HP StorageWorks 500 HP StorageWorks Smart Array Multipath software user guide - Page 31

Troubleshooting, Problem diagnosis, Problems during installation

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5 Troubleshooting This chapter discusses the following topics: • Problem diagnosis • Problems during installation • HBA failure • Cable failure Problem diagnosis If the problem is related to the multipath I/O, consult the Insight Management Agents and do one of the following: • For Microsoft operating systems: • Use the ProLiant Storage Manager or ProLiant Multipath Manager FAQs. • Use the ProLiant Storage Manager with ProLiant Multipath Manager software, and the DME to identify the I/O path status. • For Linux operating systems, enter the following command to identify HBA status, multipath status, and I/O block transfer size: cat /proc/mdstatus Problems during installation This section describes how to troubleshoot the most common problems encountered during software installation. To troubleshoot the problems encountered during installation, complete the following steps: 1. In a Microsoft environment, uninstall any previous version of the multipath software first. 2. Ensure that the firmware is upgraded for all HBAs and both the MSA500 G2 controllers, if installed. 3. Ensure that the hardware installation meets the Minimum requirements. 4. Ensure that the SCSI cabling matches one of the Supported four-node configurations. 5. Ensure that the HBA is functioning properly. See the appropriate server and HBA documentation. If the HBA has failed, see HBA failure. 6. Ensure that the SCSI cables are functioning properly. If a SCSI cable fails, see Cable failure. 7. Ensure that you followed operating system-specific instructions: • If the server has a Red Hat operating system, ensure that the active kernel is edited properly. • If the server has a Microsoft operating system, ensure that the SCSI cable from the redundant HBA is disconnected before Smart Array Multipath software installation. IMPORTANT: After establishing a redundant configuration and adding a logical volume, use Windows Disk Manager to detect the new volume. • If these steps do not solve the installation problem, contact an authorized reseller. Smart Array Multipath software user guide 31

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5 Troubleshooting
This chapter discusses the following topics:
•
Problem diagnosis
•
Problems during installation
•
HBA failure
•
Cable failure
Problem diagnosis
If the problem is related to the multipath I/O, consult the Insight Management Agents and do one
of the following:
•
For Microsoft operating systems:
•
Use the ProLiant Storage Manager or ProLiant Multipath Manager FAQs.
•
Use the ProLiant Storage Manager with ProLiant Multipath Manager software, and the DME to
identify the I/O path status.
•
For Linux operating systems, enter the following command to identify HBA status, multipath status,
and I/O block transfer size:
cat /proc/mdstatus
Problems during installation
This section describes how to troubleshoot the most common problems encountered during software
installation.
To troubleshoot the problems encountered during installation, complete the following steps:
1.
In a Microsoft environment, uninstall any previous version of the multipath software
fi
rst.
2.
Ensure that the
fi
rmware is upgraded for all HBAs and both the MSA500 G2 controllers, if
installed.
3.
Ensure that the hardware installation meets the
Minimum requirements
.
4.
Ensure that the SCSI cabling matches one of the
Supported four-node con
fi
gurations
.
5.
Ensure that the HBA is functioning properly. See the appropriate server and HBA documentation.
If the HBA has failed, see
HBA failure
.
6.
Ensure that the SCSI cables are functioning properly. If a SCSI cable fails, see
Cable failure
.
7.
Ensure that you followed operating system-speci
fi
c instructions:
•
If the server has a Red Hat operating system, ensure that the active kernel is edited properly.
•
If the server has a Microsoft operating system, ensure that the SCSI cable from the redundant
HBA is disconnected before Smart Array Multipath software installation.
IMPORTANT:
After establishing a redundant con
fi
guration and adding a logical volume, use Windows Disk
Manager to detect the new volume.
•
If these steps do not solve the installation problem, contact an authorized reseller.
Smart Array Multipath software user guide
31