Veritas NetBackup™ Commands Reference Guide

Last Published:
Product(s): NetBackup (8.2)
  1. Introduction
    1.  
      About NetBackup commands
    2.  
      Navigating multiple menu levels
    3.  
      NetBackup command conventions
    4.  
      NetBackup Media Manager command notes
    5.  
      IPV6 updates
  2. Appendix A. NetBackup Commands
    1.  
      acsd
    2.  
      add_media_server_on_clients
    3.  
      backupdbtrace
    4.  
      backuptrace
    5.  
      bmrc
    6.  
      bmrconfig
    7.  
      bmrepadm
    8.  
      bmrprep
    9.  
      bmrs
    10.  
      bmrsrtadm
    11.  
      bp
    12.  
      bparchive
    13.  
      bpbackup
    14.  
      bpbackupdb
    15.  
      bpcatarc
    16.  
      bpcatlist
    17.  
      bpcatres
    18.  
      bpcatrm
    19.  
      bpcd
    20.  
      bpchangeprimary
    21.  
      bpclient
    22.  
      bpclimagelist
    23.  
      bpclntcmd
    24.  
      bpclusterutil
    25.  
      bpcompatd
    26.  
      bpconfig
    27.  
      bpdbjobs
    28.  
      bpdbm
    29.  
      bpdgclone
    30.  
      bpdown
    31.  
      bpduplicate
    32.  
      bperror
    33.  
      bpexpdate
    34.  
      bpfis
    35.  
      bpflist
    36.  
      bpgetconfig
    37.  
      bpgetdebuglog
    38.  
      bpimage
    39.  
      bpimagelist
    40.  
      bpimmedia
    41.  
      bpimport
    42.  
      bpinst
    43.  
      bpkeyfile
    44.  
      bpkeyutil
    45.  
      bplabel
    46.  
      bplist
    47.  
      bpmedia
    48.  
      bpmedialist
    49.  
      bpminlicense
    50.  
      bpnbat
    51.  
      bpnbaz
    52.  
      bppficorr
    53.  
      bpplcatdrinfo
    54.  
      bpplclients
    55.  
      bppldelete
    56.  
      bpplinclude
    57.  
      bpplinfo
    58.  
      bppllist
    59.  
      bpplsched
    60.  
      bpplschedrep
    61.  
      bpplschedwin
    62.  
      bppolicynew
    63.  
      bpps
    64.  
      bprd
    65.  
      bprecover
    66.  
      bprestore
    67.  
      bpretlevel
    68.  
      bpschedule
    69.  
      bpschedulerep
    70.  
      bpsetconfig
    71.  
      bpstsinfo
    72.  
      bpstuadd
    73.  
      bpstudel
    74.  
      bpstulist
    75.  
      bpsturep
    76.  
      bptestbpcd
    77.  
      bptestnetconn
    78.  
      bptpcinfo
    79.  
      bpup
    80.  
      bpverify
    81.  
      cat_convert
    82.  
      cat_export
    83.  
      cat_import
    84.  
      configureCertsForPlugins
    85.  
      configureMQ
    86.  
      configurePorts
    87.  
      configureWebServerCerts
    88.  
      create_nbdb
    89.  
      csconfig cldinstance
    90.  
      csconfig cldprovider
    91.  
      csconfig meter
    92.  
      csconfig throttle
    93.  
      csconfig reinitialize
    94.  
      duplicatetrace
    95.  
      importtrace
    96.  
      jbpSA
    97.  
      jnbSA
    98.  
      ltid
    99.  
      manageClientCerts
    100.  
      mklogdir
    101.  
      nbauditreport
    102.  
      nbcatsync
    103.  
      NBCC
    104.  
      NBCCR
    105.  
      nbcertcmd
    106.  
      nbcertupdater
    107.  
      nbcldutil
    108.  
      nbcloudrestore
    109.  
      nbcomponentupdate
    110.  
      nbcplogs
    111.  
      nbdb_admin
    112.  
      nbdb_backup
    113.  
      nbdb_move
    114.  
      nbdb_ping
    115.  
      nbdb_restore
    116.  
      nbdb_unload
    117.  
      nbdbms_start_server
    118.  
      nbdbms_start_stop
    119.  
      nbdc
    120.  
      nbdecommission
    121.  
      nbdelete
    122.  
      nbdeployutil
    123.  
      nbdevconfig
    124.  
      nbdevquery
    125.  
      nbdiscover
    126.  
      nbdna
    127.  
      nbemm
    128.  
      nbemmcmd
    129.  
      nbfindfile
    130.  
      nbfirescan
    131.  
      nbftadm
    132.  
      nbftconfig
    133.  
      nbgetconfig
    134.  
      nbhba
    135.  
      nbholdutil
    136.  
      nbhostidentity
    137.  
      nbhostmgmt
    138.  
      nbhypervtool
    139.  
      nbimageshare
    140.  
      nbinstallcmd
    141.  
      nbjm
    142.  
      nbkmsutil
    143.  
      nboraadm
    144.  
      nborair
    145.  
      nbpem
    146.  
      nbpemreq
    147.  
      nbperfchk
    148.  
      nbplupgrade
    149.  
      nbrb
    150.  
      nbrbutil
    151.  
      nbregopsc
    152.  
      nbreplicate
    153.  
      nbrepo
    154.  
      nbrestorevm
    155.  
      nbseccmd
    156.  
      nbsetconfig
    157.  
      nbsnapimport
    158.  
      nbsnapreplicate
    159.  
      nbsqladm
    160.  
      nbstl
    161.  
      nbstlutil
    162.  
      nbstop
    163.  
      nbsu
    164.  
      nbsvrgrp
    165.  
      resilient_clients
    166.  
      restoretrace
    167.  
      stopltid
    168.  
      tl4d
    169.  
      tl8d
    170.  
      tl8cd
    171.  
      tldd
    172.  
      tldcd
    173.  
      tlhd
    174.  
      tlhcd
    175.  
      tlmd
    176.  
      tpautoconf
    177.  
      tpclean
    178.  
      tpconfig
    179.  
      tpext
    180.  
      tpreq
    181.  
      tpunmount
    182.  
      verifytrace
    183.  
      vltadm
    184.  
      vltcontainers
    185.  
      vlteject
    186.  
      vltinject
    187.  
      vltoffsitemedia
    188.  
      vltopmenu
    189.  
      vltrun
    190.  
      vmadd
    191.  
      vmchange
    192.  
      vmcheckxxx
    193.  
      vmd
    194.  
      vmdelete
    195.  
      vmoprcmd
    196.  
      vmphyinv
    197.  
      vmpool
    198.  
      vmquery
    199.  
      vmrule
    200.  
      vmupdate
    201.  
      vnetd
    202.  
      vssat
    203.  
      vwcp_manage
    204.  
      vxlogcfg
    205.  
      vxlogmgr
    206.  
      vxlogview
    207.  
      W2KOption

Name

nbperfchk — measures a disk array's read and write speeds.

SYNOPSIS

nbperfchk -i inputpath -o outputpath [-s filesize] [-syncend] [-bs buffersize]

On UNIX systems, the directory path to this command is /usr/openv/netbackup/bin/support/

On Windows systems, the directory path to this command is install_path\NetBackup\bin\support\

DESCRIPTION

The nbperfchk command measures the read speed and write speed of a disk array. You can use this command to test the read speed and the write speed of the disks that host deduplicated data. For example, you can measure the speeds of the disks that host deduplicated data.

In a NetBackup media server deduplication pool (MSDP), use this command to measure the speed of the disks attached to the media server. The media server can be running any operating system that Veritas supports for media servers and MSDPs.

Note:

Veritas recommends that you work with a Veritas technical support staff member when you run this command and interpret its results. Veritas recommends a minimum disk performance level of 130 MB/sec for deduplicated read and write operations.

The nbperfchk utility enables you to write a test file to a disk, read back that test file, and observe the read speeds attained during the read operation. You can use the results from nbperfchk to make sure that the ReadBufferSize parameter is set appropriately in your backup environment. The ReadBufferSize parameter resides in the [CRDataStore] section of the contentrouter.cfg file. You can use this command as follows:

  • Use the following command to write data to the disks:

    nbperfchk -i inputpath -o outputpath -s filesize -syncend

  • Use the following command to read data from the disks:

    nbperfchk -i inputpath -o outputpath -bs buffersize

OPTIONS

-i inputpath

For inputpath, specify the full path to an input file. The nbperfchk command reads this file and generates information about the read speed when this file is read to disk.

For example, you can specify the following to read in a file that contains all zero characters (0x00) from the /dev/zero:

-o outputpath

For outputpath, specify the full path to an output file. The nbperfchk command creates this file.

For example, on writes, specify the path to the output file that you want to create. On reads, specify -o NULL to discard all the output as it is generated.

-s filesize

For filesize, specify a file size that is equal to or larger than tha combined memory size of your computer plus the amount in the disk array. A file of this size ensures that the data is written to disk and not to a buffer.

-syncend

The syncend parameter flushes the buffer and writes all data to disk.

-bs buffersize

For buffersize, specify the read buffer size to use when nbperfchk runs. For example, 64k or 128k.

PROCEDURES

To analyze nbperfchk results and adjust the ReadBufferSize parameter setting

  1. Log in as the root user (UNIX) or the administrator (Windows) on the computer that hosts the content router.

    In NetBackup environments, log into the media server.

  2. Change to a test directory.
  3. Type the nbperfchk command in the following format to write a large test file to the content router:
    nbperfchk -i inputpath -o outputpath -s filesize -syncend

    For example, the following command writes a 64 GB data file that contains all zeros to the e drive:

    nbperfchk -i zero: -o e:\data1 -s 64g -syncend
    
  4. Type the nbperfchk command in the following format to read the test file and observe the read speeds in the nbperfchk output:
    nbperfchk -i inputpath -o NULL -bs buffersize

    Example 1. To observe several read speeds, with several buffer sizes, type the following series of commands:

    nbperfchk -i e:\data1 -bs 64k -o NULL
    nbperfchk -i e:\data1 -bs 128k -o NULL
    nbperfchk -i e:\data1 -bs 256k -o NULL

    Example 2. The following nbperfchk command reads back the data in file data1 and uses a buffer size of 1024 K:

    C:\Users\administrator.mymediaserver\Desktop>nbperfchk -i e:\data1 -bs 1024k -o NULL
         195 MB @   65.3 MB/sec,      194 MB @   64.9 MB/sec
         295 MB @   49.4 MB/sec,      100 MB @   33.5 MB/sec
         403 MB @   44.8 MB/sec,      108 MB @   35.8 MB/sec
         505 MB @   42.1 MB/sec,      102 MB @   34.1 MB/sec
         599 MB @   40.0 MB/sec,       94 MB @   31.3 MB/sec
         705 MB @   39.2 MB/sec,      106 MB @   35.5 MB/sec
         821 MB @   39.2 MB/sec,      116 MB @   38.8 MB/sec
         943 MB @   39.4 MB/sec,      122 MB @   40.8 MB/sec
        1024 MB @   40.1 MB/sec

    Observe the following when you analyze the data:

    • The left two columns show the amount of data read and the average read speed.

    • The final line shows the overall read speed. This is the most important line in this output because it shows you how fast the total read occurred with the buffer size you specified.

    • The right two columns show the average read speed in the last 3 seconds of each read. Unless these numbers vary drastically from read to read, you can disregard the right two columns.

  5. Analyze your read speeds and adjust the ReadBufferSize parameter if necessary.

    Your operating system, your disk speeds, and the ReadBufferSize parameter setting all affect restore and rehydration performance.

    Veritas recommends that you type several nbperfchk commands and increase the size of the argument to the -bs parameter each time. Example 1 in step 4 shows this method. If you can enter ever-increasing arguments to the -bs parameter, you can probably increase the size of the ReadBufferSize parameter in the [CRDataStore] section of the contentrouter.cfg file.

    By default, ReadBufferSize=65536, which is 64K. Veritas testing shows that ReadBufferSize=1048576, which is 1024 X 1024, or 1M, offers good performance on most Windows systems. On most UNIX systems, Veritas testing shows that ReadBufferSize=65536 (the default) offers good performance.

    For information about how to edit NetBackup configuration files, see the NetBackup documentation.