NonStop NS-Series Operations Guide (H06.12+)

10 Disk Drives: Monitoring and Recovery..................................................................121
When to Use This Section....................................................................................................................121
Overview of Disk Drives ....................................................................................................................121
Internal SCSI Disk Drives..............................................................................................................122
M8xxx Fibre Channel Disk Drives.................................................................................................122
Enterprise Storage System (ESS) Disks..........................................................................................123
Monitoring Disk Drives......................................................................................................................123
Monitoring Disk Drives With OSM...............................................................................................123
Monitoring Disk Drives With SCF ................................................................................................124
Examples..................................................................................................................................125
Monitoring the State of Disk Drives..............................................................................................127
Monitoring the Use of Space on a Disk Volume............................................................................128
Monitoring the Size of Database Files...........................................................................................128
Example....................................................................................................................................128
Monitoring Disk Configuration and Performance........................................................................129
Identifying Disk Drive Problems........................................................................................................129
Internal SCSI Disk Drives..............................................................................................................129
M8xxx Fibre Channel Disk Drives.................................................................................................129
Recovery Operations for Disk Drives ................................................................................................130
Recovery Operations for a Down Disk or Down Disk Path..........................................................131
Recovery Operations for a Nearly Full Database File...................................................................132
Related Reading..................................................................................................................................133
11 Tape Drives: Monitoring and Recovery.................................................................135
When to Use This Section....................................................................................................................135
Overview of Tape Drives....................................................................................................................135
Monitoring Tape Drives......................................................................................................................135
Monitoring Tape Drive Status With OSM.....................................................................................135
Monitoring Tape Drive Status With SCF.......................................................................................137
Example....................................................................................................................................138
Monitoring Tape Drive Status With MEDIACOM........................................................................138
Example....................................................................................................................................138
Monitoring the Status of Labeled-Tape Operations......................................................................139
Identifying Tape Drive Problems........................................................................................................139
Recovery Operations for Tape Drives ................................................................................................140
Recovery Operations Using the OSM Service Connection............................................................140
Performing an OSM Action on a Tape Drive...........................................................................140
Performing an OSM Action on a Multiple Tape Drives...........................................................140
Recovery Operations Using SCF...................................................................................................140
Related Reading..................................................................................................................................141
12 Printers and Terminals: Monitoring and Recovery...............................................143
When to Use This Section....................................................................................................................143
Overview of Printers and Terminals ..................................................................................................143
Monitoring Printer and Collector Process Status................................................................................143
Monitoring Printer Status..............................................................................................................143
Monitoring Collector Process Status.............................................................................................144
Recovery Operations for Printers and Terminals...............................................................................144
Recovery Operations for a Full Collector Process.........................................................................144
Related Reading..................................................................................................................................144
13 Applications: Monitoring and Recovery................................................................145
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