nodels.1

NAME

nodels - lists the nodes, and their attributes, from the xCAT database.

SYNOPSIS

nodels [noderange] [-b | --blame] [-H | --with-fieldname] [-S] [table.column | shortname] […]

nodels [noderange] [-H | --with-fieldname] [table]

nodels [-? | -h | --help | -v | --version]

DESCRIPTION

The nodels command lists the nodes specified in the node range. If no noderange is provided, then all nodes are listed.

Additional attributes of the nodes will also be displayed if the table names and attribute names are specified after the noderange in the form: table.column . A few shortcut names can also be used as aliases to common attributes:

groups

nodelist.groups

tags

nodelist.groups

mgt

nodehm.mgt

nodels can also select based on table value criteria. The following operators are available:

==

Select nodes where the table.column value is exactly a certain value.

!=

Select nodes where the table.column value is not a given specific value.

=~

Select nodes where the table.column value matches a given regular expression.

!~

Select nodes where the table.column value does not match a given regular expression.

The nodels command with a specific node and one or more table.attribute parameters is a good substitute for grep’ing through the tab files, as was typically done in xCAT 1.x. This is because nodels will translate any regular expression rows in the tables into their meaning for the specified node. The tab* commands will not do this, instead they will just display the regular expression row verbatim.

OPTIONS

-v|--version

Command Version.

-H|--with-fieldname

Force display of table name and column name context for each result

-b|--blame

For values inherited from groups, display which groups provided the inheritance

-S

List all the hidden nodes (FSP/BPA nodes) with other ones.

-?|-h|--help

Display usage message.

RETURN VALUE

0 The command completed successfully.

1 An error has occurred.

EXAMPLES

1. To list all defined nodes, enter:

   nodels
   

   Output is similar to:

   node1
   node2
   node3
   

2. To list all defined attributes in a table for a node or noderange, enter:

   nodels rra001a noderes
   

   Output is similar to:

   rra001a: noderes.primarynic: eth0
   rra001a: noderes.xcatmaster: rra000
   rra001a: noderes.installnic: eth0
   rra001a: noderes.netboot: pxe
   rra001a: noderes.servicenode: rra000
   rra001a: noderes.node: rra001a
   

3. To list nodes in node group ppc, enter:

   nodels ppc
   

   Output is similar to:

   ppcnode1
   ppcnode2
   ppcnode3
   

4. To list the groups each node is part of:

   nodels all groups
   

   Output is similar to:

   node1: groups: all
   node2: groups: all,storage
   node3: groups: all,blade
   

5. To list the groups each node is part of:

   nodels all nodehm.power
   

   Output is similar to:

   node1: nodehm.power: blade
   node2: nodehm.power: ipmi
   node3: nodehm.power: ipmi
   

6. To list the out-of-band mgt method for blade1:

   nodels blade1 nodehm.mgt
   

   Output is similar to:

   blade1: blade
   

7. Listing blades managed through an AMM named ‘amm1’

   nodels all mp.mpa==amm1
   

   Output is similar to:

   blade1
   blade10
   blade11
   blade12
   blade13
   blade2
   blade3
   blade4
   blade5
   blade6
   blade7
   blade8
   blade9
   

8. Listing the switch.switch value for nodes in the second rack:

   nodels all nodepos.rack==2 switch.switch
   

   Output is similar to:

   n41: switch.switch: switch2
   n42: switch.switch: switch2
   n43: switch.switch: switch2
   n44: switch.switch: switch2
   n45: switch.switch: switch2
   n46: switch.switch: switch2
   n47: switch.switch: switch2
   n55: switch.switch: switch2
   n56: switch.switch: switch2
   n57: switch.switch: switch2
   n58: switch.switch: switch2
   n59: switch.switch: switch2
   n60: switch.switch: switch2
   

9. Listing the blade slot number for anything managed through a device with a name beginning with amm:

   nodels all mp.mpa=~/^amm.*/ mp.id
   

   Output looks like:

   blade1: mp.id: 1
   blade10: mp.id: 10
   blade11: mp.id: 11
   blade12: mp.id: 12
   blade13: mp.id: 13
   blade2: mp.id: 2
   blade3: mp.id: 3
   blade4: mp.id: 4
   blade5: mp.id: 5
   blade6: mp.id: 6
   blade7: mp.id: 7
   blade8: mp.id: 8
   blade9: mp.id: 9
   

10. To list the hidden nodes that can’t be seen with other flags. The hidden nodes are FSP/BPAs.

    lsdef -S
    

FILES

/opt/xcat/bin/nodels

SEE ALSO

noderange(3)|noderange.3, tabdump(8)|tabdump.8, lsdef(1)|lsdef.1