2b410] esxcli vsan trace set -p /vmfs/volumes/593eecd8-406d32ad-b242-0cc47ac2b410/vsan-trace-esx-101/

After configuration :

[root@esxi01:/vmfs/volumes/593eecd8-406d32ad-b242-0cc47ac2b410] esxcli vsan trace get
   VSAN Traces Directory: /vmfs/volumes/593eecd8-406d32ad-b242-0cc47ac2b410/vsan-trace-esx-101/
Number Of Files To Rotate: 8
Maximum Trace File Size: 45 MB
Log Urgent Traces To Syslog: true
[root@esxi01:/vmfs/volumes/593eecd8-406d32ad-b242-0cc47ac2b410]