Data Domain: PANIC: ddr/repl/lrepl_client.c: mrepl_send_file: 16638: repl ctx X:X: mrepl_send_file: I/O error
Summary: This article describes the root cause and workaround for Data Domain file system panics while running recipe replication with PowerProtect Data Manager (PPDM) backups.
Bu makale şunlar için geçerlidir:
Bu makale şunlar için geçerli değildir:
Bu makale, belirli bir ürüne bağlı değildir.
Bu makalede tüm ürün sürümleri tanımlanmamıştır.
Symptoms
The file system panics repeatedly with an mtree replication I/O error. Example:
PANIC: ddr/repl/lrepl_client.c: mrepl_send_file: 16629: repl ctx 10:22: mrepl_send_file: I/O error
Cause
The root cause is that the PPDM TDSM capacity optimized workflow produced a zero length backup that served as a basefile for replication. The replication code incorrectly handled the zero length basefile/backup and identified it as an indication of corruption. This was reported as an I/O error and resulted in a DDFS panic intended to protect data integrity.
Resolution
A permanent fix will be included in DDOS 7.7.5.20, 7.10.1.10, 7.12.0.0, and later releases.
As a workaround to stabilize the file system, disable recipe replication on the source DD. A file system restart is not required for this. These commands are to be run in SE mode.
Contact Support to apply workaround.
As a workaround to stabilize the file system, disable recipe replication on the source DD. A file system restart is not required for this. These commands are to be run in SE mode.
NOTE: SE commands have been deprecated in DDOS versions 7.7.5.25, 7.10.1.15, 7.13.0.15, 6.2.1.110 and above and are accessible only by Dell employees
Contact Support to apply workaround.
Etkilenen Ürünler
Data Domain, DD OS, DD OS 7.10, DD OS 7.11, DD OS 7.7, DD OS 7.8, DD OS 7.9Makale Özellikleri
Article Number: 000217104
Article Type: Solution
Son Değiştirme: 29 Mar 2024
Version: 3
Sorularınıza diğer Dell kullanıcılarından yanıtlar bulun
Destek Hizmetleri
Aygıtınızın Destek Hizmetleri kapsamında olup olmadığını kontrol edin.