SAN drives getting down in netbackup

Hi Team,

We have Netbackup 8.1 on master. Currently the tape drives are getting down on one SAN media server and which is a shared drive. Need your help to resolve.

How we can identify if the drives are misconfigured and how to solve them back.

/usr/openv/volmgr/bin/vmoprcmd -d -devconfig -l -h ctooptmwdb1un2 -autoconfig -t
TPAC60 IBM 03592E08 47A9 0000078DCAB0 -1 -1 -1 -1 /dev/nst5 - -
TPAC60 IBM 03592E08 47A9 0000078DCAFE -1 -1 -1 -1 /dev/nst2 - -
TPAC60 IBM 03592E08 47A9 0000078DCAB8 -1 -1 -1 -1 /dev/nst7 - -
TPAC60 IBM 03592E08 47A9 0000078DCAF3 -1 -1 -1 -1 /dev/nst6 - -
TPAC60 IBM 03592E08 47A9 0000078DCB3C -1 -1 -1 -1 /dev/nst4 - -
TPAC60 IBM 03592E08 47A9 0000078DCB0C -1 -1 -1 -1 /dev/nst3 - -
TPAC60 IBM 03592E08 47A9 0000078DCB0A -1 -1 -1 -1 /dev/nst1 - -
TPAC60 IBM 03592E08 47A9 0000078DCAF5 -1 -1 -1 -1 /dev/nst0 - -

# /usr/openv/volmgr/bin/vmoprcmd -d ds -h ctooptmwdb1un2 -devconfig
TPC_DEV65 DRIVE OH1SF2C1R3 16 8 0 33 - -1 -1 -1 -1 ctooptmwdb1un2 /dev/nst6 0000078DCAF3 - 32907 2 -1 -1 -1 -1 0 3720 0 0 - 0 i0000:40/0000:40:02.2/0000:47:00.0/host7/rport-7:0-4/target7:0:2/7:0:2:0 - IBM~~~~~03592E08~~~~~~~~47A9 - 4 0 0
TPC_DEV65 DRIVE OH1SF2C1R4 16 8 0 34 - -1 -1 -1 -1 ctooptmwdb1un2 /dev/nst5 0000078DCB0C - 128 1 -1 -1 -1 -1 0 2798 0 0 NEEDS~CLEANING 1 i0000:40/0000:40:02.2/0000:47:00.0/host7/rport-7:0-3/target7:0:1/7:0:1:0 - IBM~~~~~03592E08~~~~~~~~47A9 - 5 0 0
TPC_DEV65 DRIVE OH1SF2C1R2 16 8 0 32 - -1 -1 -1 -1 ctooptmwdb1un2 /dev/nst4 0000078DCAB0 - 128 1 -1 -1 -1 -1 0 1259 0 0 - 0 i0000:40/0000:40:02.2/0000:47:00.0/host7/rport-7:0-2/target7:0:0/7:0:0:0 - IBM~~~~~03592E08~~~~~~~~47A9 - 6 0 0
TPC_DEV65 DRIVE OH1SF2C3R3 16 8 0 41 - -1 -1 -1 -1 ctooptmwdb1un2 /dev/nst3 0000078DCAF5 - 128 1 -1 -1 -1 -1 0 3595 0 0 - 0 i0000:00/0000:00:03.0/0000:04:00.0/host5/rport-5:0-5/target5:0:3/5:0:3:0 - IBM~~~~~03592E08~~~~~~~~47A9 - 11 0 0
TPC_DEV65 DRIVE OH1SF2C3R1 16 8 0 39 - -1 -1 -1 -1 ctooptmwdb1un2 /dev/nst2 0000078DCB0A - 128 1 -1 -1 -1 -1 0 3504 0 0 - 0 i0000:00/0000:00:03.0/0000:04:00.0/host5/rport-5:0-4/target5:0:2/5:0:2:0 - IBM~~~~~03592E08~~~~~~~~47A9 - 12 0 0
TPC_DEV65 DRIVE OH1SF2C3R4 16 8 0 42 - -1 -1 -1 -1 ctooptmwdb1un2 /dev/nst1 0000078DCB3C - 128 1 -1 -1 -1 -1 0 2257 0 0 NEEDS~CLEANING 1 i0000:00/0000:00:03.0/0000:04:00.0/host5/rport-5:0-3/target5:0:1/5:0:1:0 - IBM~~~~~03592E08~~~~~~~~47A9 - 13 0 0
TPC_DEV65 DRIVE OH1SF2C3R2 16 8 0 40 - -1 -1 -1 -1 ctooptmwdb1un2 /dev/nst0 0000078DCAFE - 128 1 -1 -1 -1 -1 0 2255 0 0 NEEDS~CLEANING 1 i0000:00/0000:00:03.0/0000:04:00.0/host5/rport-5:0-2/target5:0:0/5:0:0:0 - IBM~~~~~03592E08~~~~~~~~47A9 - 14 0 0
TPC_DEV65 DRIVE OH1SF2C1R1 16 8 0 46 - -1 -1 -1 -1 ctooptmwdb1un2 /dev/nst7 0000078DCAB8 - 32907 2 -1 -1 -1 -1 0 3565 0 0 - 0 i0000:40/0000:40:02.2/0000:47:00.0/host7/rport-7:0-5/target7:0:3/7:0:3:0 - IBM~~~~~03592E08~~~~~~~~47A9 - 15 0 0
TPC_DEV65 ROBOT ROBOT0 8 0 ctooptmwdb1un2 - - -1 -1 -1 -1 0000078AA6080402 crebm1300 crebm1300 IBM~~~~~03584L22~~~~~~~~1411 0 1 0

Linux

Marianne
7 years ago
Without knowing what the rest of your environment looks like and how your drive names were selected/configured, probably safest to manually edit drive properties for each incorrect drive and specify correct path.
There are only 6 to edit.
Restart NBU on the media server once completed.

11 Replies

Marianne
Level 6
7 years ago
Have you tried to clean tape drives that show "NEEDS~CLEANING" message?

Best to have cleaning cartridges in None pool defined as hcart-CLN (matching device config) to enable automatic cleaning.

For further device troubleshooting, add VERBOSE entry to /usr/openv/volmgr/vm.conf on all media servers, followed by NBU restart.
Device-related errors (such as reason for drives being DOWN'ed) will be logged in /var/log/messages on the media server where the drive was DOWN'ed.
Marianne
Level 6
7 years ago
Two old, but still relevant TNs to set up automatic tape cleaning:

https://www.veritas.com/support/en_US/article.TECH164472

https://www.veritas.com/support/en_US/article.TECH37409
- Mehul_Vyas
  Level 4
  7 years ago
  Hello Marianne,
  Thanks for your info !!
  However, if we look the vmoprcmd with -autoconfig output and vmoprcmd with -devconfig output, the path for tape drives are mis-matched.
  Higlighted one drive in Bold.
  *vmoprcmd with -autoconfig output for drive 0000078DCAB0 shows path = /dev/nst5
  *vmoprcmd with -devconfig output for drive 0000078DCAB0 shows path = /dev/nst4
  Do we need to reconfigure the drive in order to correct the path?
  /usr/openv/volmgr/bin/vmoprcmd -d -devconfig -l -h ctooptmwdb1un2 -autoconfig -t
  TPAC60 IBM 03592E08 47A9 0000078DCAB0 -1 -1 -1 -1 /dev/nst5 - -
  TPAC60 IBM 03592E08 47A9 0000078DCAFE -1 -1 -1 -1 /dev/nst2 - -
  TPAC60 IBM 03592E08 47A9 0000078DCAB8 -1 -1 -1 -1 /dev/nst7 - -
  TPAC60 IBM 03592E08 47A9 0000078DCAF3 -1 -1 -1 -1 /dev/nst6 - -
  TPAC60 IBM 03592E08 47A9 0000078DCB3C -1 -1 -1 -1 /dev/nst4 - -
  TPAC60 IBM 03592E08 47A9 0000078DCB0C -1 -1 -1 -1 /dev/nst3 - -
  TPAC60 IBM 03592E08 47A9 0000078DCB0A -1 -1 -1 -1 /dev/nst1 - -
  TPAC60 IBM 03592E08 47A9 0000078DCAF5 -1 -1 -1 -1 /dev/nst0 - -
  
  # /usr/openv/volmgr/bin/vmoprcmd -d ds -h ctooptmwdb1un2 -devconfig
  TPC_DEV65 DRIVE OH1SF2C1R3 16 8 0 33 - -1 -1 -1 -1 ctooptmwdb1un2 /dev/nst6 0000078DCAF3 - 32907 2 -1 -1 -1 -1 0 3720 0 0 - 0 i0000:40/0000:40:02.2/0000:47:00.0/host7/rport-7:0-4/target7:0:2/7:0:2:0 - IBM~~~~~03592E08~~~~~~~~47A9 - 4 0 0
  TPC_DEV65 DRIVE OH1SF2C1R4 16 8 0 34 - -1 -1 -1 -1 ctooptmwdb1un2 /dev/nst5 0000078DCB0C - 128 1 -1 -1 -1 -1 0 2798 0 0 NEEDS~CLEANING 1 i0000:40/0000:40:02.2/0000:47:00.0/host7/rport-7:0-3/target7:0:1/7:0:1:0 - IBM~~~~~03592E08~~~~~~~~47A9 - 5 0 0
  TPC_DEV65 DRIVE OH1SF2C1R2 16 8 0 32 - -1 -1 -1 -1 ctooptmwdb1un2 /dev/nst4 0000078DCAB0 - 128 1 -1 -1 -1 -1 0 1259 0 0 - 0 i0000:40/0000:40:02.2/0000:47:00.0/host7/rport-7:0-2/target7:0:0/7:0:0:0 - IBM~~~~~03592E08~~~~~~~~47A9 - 6 0 0
  TPC_DEV65 DRIVE OH1SF2C3R3 16 8 0 41 - -1 -1 -1 -1 ctooptmwdb1un2 /dev/nst3 0000078DCAF5 - 128 1 -1 -1 -1 -1 0 3595 0 0 - 0 i0000:00/0000:00:03.0/0000:04:00.0/host5/rport-5:0-5/target5:0:3/5:0:3:0 - IBM~~~~~03592E08~~~~~~~~47A9 - 11 0 0
  TPC_DEV65 DRIVE OH1SF2C3R1 16 8 0 39 - -1 -1 -1 -1 ctooptmwdb1un2 /dev/nst2 0000078DCB0A - 128 1 -1 -1 -1 -1 0 3504 0 0 - 0 i0000:00/0000:00:03.0/0000:04:00.0/host5/rport-5:0-4/target5:0:2/5:0:2:0 - IBM~~~~~03592E08~~~~~~~~47A9 - 12 0 0
  TPC_DEV65 DRIVE OH1SF2C3R4 16 8 0 42 - -1 -1 -1 -1 ctooptmwdb1un2 /dev/nst1 0000078DCB3C - 128 1 -1 -1 -1 -1 0 2257 0 0 NEEDS~CLEANING 1 i0000:00/0000:00:03.0/0000:04:00.0/host5/rport-5:0-3/target5:0:1/5:0:1:0 - IBM~~~~~03592E08~~~~~~~~47A9 - 13 0 0
  TPC_DEV65 DRIVE OH1SF2C3R2 16 8 0 40 - -1 -1 -1 -1 ctooptmwdb1un2 /dev/nst0 0000078DCAFE - 128 1 -1 -1 -1 -1 0 2255 0 0 NEEDS~CLEANING 1 i0000:00/0000:00:03.0/0000:04:00.0/host5/rport-5:0-2/target5:0:0/5:0:0:0 - IBM~~~~~03592E08~~~~~~~~47A9 - 14 0 0
  TPC_DEV65 DRIVE OH1SF2C1R1 16 8 0 46 - -1 -1 -1 -1 ctooptmwdb1un2 /dev/nst7 0000078DCAB8 - 32907 2 -1 -1 -1 -1 0 3565 0 0 - 0 i0000:40/0000:40:02.2/0000:47:00.0/host7/rport-7:0-5/target7:0:3/7:0:3:0 - IBM~~~~~03592E08~~~~~~~~47A9 - 15 0 0
  TPC_DEV65 ROBOT ROBOT0 8 0 ctooptmwdb1un2 - - -1 -1 -1 -1 0000078AA6080402 crebm1300 crebm1300 IBM~~~~~03584L22~~~~~~~~1411 0 1 0
  - Marianne
    Level 6
    7 years ago
    Could you please show us output of
    vmoprcmd -h ctooptmwdb1un2 -devconfig -l
    Seeing device config in more readable format will help to get a better view of NBU config.
    
    You seem to be combining command options that don't really belong together...
    
    tpautoconf -t shows actual (correct) path for tape drive on the media server.
    vmoprcmd -devconfig shows NBU config.
    
    It seems that NBU config for this media server is incorrect.
    Best to delete all devices for this media server and rerun device config.
    vmoprcmd -h <media-server-name> -timeout 900 -autoconfig -a

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SAN drives getting down in netbackup

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