HP StorageWorks 500 HP Smart Array Multipath Software User Guide - Page 27

Troubleshooting, Problem diagnosis, Problems during installation

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Troubleshooting In this section Problem diagnosis ...27 Problems during installation ...27 HBA failure...28 Cable failure ...28 Problem diagnosis When a problem exists with 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 I/O path status. • For Linux operating systems, use the following command to identify HBA status, multipath status, and I/O block transfer size: cat /proc/mdstatus Problems during installation This section provides systematic instructions on what to try and where to go for help for the most common problems encountered during software installation. If you encounter problems during installation: 1. In a Microsoft® environment, be sure to uninstall any previous version of the multipath software first. 2. Be sure that the firmware is upgraded for all HBAs and both MSA500 G2 controllers, if installed. 3. Be sure that the hardware installation meets the minimum requirements (on page 5). 4. Be sure that the SCSI cabling matches one of the supported four-node configurations (on page 6). 5. Be sure that the HBA is functioning properly. Refer to the appropriate server and HBA documentation. If the HBA has failed, refer to "HBA failure (on page 28)." 6. Be sure that the SCSI cables are functioning properly. If a SCSI cable fails, refer to "Cable failure (on page 28)." 7. Be sure that you followed operating system-specific instructions: • If the server has a Red Hat operating system, be sure that the active kernel is edited properly. • If the server has a Microsoft® operating system, be sure that the SCSI cable from the redundant HBA was 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. 8. If these steps do not solve the installation problem, contact an authorized reseller. Troubleshooting 27

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Troubleshooting 27
Troubleshooting
In this section
Problem diagnosis
..................................................................................................................................
27
Problems during installation
.....................................................................................................................
27
HBA failure
............................................................................................................................................
28
Cable failure
.........................................................................................................................................
28
Problem diagnosis
When a problem exists with 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 I/O path status.
•
For Linux operating systems, use the following command to identify HBA status, multipath status, and
I/O block transfer size:
cat /proc/mdstatus
Problems during installation
This section provides systematic instructions on what to try and where to go for help for the most common
problems encountered during software installation.
If you encounter problems during installation:
1.
In a Microsoft® environment, be sure to uninstall any previous version of the multipath software first.
2.
Be sure that the firmware is upgraded for all HBAs and both MSA500 G2 controllers, if installed.
3.
Be sure that the hardware installation meets the minimum requirements (on page
5
).
4.
Be sure that the SCSI cabling matches one of the supported four-node configurations (on page
6
).
5.
Be sure that the HBA is functioning properly. Refer to the appropriate server and HBA
documentation. If the HBA has failed, refer to "HBA failure (on page
28
)."
6.
Be sure that the SCSI cables are functioning properly. If a SCSI cable fails, refer to "Cable failure
(on page
28
)."
7.
Be sure that you followed operating system-specific instructions:
•
If the server has a Red Hat operating system, be sure that the active kernel is edited properly.
•
If the server has a Microsoft® operating system, be sure that the SCSI cable from the redundant
HBA was 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.
8.
If these steps do not solve the installation problem, contact an authorized reseller.