Professional Web Applications Themes

Onbar and Veritas Netbackup? - Informix

Hi, we use Netbackup version 4.5 with IDS 9.4.UC1 version on Sun OS 5.8. In the bar_act.log, we very frequently see the following warning: 2003-08-07 04:34:18 16762 16760 Warning: BAR_TIMEOUT Storage Manager Progress may be stalled. Does anybody know what the above means...How could this be recitified...Becuase of the above out level-1 and level-0 backups are taking longer than it should be... Thanks Venaktesh sending to informix-list...

  1. #1

    Default RE: Onbar and Veritas Netbackup?


    Hi,
    we use Netbackup version 4.5 with IDS 9.4.UC1 version on Sun OS 5.8.

    In the bar_act.log, we very frequently see the following warning:

    2003-08-07 04:34:18 16762 16760 Warning: BAR_TIMEOUT Storage Manager Progress
    may be stalled.

    Does anybody know what the above means...How could this be recitified...Becuase of the above out level-1 and level-0 backups are taking longer than it should be...

    Thanks
    Venaktesh


    sending to informix-list
    Venkatesh Konnur Guest

  2. #2

    Default Re: Onbar and Veritas Netbackup?






    Hi

    The BAR_TIMEOUT (hardcoded to be 600 seconds) is used to set the maximum
    time onbar will wait for a XBSA API call.

    First a flag is set to indicate that a XBSA api call is about to take
    place.
    Then a XBSA api call is invoked.
    Then the flag is clear to indicate that the XBSA api call has completed.

    In the meantime, the onbar signal handle has been setup to handle SIGALRM
    (alarm clock). Inside that SIGALRM handler, if a XBSA api call is in
    progress and the BAR_TIMEOUT has been exceeded, then the warning is given.
    At this point, the timeout value is effectively increased and onbar
    continue to wait for the completion of the XBSA api call.

    thanks. davis.



    briceavilahotmai
    l.com (Brice To: [email]informix-listiiug.org[/email]
    Avila) cc:
    Sent by: Subject: Re: Onbar and Veritas Netbackup?
    owner-informix-li
    [email]stiiug.org[/email]


    08/08/2003 07:18
    AM
    Please respond to
    briceavila





    I don't believe that BAR_TIMEOUT is causing the performance problem,
    but the other way around: a performance problem is causing the
    BAR_TIMEOUT warning.

    I'd like to learn more about this parameter also. I understand that
    this is hard-coded to 600 seconds (10 minutes). There is an Informix
    bug 115147 that stopped a backup if a large dbspace reached 10 minutes
    before being completely scanned/backed-up, and perhaps the fix is to
    change this to a warning? This bug I believe is fixed in:

    8.31.UC1
    8.40.UC1
    9.30.UC1

    Anyone know more about BAR_TIMEOUT? Is it configurable? If so, how?
    TIA.

    Brice Avila
    Minneapolis, Minnesota

    "Venkatesh Konnur" <VNKONNURkcc.usda.gov> wrote in message
    news:<bgtj7k$1ln$1terabinaries.xmission.com>...
    > Hi,
    > we use Netbackup version 4.5 with IDS 9.4.UC1 version on Sun OS 5.8.
    >
    > In the bar_act.log, we very frequently see the following warning:
    >
    > 2003-08-07 04:34:18 16762 16760 Warning: BAR_TIMEOUT Storage Manager
    Progress
    > may be stalled.
    >
    > Does anybody know what the above means...How could this be
    recitified...Becuase of the above out level-1 and level-0 backups are
    taking longer than it should be...
    >
    > Thanks
    > Venaktesh
    >
    >
    > sending to informix-list

    sending to informix-list
    Davis Kwong Guest

Similar Threads

  1. Replies: 1
    Last Post: July 9th, 03:48 PM
  2. Veritas Netbackup and IDS 7.31.UD4
    By mikevarney in forum Informix
    Replies: 0
    Last Post: November 5th, 06:50 PM
  3. Replies: 0
    Last Post: August 28th, 08:11 PM
  4. StorEdge Enterprise Backup vs Veritas NetBackup
    By Julian Regel in forum Linux / Unix Administration
    Replies: 3
    Last Post: July 13th, 11:56 PM
  5. Netbackup, and pending requests
    By Daniel in forum Sun Solaris
    Replies: 2
    Last Post: June 26th, 10:32 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139