When RMAN reports RMAN-10035, ORA-19502, and ORA-27030 during an SBT backup, the useful diagnosis is usually in the final media-manager message. The Oracle stack says the backup write failed; the vendor text says why.
Read the error stack from the bottom
ORA-19502: write error on file ...
ORA-27030: skgfwrt: sbtwrite2 returned error
ORA-19511: vendor-specific error textORA-19511 means the linked media-management software returned a failure. Treat the vendor message, backup-server logs, and SBT trace as the primary evidence.
Examples from IBM Storage Protect
ANS1017E (RC-50): the session could not connect or continue. Check the server activity log, network path, listener, and timeout messages at the same time.ANS1329S (RC29): the server is out of data-storage space. Check the target storage pool, scratch media, and migration thresholds.ANS1301E (RC1): a generic server error. Use the server activity log and Oracle media-manager trace to find the specific cause.
Troubleshooting sequence
- Save the complete RMAN log and exact failure time.
- Find
sbtio.logor the trace location configured by the media-management library. - Correlate the channel and backup-piece name with the vendor server’s activity log.
- Check connectivity, storage capacity, media availability, and the health of vendor services.
- Retry only after the underlying condition is corrected. A different RMAN channel does not repair a full storage pool or broken session.
About timeout changes
Increase a communication or idle timeout only when logs show that a healthy operation is being terminated for exceeding that limit. Timeout changes do not fix exhausted storage, a stopped service, or a network failure.
Reference
Oracle’s ORA-19511 reference identifies these as media-manager or vendor-specific failures.
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