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HDS VSP-G and VSP command device setup

Hitachi CCI can be configured to use either LAN to get data from the storages or command device (LUN/Volume).
Command device is recomended when you have many of storages to monitor (HDS recommends 40+).
LAN configuration is described in our standart storage access manual.
Document describes installation on Linux RHEL 7.3.

At first make sure that you have this settings on the storage
Comand device setup
  1. Create volume for command device on the storage (no more than 1 GB)
  2. Connect it through 2 ports (it's enough).
  3. Execute re-scan FC (or restart/reboot)
    # echo "1" > /sys/class/fc_host/host1/issue_lip
    # echo "1" > /sys/class/fc_host/host2/issue_lip
    # echo "- - -" > /sys/class/scsi_host/host2/scan
    # echo "- - -" > /sys/class/scsi_host/host1/scan
    
  4. Check
    # ls /dev/sd* | /HORCM/usr/bin/inqraid -CLI -fx
      DEVICE_FILE     PORT    SERIAL  LDEV CTG  H/M/12  SSID R:Group PRODUCT_ID
      sda             -            -     -   -       -     -       - LOGICAL VOLUME
      sdf             CL1-A    87011   900   -       -  000B 5:09-01 OPEN-V-CM
      sdg             CL2-A    87011   900   -       -  000B 5:09-01 OPEN-V-CM
    
  5. Check & edit services
    # cat /etc/services |grep horc
      horcm1          11001/tcp               # HORCM1
      horcm2          11002/tcp               # HORCM2
    
  6. create horcm2.conf file by inserting the stanzas
    # vi /etc/horcm2.conf
    
    HORCM_MON
    # ip_address service poll(10ms) timeout(10ms)
    localhost    11002   1000       3000
     
    HORCM_CMD
    # dev_name dev_name dev_name
    \\.\CMD-87011:/dev/sd*
    
    It will use /dev/sdf and /dev/sdg
    Attention: the rights of the USER(lpar2rrd) to manage these devices must be the same to run HORCM
    # ls -l /dev/ |grep sd
    brw-rw----  1 lpar2rrd disk      8,  80 Jun 14 16:35 sdf
    brw-rw----  1 lpar2rrd disk      8,  96 Jun 14 16:39 sdg
    
    It seems that it works ... But will not, after reboot, because:
    devtmpfs on /dev type devtmpfs (rw,nosuid,size=16358024k,nr_inodes=4089506,mode=755)
    
    To avoid it there must be added user (stor2rrd or lpar2rrd on the appliance) into the group "disk":
     
    # useradd -G disk lpar2rrd
    
  7. Run HORCM:
    # su - stor2rrd -c "/HORCM/usr/bin/horcmstart.sh 1 2"
    
  8. Note for the VSP GXX series and for the HDS VSP, heir ExportTools are different .
  9. HORCM can be started
    Do not forget to create user on the array management console (with encrypted password).
    The VSP user (to collect data) was added to Support Personnel Group (in the VSP) - these user rights are enough.
  10. Make sure that the Perf Monitor on the storage is Enabled
  11. Add service to autostart
    # vi /etc/systemd/system/horcmsrv.service
    
    [Unit]
    Description=HORCM Service
    After=network.target
    
    [Service]
    Type=idle
    RemainAfterExit=yes
    User=lpar2rrd
    Group=lpar2rrd
    ExecStart=/HORCM/horcmstart.sh
    ExecStop=/HORCM/horcmstart.sh
    
    [Install]
    WantedBy=multi-user.target
    
    # vi /HORCM/horcmstart.sh
    
    #!/bin/bash
    sh /HORCM/usr/bin/horcmstart.sh 1 2
    
    # vi /HORCM/horcmstop.sh
    
    #!/bin/bash
    sh /HORCM/usr/bin/horcmshutdown.sh 1 2
    
    # chmod +x /HORCM/horcmstart.sh
    # chmod +x /HORCM/horcstop.sh
    # chown lpar2rrd:lpar2rrd /HORCM/horcmstart.sh
    # chown lpar2rrd:lpar2rrd /HORCM/horcstop.sh
    
    # systemctl enable horcmsrv.service
    # systemctl daemon-reload
    # systemctl start horcmsrv
    # systemctl status horcmsrv
      horcmsrv.service - HORCM Service
      Loaded: loaded (/etc/systemd/system/horcmsrv.service; enabled; vendor preset: disabled)
      Active: active (exited) since Tue 2017-06-20 13:19:03 MSK; 1s ago
      Process: 14249 ExecStart=/HORCM/horcmstart.sh (code=exited, status=0/SUCCESS)
      Main PID: 14249 (code=exited, status=0/SUCCESS)
      CGroup: /system.slice/horcmsrv.service
               14255 horcmd_01
               14264 horcmd_02
      Jun 20 13:19:03 mon-rrd systemd[1]: Started HORCM Service.
      Jun 20 13:19:03 mon-rrd systemd[1]: Starting HORCM Service...
      Jun 20 13:19:03 mon-rrd horcmstart.sh[14249]: starting HORCM inst 1
      Jun 20 13:19:04 mon-rrd horcmstart.sh[14249]: HORCM inst 1 starts successfully.
      Jun 20 13:19:04 mon-rrd horcmstart.sh[14249]: starting HORCM inst 2
      Jun 20 13:19:04 mon-rrd horcmstart.sh[14249]: HORCM inst 2 starts successfully.
    
    If you add next instance HORCM then edit /HORCM/horcmstart.sh and /HORCM/horcmstop.sh

 

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