SAP Note 1650046 - GPFS maintenance after SAP HANA node has failed

Composant : Linux on IBM Hardware - SAP HANA database

Solution : https://service.sap.com/sap/support/notes/1650046 (Connexion à SAP Service Marketplace requise)

Résumé :
When a SAP HANA cluster node undergoes a hard reset or hardware failure, its reintegration post-recovery involves a critical check on the GPFS file system it relies on. The solution mandates the system administrator to authenticate the operational status of GPFS using various commands, verifying the functionality of all related disks, system mounting, and file system integrity eligibility. Proper functioning returned by these commands is essential for ensuring that the SAP HANA node can resume roles such as stand-by or worker in the cluster without jeopardizing data integrity or performance. Guidelines and scripts for assisting administrators in this task are provided, alongside dedicated support material.

Mots Clés :
gpfs state------------------------------------------      1      gpfsnode1        active      2      gpfsnode2        active      3      gpfsnode3        active      4      gpfsnode4        active      5      gpfsnode5        active      6      gpfsnode6        active      7      gpfsnode7        active      8      gpfsnode8        active# /usr/lpp/mmfs/bin/mmlsmount sapmntdata  -lfile system sapmntdata, 105   gpfsnode5# /usr/lpp/mmfs/bin/mmfsck sapmntdata -ochecking, # /usr/lpp/mmfs/bin/mmlsdisk sapmntdata -eall disks, ready# /usr/lpp/mmfs/bin/mmgetstate -, 1008940216 subblocks     2685447   allocated          71   unreferenced          71   deallocated       91770 addresses           0   suspendedfile system, resuming normal sap hana operation, underlying gpfs file system, gpfs file system level, newly repaired sap hana appliance, gpfs problem determination guide

Notes associées :

171356SAP software on Linux: General information