The download document "Download Information: 10.1.5 e-Fix bundles for IBM Spectrum Protect™ Plus" 
at: http://www.ibm.com/support/docview.wss?uid=ibm11135035 contain information's about:

1. APARs addressed in this version
2. Update procedure for:
- IBM Spectrum Protect Plus virtual appliance, and 
- vSnap server