Qlogic Fast Fabric, User Manual

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5 – Detailed Descriptions of Command LineTools
D000006-000 Rev A 5-19
Q
For operations against chassis use of the
-S
option is recommended. This avoids
the need to keep the password in configuration files.
NOTE: The resulting host capture files can require significant amounts of space
on the Fast Fabric host. Actual size will vary, but sizes can be multiple
megabytes per host. As such it is recommended to ensure adequate
space is available on the Fast Fabric system. In many cases it may not
be necessary to run
captureall
against all hosts or chassis, but rather
a representative subset may be sufficient. Consult with your support
representative for further information.
5.3
File Management Tools
The following tools aid in copying files to and from large groups of nodes in the
fabric.
Internally, these tools make use of SCP and require that password-less SSH/SCP
be setup between the host running Fast Fabric and the hosts files that are being
transferred to and from. The
setup_ssh
Fast Fabric tool can aid in setting up
password-less SSH/SCP.
5.3.1
scpall
(Linux) : The
scpall
tool permits efficient copying of files or directories from the
current system to multiple hosts in the fabric. When copying large directory trees,
performance can be improved by using the
-t
option. This will tar and compress
the tree, then transfer the resulting compressed tarball to each node (and untar
it on each node).
This can provide a powerful facility for copying data files, operating system files
or even applications to all the hosts (or a subset of hosts) within the fabric.
Usage:
scpall [-p] [-r] [-f hostfile] [-h 'hosts'] [-u user] source_file
... dest_file
scpall -t [-p] [-f hostfile] [-h 'hosts'] [-u user] [source_dir
[dest_dir]]
Options are:
-r
- recursive copy of directories
-p
- perform copy in parallel
-t
- optimized recursive copy of directories using tar
-h hosts
- list of hosts to copy to