Veritas NetBackup™ Commands Reference Guide

Last Published:
Product(s): NetBackup (8.1.2)
  1. Introduction
    1.  
      About NetBackup commands
    2.  
      Navigating multiple menu levels
    3.  
      NetBackup command conventions
    4.  
      NetBackup Media Manager command notes
    5.  
      IPV6 updates
    6.  
      Removal of nbexecute command
  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.  
      configurePorts
    85.  
      configureTPCerts
    86.  
      create_nbdb
    87.  
      csconfig cldinstance
    88.  
      csconfig cldprovider
    89.  
      csconfig meter
    90.  
      csconfig throttle
    91.  
      duplicatetrace
    92.  
      importtrace
    93.  
      jbpSA
    94.  
      jnbSA
    95.  
      ltid
    96.  
      manageClientCerts
    97.  
      mklogdir
    98.  
      nbauditreport
    99.  
      nbcatsync
    100.  
      NBCC
    101.  
      NBCCR
    102.  
      nbcertcmd
    103.  
      nbcertupdater
    104.  
      nbcldutil
    105.  
      nbcloudrestore
    106.  
      nbcomponentupdate
    107.  
      nbcplogs
    108.  
      nbdb_admin
    109.  
      nbdb_backup
    110.  
      nbdb_move
    111.  
      nbdb_ping
    112.  
      nbdb_restore
    113.  
      nbdb_unload
    114.  
      nbdbms_start_server
    115.  
      nbdbms_start_stop
    116.  
      nbdc
    117.  
      nbdecommission
    118.  
      nbdelete
    119.  
      nbdeployutil
    120.  
      nbdevconfig
    121.  
      nbdevquery
    122.  
      nbdiscover
    123.  
      nbdna
    124.  
      nbemm
    125.  
      nbemmcmd
    126.  
      nbfindfile
    127.  
      nbfirescan
    128.  
      nbftadm
    129.  
      nbftconfig
    130.  
      nbgetconfig
    131.  
      nbhba
    132.  
      nbholdutil
    133.  
      nbhostidentity
    134.  
      nbhostmgmt
    135.  
      nbhypervtool
    136.  
      nbinstallcmd
    137.  
      nbjm
    138.  
      nbkmsutil
    139.  
      nboraadm
    140.  
      nborair
    141.  
      nbpem
    142.  
      nbpemreq
    143.  
      nbperfchk
    144.  
      nbplupgrade
    145.  
      nbrb
    146.  
      nbrbutil
    147.  
      nbregopsc
    148.  
      nbreplicate
    149.  
      nbrepo
    150.  
      nbrestorevm
    151.  
      nbseccmd
    152.  
      nbsetconfig
    153.  
      nbsnapimport
    154.  
      nbsnapreplicate
    155.  
      nbsqladm
    156.  
      nbstl
    157.  
      nbstlutil
    158.  
      nbstop
    159.  
      nbsu
    160.  
      nbsvrgrp
    161.  
      resilient_clients
    162.  
      restoretrace
    163.  
      stopltid
    164.  
      tl4d
    165.  
      tl8d
    166.  
      tl8cd
    167.  
      tldd
    168.  
      tldcd
    169.  
      tlhd
    170.  
      tlhcd
    171.  
      tlmd
    172.  
      tpautoconf
    173.  
      tpclean
    174.  
      tpconfig
    175.  
      tpext
    176.  
      tpreq
    177.  
      tpunmount
    178.  
      verifytrace
    179.  
      vltadm
    180.  
      vltcontainers
    181.  
      vlteject
    182.  
      vltinject
    183.  
      vltoffsitemedia
    184.  
      vltopmenu
    185.  
      vltrun
    186.  
      vmadd
    187.  
      vmchange
    188.  
      vmcheckxxx
    189.  
      vmd
    190.  
      vmdelete
    191.  
      vmoprcmd
    192.  
      vmphyinv
    193.  
      vmpool
    194.  
      vmquery
    195.  
      vmrule
    196.  
      vmupdate
    197.  
      vnetd
    198.  
      vssat
    199.  
      vwcp_manage
    200.  
      vxlogcfg
    201.  
      vxlogmgr
    202.  
      vxlogview
    203.  
      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.