IJ44440: NVME AND SSD DISK WAS PUT INTO ONE DA WHEN RG CREATION

APAR status

• Closed as program error.

Error description

• We found the NVMe and SSD disks were put into
  one DA when RG creation. The disk size is
  almost the same, and both have spin = 0,
  then GNR thinks it's the same type of disk.
  

Local fix

Problem summary

• Problem description in customer terms:
  We found the NVMe and SSD disks were put into
  one DA when RG creation. The disk size is
  almost the same, and both have spin = 0,
  then GNR thinks it's the same type of disk.
  

Problem conclusion

• This problem is fixed in 5.1.6.1
  To see all Spectrum Scale APARs and their respective
  Fix solutions refer to page:
  https://public.dhe.ibm.com/storage/spectrumscale/spectrum_scale_
  apars.html
  
  Benefits of the solution:
  NVMe and SSD disks are placed into different
  declustered arrays even when they have same size.
  
  Work Around: None
  
  Problem trigger: NVMe and SSD disks have same size.
  
  Symptom:
  Unexpected Results/Behavior
  
  Platforms affected: Linux Only
  
  Functional Area affected: ESS/GNR
  
  Customer Impact: High Importance
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  SPEC SCALE STD

• Fixed component ID

  5737F33AP

Applicable component levels