Backup failed with error code 2009

Issue

All media managers services failed to start after rebuilding sg drivers

Error

Error nbjm (pid=27800) NBU status: 2009, EMM status: All compatible drive paths are down, but media is available

Failed to get status code information (2009)

Solution

1. Back up the existing configuration files:

# cp /kernel/drv/st.conf /kernel/drv/st.conf.old

# mv /kernel/drv/sg.conf /kernel/drv/sg.conf.old

# cp /etc/devlink.tab /etc/devlink.tab.old

2. Remove the existing SCSI targets and LUNs from the /kernel/drv/st.conf file:

(Take note of how many targets and luns there are)

name="st" class="scsi"

target=0 lun=0

Make sure to remove all of them, or duplicates will be added when the configuration is re-run.

3. Remove the targets and LUNs from the /etc/devlink.tab. This is usually near the end of the file. They look like this:

# begin SCSA Generic devlinks file - creates nodes in /dev/sg

type=ddi_pseudo;name=sg;addr=0,0; sg/cN0t0l0

type=ddi_pseudo;name=sg;addr=1,0; sg/cN0t1l0

type=ddi_pseudo;name=sg;addr=2,0; sg/cN0t2l0

type=ddi_pseudo;name=sg;addr=3,0; sg/cN0t3l0

type=ddi_pseudo;name=sg;addr=4,0; sg/cN0t4l0

type=ddi_pseudo;name=sg;addr=5,0; sg/cN0t5l0

type=ddi_pseudo;name=sg;addr=6,0; sg/cN0t6l0

type=ddi_pseudo;name=sg;addr=0,1; sg/cN0t0l1

type=ddi_pseudo;name=sg;addr=1,1; sg/cN0t1l1

type=ddi_pseudo;name=sg;addr=2,1; sg/cN0t2l1

type=ddi_pseudo;name=sg;addr=3,1; sg/cN0t3l1

type=ddi_pseudo;name=sg;addr=4,1; sg/cN0t4l1

type=ddi_pseudo;name=sg;addr=5,1; sg/cN0t5l1

type=ddi_pseudo;name=sg;addr=6,1; sg/cN0t6l1

# end SCSA devlinks

4. You must change to the following directory to run the configuration commands. Type them exactly as shown or the configuration will be created at the wrong location:

# cd /usr/openv/volmgr/bin/driver

5. Use the following command to create the new configuration files. Use the numbers you noted from the original st.conf for max_targets and max_luns:

# ../sg.build all -mt <max_targets> -ml <max_luns>

6. Append the generated st.conf to the OS configuration file:

# cat st.conf >> /kernel/drv/st.conf

7. Unload the sg driver:

# rem_drv sg

8. Use the following script to re-create the /kernel/drv/sg.conf and append the /etc/devlink.tab file. This will also reload the sg driver when complete:

# ./sg.install

9. Verify that all devices have been installed properly:

# /usr/openv/volmgr/bin/sgscan all conf -v