If The Enclosure Does Not Initialize; Correcting Enclosure Ids; Host I/O; Dealing With Hardware Faults - Seagate RealStor 5005 Series Hardware Installation

If the enclosure does not initialize

It may take up to two minutes for all enclosures to initialize. If an enclosure does not initialize:
• Perform a rescan
• Power cycle the system
• Make sure the power cord is properly connected, and check the power source to which it is connected
• Check the event log for errors

Correcting enclosure IDs

When installing a system with drive enclosures attached, the enclosure IDs might not agree with the physical cabling
order. This is because the controller might have been previously attached to enclosures in a different configuration, and it
attempts to preserve the previous enclosure IDs, if possible. To correct this condition, make sure that both controllers are
up, and perform a rescan using the SMC or the CLI. This will reorder the enclosures, but can take up to two minutes for
the enclosure IDs to be corrected.
To perform a rescan using the CLI, type the following command:
rescan
To perform a rescan using the SMC:
1. Verify that both controllers are operating normally.
2. In the System topic, select Action > Rescan Disk Channels.
3. Click Rescan.

Host I/O

When troubleshooting disk drive and connectivity faults, stop I/O to the affected disk groups from all hosts as a data
protection precaution. As an additional data protection precaution, it is helpful to conduct regularly scheduled backups of
your data. See also

Dealing with hardware faults

Ensure that you have obtained a replacement module of the same type before removing any faulty module as described
in "Module removal and replacement" (page
IMPORTANT: If the enclosure system is powered up and you remove any module, replace it immediately. If the system
is used with any modules missing for more than a few seconds, the enclosure(s) can overheat, causing power failure and
potential data loss. Such action can invalidate the product warranty.
IMPORTANT: Observe applicable/conventional ESD precautions when handling modules and components, as
described in "ESD precautions" (page
exposed circuitry.

Isolating a host-side connection fault

During normal operation, when a controller module host port is connected to a data host, the port's host link status/link
activity LED is green. If there is I/O activity, the host activity LED blinks green. If data hosts are having trouble accessing
the storage system, and you cannot locate a specific fault or cannot access the event logs, use the following procedures.
This procedure requires scheduled downtime.
"Stopping I/O" (page 88).
77).
77). Avoid contact with midplane components, module connectors, leads, pins, and
Host I/O 65