Oracle Sun Fire X4170 M2 Product Notes page 15

1. When running the Oracle ILOM Snapshot utiltiy, run the fewest number of command-
line interface (CLI) or web interface sessions necessary. Keep only one interface session
running, and ideally, run the Snapshot utility using the CLI. Do not run multiple tasks
concurrently in different interface sessions.
2. If you need to run multiple interface sessions, run up to a maximum of five sessions.
The five-session limitation can include all CLI sessions, four CLI sessions with one web
interface session, or four CLI sessions with one Remote System Console session. Avoid
running or trying to open more than one web interface session or more than one Remote
System Console session simultaneously with the CLI sessions.
3. When updating Oracle ILOM, use the load -source PKG_URL CLI command with the
PKG_URL as a TFTP/FTP/SFTP-based protocol. Do not use an HTTP/HTTPS protocol in
the package URL, if possible. Avoid updating Oracle ILOM using the web interface by
uploading a package file or providing a PKG_URL. If the Oracle ILOM update fails, Oracle
ILOM will boot into Preboot. Use the CLI net flash command to rescue the update with
the flash file in the release:
a. Use the net config command to set ipdiscovery, managementport, and other
configurations. (You can list the configuration parameters using the show command.)
b. Use the net dhcp command to obtain the IP address if ipdiscovery is configured as
DHCP.
c. Use the net flash TFTP-server-IP-address path-to-flash-file command to flash
Oracle ILOM.
Diagnosing SAS Data Path Failures on Servers Using
MegaRAID Disk Controllers
On Oracle x86 servers using MegaRAID disk controllers, Serial Attached SCSI (SAS) data
path errors can occur. To triage and isolate a data path problem on the SAS disk controller, disk
backplane (DBP), SAS cable, SAS expander, or hard disk drive (HDD), gather and review the
events in the disk controller event log. Classify and analyze all failure events reported by the
disk controller based on the server SAS topology.
To classify a MegaRAID disk controller event:
Gather and parse the MegaRAID disk controller event logs either by running the automated
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sundiag utility or manually using the MegaCLI or StorCLI commands.
For Oracle Exadata Database Machine database or storage cell servers, run the sundiag
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utility.
For the Sun Fire X4170 M2 and X4270 M2 Servers, use the MegaCLI command.
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For example, manually gather and parse the controller event log by using the MegaCLI
command. At the root prompt, type:
Important – Install Latest OS Updates, Patches, and Firmware
Sun Fire X4170 M2 and X4270 M2 Servers Product Notes 15