LLTSHOW(1M)

NAME

lltshow - Low Latency Transport (LLT) Protocol kernel data utility

SYNOPSIS

lltshow -b

lltshow -p port

lltshow -n node

lltshow -l link

lltshow -e event

lltshow -s

lltshow -t

lltshow -B

DESCRIPTION

The lltshow utility displays the contents of LLT’s kernel structures and trace buffers internal to the protocol. It is primarily a debugging tool.

OPTIONS

-b Display the LLT kernel trace buffer, which shows the most recent packets transmitted and received.
-p port Display the kernel structure representing the port.
-l link Display the kernel structure representing the link.
-n node Display the kernel structure representing the node.
-e event Display the statistics for a given LLT event. You can specify the value of the event as one of the following:

1 - timer interrupt

2 - out of band heartbeat

-s Display the LLT statistics structure. The lltstat command is the recommended alternative.
-t Display the last few delayed timeouts.
-B Display the statistics of the LLT buffer pool. The LLT buffer pool allocates memory for the packets that are delivered to the client of LLT at the receiver node. This option is supported only on selected versions of Linux.

CORE FILE USAGE

Linux Start Crash tool with the vmlinux (kernel image) file and vmcore (coredump) file as arguments. Execute the following commands at the crash prompt to use the LLT Crash plugin:

- mod -s llt

- extend /opt/VRTSllt/lltcrash.so

Once the plugin is loaded, the \(cqlltshow\(cq command can be used at the crash prompt, with the same options as seen above.

1 Copy kdb plugin from /opt/VRTSllt/lltdrv64.kdb to /usr/lib/ras/autoload directory.

Start kdb with the system dump and then the \(cqlltshow\(cq command can be used at the kdb prompt, with the same options as seen above.

Solaris
  Pass the following additional options to lltshow command:

-u unixfile: Path to kernel image file.

-c system dumpfile: Path to system dump file.

COPYRIGHTS

Copyright (c) 2016 Veritas.

All rights reserved.


VCS 7.2 LLTSHOW(1M)