Troubleshooting
Problem
IBM i hosting IBM i it is unsafe to use CHGNWSSTG to increase the size of the Guest IBM i Load source dynamically. The IBM i Guest will fail to start.
Symptom
CHGNWSSTG appears to work, however the Guest IBM i fails to start with SRCA6005090 / A6005090.
Cause
CHGNWSSTG should never be used to dynamically increase the size of any IBM i DASD.
http://www-01.ibm.com/support/docview.wss?uid=nas8N1013660
http://www-01.ibm.com/support/docview.wss?uid=nas8N1013660
Environment
Any IBM i hosting IBM i server.
Diagnosing The Problem
Guest LPAR will fail to start posting SRCA6005090 A6005090.
Resolving The Problem
Follow these steps to safely increase the size of an IBM i guest load source DASD.
1. CRTNWSSTG one new storage space of size 75712 (old ones (all 4 virtual disks) are 25603)
Document N1012304: http://www-01.ibm.com/support/docview.wss?uid=nas8N1012304 .
This document lists a 78756 MB (based on Technote formula) network storage space.
2. Power down the Guest LPAR
3. Vary off *NWSD
4. Link new storage space to Guest LPAR
5. Vary on *NWSD
6. Manual IPL to DST
7. New storage space should show up non-configured
8. Copy disk unit data from current load source to new non-configured disk: See step 5 in
https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_72/rzaly/rzalylsnprot.htm
9. Power off the Guest LPAR (from SST, Start Service Tool, Operator Panel Functions, F10)
10. Vary off the *NWSD
11. Unlink old load source storage space
12 Vary on *NWSD
13. Manual IPL
Refer to Document N1012304 (http://www.ibm.com/support/docview.wss?uid=nas8N1012304) to calculate the size of the virtual disk
1. CRTNWSSTG one new storage space of size 75712 (old ones (all 4 virtual disks) are 25603)
Document N1012304: http://www-01.ibm.com/support/docview.wss?uid=nas8N1012304 .
This document lists a 78756 MB (based on Technote formula) network storage space.
2. Power down the Guest LPAR
3. Vary off *NWSD
4. Link new storage space to Guest LPAR
5. Vary on *NWSD
6. Manual IPL to DST
7. New storage space should show up non-configured
8. Copy disk unit data from current load source to new non-configured disk: See step 5 in
https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_72/rzaly/rzalylsnprot.htm
9. Power off the Guest LPAR (from SST, Start Service Tool, Operator Panel Functions, F10)
10. Vary off the *NWSD
11. Unlink old load source storage space
12 Vary on *NWSD
13. Manual IPL
Refer to Document N1012304 (http://www.ibm.com/support/docview.wss?uid=nas8N1012304) to calculate the size of the virtual disk
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Document Information
Modified date:
31 October 2021
UID
nas8N1020188