NonStop Operations Guide for H-Series and J-Series RVUs

13 Tape Drives: Monitoring and Recovery
• “When to Use This Chapter” (page 155)
• “Overview of Tape Drives” (page 155)
• “Monitoring Tape Drives” (page 155)
“Monitoring Tape Drive Status With OSM” (page 156)◦
◦ “Monitoring Tape Drive Status With SCF” (page 157)
◦ “Monitoring Tape Drive Status With MEDIACOM” (page 158)
◦ “Monitoring the Status of Labeled-Tape Operations” (page 159)
• “Identifying Tape Drive Problems” (page 159)
• “Recovery Operations for Tape Drives ” (page 160)
“Recovery Operations Using the OSM Service Connection” (page 160)◦
◦ “Recovery Operations Using SCF” (page 160)
• “Related Reading for Tapes and Tape Drives” (page 161)
When to Use This Chapter
This chapter provides an overview of operating, monitoring, and recovery operations for tape
drives attached to NonStop BladeSystems or NonStop NS-series systems.
Overview of Tape Drives
For a listing of the tape drives supported by various NonStop systems and how the tape drives are
attached, refer to the planning guide for your NonStop system.
Tape drives with a multimode fibre channel (MMF) MMF interface are connected directly to a fibre
port on an FCSA in an IOAME or VIO enclosure. Some high voltage differential (HVD) SCSI drives
are also supported in the NonStop optical environment. These drives are connected using an
M8201 fibre channel to SCSI router. The M8201 converts the FCSA MMF connection into two
SCSI buses. Currently, only optical port 0 is used on the M8201. The SCSI drives are connected
using 68-pin to 68-pin HVD SCSI cables. These cables have a high density connector for the
M8201.
Most drives supported on NonStop S-series can be connected to a NonStop BladeSystem or
NonStop NS16000 series system through an IOMF2 in an IOMF enclosure. The drives can be
interfaced in the same manner that is supported in S-series, either through an SNDA or a SCSI
port on an IOMF2 board. OSM provides different views for drives that are connected through an
FCSA versus an IOMF2. See “Monitoring Tape Drives” (page 155).
For further information, refer to the Planning Guide for your NonStop system.
Monitoring Tape Drives
This section describes the various methods of tape drives, which include:
• OSM Service Connection
• SCF
• Use MEDIACOM to monitor the use of tape drives and to write tape labels.
When to Use This Chapter 155