NETAPP SLM with single node cluster ontap

[masson]

Hello Community,

I'v install NetApp SLM Version 1.0RC4 Build: 1712060548

I'm trying to add single node cluster ontap storage systems.

But it failed to get Capability

If i try to get Capability by CLI with ontap-performance-sizer.sh

It end with the following error:

Invoking sizer module...
Starting the Resource mapping job:
{cot-3-demofr:}-> Sizing Service initialized..
Failed to find /ssl/ssl_configuration.xml.
{cot-3-demofr:}->Building SPM request object...
Getting storage pools details...
Found the hybrid aggregate
{cot-3-demofr:}->Building request object for the SSL 'Value' with peak latency:17
{cot-3-demofr:}->Computing the latency for the aggregates in the node of 'cot-3-demofr-01'.
{cot-3-demofr:data1}->Disk shelf DS2246 found for the aggregate data1.
{cot-3-demofr:data1}->Storage Service Level 'Value' can be placed on the aggregate data1
{cot-3-demofr:data1}->Aggregate data1 can support 7.0ms, IOPS of 5535.61
{cot-3-demofr:data_ssd}->Disk shelf DS2246 found for the aggregate data_ssd.
{cot-3-demofr:data_ssd}->Storage Service Level 'Value' can be placed on the aggregate data_ssd
{cot-3-demofr:data_ssd}->Aggregate data_ssd can support 1.8ms, IOPS of 9569.38
{cot-3-demofr:data_ssd}->Building request object for the SSL 'Performance' with peak latency:2
{cot-3-demofr:data_ssd}->Computing the latency for the aggregates in the node of 'cot-3-demofr-01'.
{cot-3-demofr:data1}->Disk shelf DS2246 found for the aggregate data1.
{cot-3-demofr:data1}->Storage Service Level Performance can not be placed on the aggregate data1
{cot-3-demofr:data1}->Aggregate data1 can support 7.0ms, IOPS of 5535.61
{cot-3-demofr:data_ssd}->Disk shelf DS2246 found for the aggregate data_ssd.
{cot-3-demofr:data_ssd}->Storage Service Level 'Performance' can be placed on the aggregate data_ssd
{cot-3-demofr:data_ssd}->Aggregate data_ssd can support 1.8ms, IOPS of 9469.7
{cot-3-demofr:data_ssd}->Building request object for the SSL 'Extreme Performance' with peak latency:1
{cot-3-demofr:data_ssd}->Computing the latency for the aggregates in the node of 'cot-3-demofr-01'.
{cot-3-demofr:data1}->Disk shelf DS2246 found for the aggregate data1.
{cot-3-demofr:data1}->Storage Service Level Extreme Performance can not be placed on the aggregate data1
{cot-3-demofr:data1}->Aggregate data1 can support 16.0ms, IOPS of 5535.61
{cot-3-demofr:data_ssd}->Disk shelf DS2246 found for the aggregate data_ssd.
{cot-3-demofr:data_ssd}->Storage Service Level Extreme Performance can not be placed on the aggregate data_ssd
{cot-3-demofr:data_ssd}->Aggregate data_ssd can support 1.8ms, IOPS of 9469.7
Failed to find /ssl/ssl_configuration.xml.
Exception occurred while processing command:null
java.lang.NullPointerException
        at com.netapp.apiserver.sizer.spm.SpmServices.getHaPairs(SpmServices.java:875)
        at com.netapp.apiserver.sizer.spm.SpmServices.findNodeThroughputByHAPair(SpmServices.java:702)
        at com.netapp.apiserver.sizer.spm.SpmServices.getSizerResponse(SpmServices.java:228)
        at com.netapp.apiserver.sizer.spm.apis.SPMServicesAdapter.getSPMResponse(SPMServicesAdapter.java:123)
        at com.netapp.fassizer.cli.SizerCLI.parse(SizerCLI.java:245)
        at com.netapp.fassizer.cli.SizerCLI.main(SizerCLI.java:402)

Do you know if this is a know issue with single node cluster ontap storage system?

TIA

[pmunshi · Accepted solution]

NSLM does not support Single node cluster, The support is for HA pair.This is the reason the discovery is failing. 

[masson]

Hi pmunshi,

Thanks for the clarification

But do we have an explanation of why single node cluster are not supported?

TIA