- Problem Statement:

Main SC fails over to spare SC due to low system memory.

- Symptoms:

Messages from Main SC:

Jun 28 11:25:50 2002 v4u-15ka-sc1 fomd[347]: [8567 2220835155213 NOTICE Failover
Mgr.cc 1782] Failing over to the spare SC because of the following faults on the main SC: Low System Memory

Messages from Spare SC:

Jun 28 11:26:37 2002 v4u-15ka-sc0 fomd[378]: [8573 632701993069 NOTICE FailoverM
gr.cc 2010] Taking over the main role because the remote SC (current Main) has a fault - Low System Memory
            

- Troubleshooting:

Display your swap devices:

v4u-15ka-sc1:sms-svc:5> swap -l
swapfile             dev  swaplo blocks   free
/dev/dsk/c0t3d0s1   32,25     16 263856 263856

Take the number under the blocks column * 512.

For example:

263856*512=135,094,272 

In this case, there is approximately 135 megabytes of swap.
There must be at least 2 gigabytes of swap.

- Resolution:

Add swap space to your existing swap space to total at least 2 gigabytes.

NOTE: Verify BOTH the main & spare SC have at least
      2 gigabytes of swap space.

- Summary of part number and patch ID's 

        
- References and bug IDs

FIN #: I0748-1 Sun Fire 15K System Controller should be configured with at least 2 Gbytes swap space.

- Additional background information

- Meta-Data/Problem categorization:

Product/Platform: SF15K
Category: 

- Keywords

low system memory failover failing over swap