Best practices for using IBM Spectrum LSF through an LDAP user

After you integrate OpenLDAP with your Spectrum LSF cluster, refer to the following guidance for best practices when running LSF commands and submitting LSF jobs as an LDAP user.

All the following commands can also be run from the login node.

Log in to the management node by using the ssh_to_management_node value as shown as part of output section of Schematics job log:
- Primary management node:
```
ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -J vpcuser@<floating_IP_address> lsfadmin@<management_node_IP_address>
```
Where <floating_IP_address> is the floating IP address for the bastion node and <management_node_IP_address> is the IP address for the management node.
- Login node:
```
ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -J vpcuser@<floating_IP_address> lsfadmin@<login_node_IP_address>
```
Where <floating_IP_address> is the floating IP address for the bastion node and <login_node_IP_address> is the IP address for the login node.

Switch to the LDAP user (for example, switch to lsfuser05):

$ [lsfadmin@lsfuser05-ubuntu-two-mgmt-1 ~]$ su lsfuser05
Password:
$ [lsfuser05@lsfuser05-ubuntu-two-mgmt-1 lsfadmin]#

Run LSF commands as the LDAP user:

$ [lsfuser05@lsfuser05-ubuntu-two-mgmt-1 lsfadmin]$ lshosts -w
HOST_NAME                        type   model    cpuf ncpus maxmem maxswp server RESOURCES
lsfuser05-ubuntu-two-mgmt-1 X86_64 Intel_E5 12.5 2     7.5G   -      Yes    (mg)
lsfuser05-ubuntu-two-mgmt-2 X86_64 Intel_E5 12.5 2     7.5G   -      Yes    (mg)
lsfuser05-ubuntu-two-mgmt-3 X86_64 Intel_E5 12.5 2     7.5G   -      Yes    (mg)

$ [lsfuser05@lsfuser05-ubuntu-two-mgmt-1 lsfadmin]$ bhosts -w
HOST_NAME                        STATUS      JL/U MAX NJOBS RUN SSUSP USUSP RSV
lsfuser05-ubuntu-two-mgmt-1 closed_Full -    0   0     0   0     0     0
lsfuser05-ubuntu-two-mgmt-2 closed_Full -    0   0     0   0     0     0
lsfuser05-ubuntu-two-mgmt-3 closed_Full -    0   0     0   0     0     0

$ [lsfuser05@lsfuser05-ubuntu-two-mgmt-1 lsfadmin]$ lsload
HOST_NAME            status r15s r1m r15m ut pg  ls it tmp swp mem
lsfuser05-ubuntu-tes ok     0.0  0.0 0.0  0% 0.0 0  58 89G 0M  6.8G
lsfuser05-ubuntu-tes ok     0.0  0.0 0.0  0% 0.0 0  58 89G 0M  6.8G
lsfuser05-ubuntu-tes ok     0.0  0.4 0.1  4% 0.0 1  0  89G 0M  4.7G

$ [lsfuser05@lsfuser05-ubuntu-two-mgmt-1 lsfadmin]$ lsclusters
CLUSTER_NAME STATUS MASTER_HOST                  ADMIN    HOSTS SERVERS
HPC-LSF-2    ok     lsfuser05-ubuntu-two-mgmmt-1 lsfadmin 3     3

$ [lsfuser05@lsfuser05-ubuntu-two-mgmt-1 lsfadmin]$ bjobs
No unfinished job found

$ [lsfuser05@lsfuser05-ubuntu-two-mgmt-1 lsfadmin]$ lsid
IBM Spectrum LSF Standard 10.1.0.14, Dec 18 2023
Copyright International Business Machines Corp. 1992, 2016.
US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.

My cluster name is HPC-LSF-2
My master name is lsfuser05-ubuntu-two-mgmt-1

Submit an LSF job as the LDAP user:
```
$ bsub -n 8 sleep 30
```