Platform LSF – Working with Hosts (bhost, lsload)

Taken from LSF Platform Administrative Guide. The Document on bhost and lsload and more information can be taken from Platform - Working with hosts. Although your version of LSF may be different, but the commands can be still use.

Here are some excerpts.....

Host status Host status describes the ability of a host to accept and run batch jobs in terms of daemon states, load levels, and administrative controls. The bhosts and lsload commands display host status.    

1. bhosts Displays the current status of the host

STATUS	DESCRIPTION
ok	Host is available to accept and run new batch jobs
unavail	Host is down, or LIM and sbatchd are unreachable.
unreach	LIM is running but sbatchd is unreachable.
closed	Host will not accept new jobs. Use bhosts -l to display the reasons.
unlicensed	Host does not have a valid license.

2. bhosts -l Displays the closed reasons. A closed host does not accept new batch jobs:

$ bhosts -l
HOST  node001
STATUS           CPUF  JL/U    MAX  NJOBS    RUN  SSUSP  USUSP    RSV DISPATCH_WINDOW
closed_Adm      60.00     -     16      0      0      0      0      0      -

CURRENT LOAD USED FOR SCHEDULING:
r15s   r1m  r15m    ut    pg    io   ls    it   tmp   swp   mem   root maxroot
Total           0.0   0.0   0.0    0%   0.0     0    0 28656  324G   16G   60G  3e+05   4e+05
Reserved        0.0   0.0   0.0    0%   0.0     0    0     0    0M    0M    0M    0.0     0.0

processes clockskew netcard iptotal  cpuhz cachesize diskvolume
Total             404.0       0.0     2.0     2.0 1200.0     2e+04      5e+05
Reserved            0.0       0.0     0.0     0.0    0.0       0.0        0.0

processesroot   ipmi powerconsumption ambienttemp cputemp
Total                 396.0   -1.0             -1.0        -1.0    -1.0
Reserved                0.0    0.0              0.0         0.0     0.0


aa_r aa_r_dy aa_dy_p aa_r_ad aa_r_hpc fluentall fluent fluent_nox
Total         17.0    25.0   128.0    10.0    272.0      48.0   48.0       50.0
Reserved       0.0     0.0     0.0     0.0      0.0       0.0    0.0        0.0

gambit geom_trans tgrid fluent_par
Total           50.0       50.0  50.0      193.0
Reserved         0.0        0.0   0.0        0.0

3. bhosts -X Condensed host groups in an condensed format

$ bhosts -X
HOST_NAME          STATUS       JL/U    MAX  NJOBS    RUN  SSUSP  USUSP    RSV
comp027            ok              -     16      0      0      0      0      0
comp028            ok              -     16      0      0      0      0      0
comp029            ok              -     16      0      0      0      0      0
comp030            ok              -     16      0      0      0      0      0
comp031            ok              -     16      0      0      0      0      0
comp032            ok              -     16      0      0      0      0      0
comp033            ok              -     16      0      0      0      0      0

4. bhosts -l hostID Display all information about specific server host such as the CPU factor and the load thresholds to start, suspend, and resume jobs

# bhosts -l comp067
HOST  comp067
STATUS           CPUF  JL/U    MAX  NJOBS    RUN  SSUSP  USUSP    RSV DISPATCH_WINDOW
ok              60.00     -     16      0      0      0      0      0      -

CURRENT LOAD USED FOR SCHEDULING:
r15s   r1m  r15m    ut    pg    io   ls    it   tmp   swp   mem   root maxroot
Total           0.0   0.0   0.0    0%   0.0     0    0 13032  324G   16G   60G  3e+05   4e+05
Reserved        0.0   0.0   0.0    0%   0.0     0    0     0    0M    0M    0M    0.0     0.0

processes clockskew netcard iptotal  cpuhz cachesize diskvolume
Total             406.0       0.0     2.0     2.0 1200.0     2e+04      5e+05
Reserved            0.0       0.0     0.0     0.0    0.0       0.0        0.0

processesroot   ipmi powerconsumption ambienttemp cputemp
Total                 399.0   -1.0             -1.0        -1.0    -1.0
Reserved                0.0    0.0              0.0         0.0     0.0

aa_r aa_r_dy aa_dy_p aa_r_ad aa_r_hpc fluentall fluent fluent_nox
Total         18.0    25.0   128.0    10.0    272.0      47.0   47.0       50.0
Reserved       0.0     0.0     0.0     0.0      0.0       0.0    0.0        0.0

gambit geom_trans tgrid fluent_par
Total           50.0       50.0  50.0      193.0
Reserved         0.0        0.0   0.0        0.0

LOAD THRESHOLD USED FOR SCHEDULING:
r15s   r1m  r15m   ut      pg    io   ls    it    tmp    swp    mem
loadSched   -     -     -     -       -     -    -     -     -      -      -
loadStop    -     -     -     -       -     -    -     -     -      -      -

root maxroot processes clockskew netcard iptotal   cpuhz cachesize
loadSched     -       -         -         -       -       -       -         -
loadStop      -       -         -         -       -       -       -         -

diskvolume processesroot    ipmi powerconsumption ambienttemp cputemp
loadSched        -             -       -                -           -       -
loadStop         -             -       -                -           -       -

5. lsload Displays the current state of the host:

STATUS	DESCRIPTION
ok	Host is available to accept and run batch jobs and remote tasks.
-ok	LIM is running but RES is unreachable.
busy	Does not affect batch jobs, only used for remote task placement (i.e., lsrun). The value of a load index exceeded a threshold (configured in lsf.cluster.cluster_name, displayed by lshosts -l). Indices that exceed thresholds are identified with an asterisk (*).
lockW	Does not affect batch jobs, only used for remote task placement (i.e., lsrun). Host is locked by a run window (configured in lsf.cluster.cluster_name, displayed by lshosts -l).
lockU	Will not accept new batch jobs or remote tasks. An LSF administrator or root explicitly locked the host using lsadmin limlock, or an exclusive batch job (bsub -x) is running on the host. Running jobs are not affected. Use lsadmin limunlock to unlock LIM on the local host.
unavail	Host is down, or LIM is unavailable.
unlicensed	The host does not have a valid license.

6. References:

1. Platform - Working with hosts

killing all the processes belonging to a single user

IF you need to kill all the processes belonging to a user, you may want to consider this command which

# pkill -u user

Alternatively, you can log on as the user whom you wish to eliminate his/her jobs, you can use the command. Remember to logon as the person and not as root or you will kill your processes

$ kill -9 -l

Unable to boot HP Elitebook 2730p with USB CD-ROM

If you are using old HP Elitebook 2730p and after atttaching a USB-powered DVD-ROM, but somehow the BIOS is not able to recognize the USB DVD-ROM, first thing first, go

Step 1: Go to the HP Elitebook 2730p Drivers & Software

Step 2: Download the ROMPaq for HP Notebook System BIOS (68POU) - FreeDOS Bootable Media (International). Apparently the original BIOS has some bug which cause issue in booting with USB DVD-ROM

Step 3: Use a Thumb Drive 2GB and below and insert into your PC USB Drive. Format in FAT and run the sp50060.exe. This will flash and update the BIOS.

Step 4: Boot with the USB DVD-ROM, you can install any OS..... :)

Common Administrative Commands for RHEL and CentOS 5,6,7

This Common Administrative Commands Poster from Red Hat for RHEL and CentOS 5,6,7  is something l really appreciate as a system administrator. Read it for yourself and you will see what it meant. This is done by Red Hat

1. RHEL 5 6 7 Administrative Commands Cheatsheet

How to do setup auto-support for NetApp DataOnTap

This is taken from Data ONTAP 8.1 System Administration Guide for Cluster-Mode Guide Page 142. See attached for the document How to setup AutoSupport (pdf)