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Graph disk usage% y-axis > 100%

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  • CeeEss
    Senior Member
    Zabbix Certified Specialist
    • Nov 2007
    • 103

    #1

    Graph disk usage% y-axis > 100%

    Hi, all

    Zabbix Server v1.8.10

    A mixed disk usage graph (used/total bytes on the left y-axis and disk pused on the right side y-axis) for one of our servers' filesystems displays pused > 100%, 250% to be exact. At a certain point in time last year, it jumps to displaying 250% on the y-axis. Prior to this, it displays 100%. I've located the time period (within 1 hour) where it first occurs but can find nothing unusual in the trend data feeding the graph:

    Disk Usage, %

    mysql> select * from trends where itemid = 22774 and clock >= 1319802000 and clock <= 1319812800;
    +--------+------------+-----+-----------+-----------+-----------+
    | itemid | clock | num | value_min | value_avg | value_max |
    +--------+------------+-----+-----------+-----------+-----------+
    | 22774 | 1319803200 | 120 | 80.1842 | 80.6810 | 80.7988 |
    | 22774 | 1319806800 | 120 | 80.7988 | 80.8130 | 80.8230 |
    | 22774 | 1319810400 | 120 | 80.8230 | 80.8331 | 80.8477 |
    +--------+------------+-----+-----------+-----------+-----------+

    Disk Usage, bytes:

    mysql> select * from trends_uint where itemid = 22776 and clock >= 1319802000 and clock <= 1319812800;
    +--------+------------+-----+---------------+---------------+---------------+
    | itemid | clock | num | value_min | value_avg | value_max |
    +--------+------------+-----+---------------+---------------+---------------+
    | 22776 | 1319803200 | 120 | 8017845108736 | 8067456583446 | 8079206060032 |
    | 22776 | 1319806800 | 120 | 8079206060032 | 8080628819907 | 8081619902464 |
    | 22776 | 1319810400 | 120 | 8081622372352 | 8082634332981 | 8084095467520 |
    +--------+------------+-----+---------------+---------------+---------------+

    Disk Total, bytes:

    mysql> select * from trends_uint where itemid = 22775 and clock >= 1319802000 and clock <= 1319812800;
    +--------+------------+-----+---------------+---------------+---------------+
    | itemid | clock | num | value_min | value_avg | value_max |
    +--------+------------+-----+---------------+---------------+---------------+
    | 22775 | 1319803200 | 1 | 9999162015744 | 9999162015744 | 9999162015744 |
    | 22775 | 1319806800 | 1 | 9999162015744 | 9999162015744 | 9999162015744 |
    | 22775 | 1319810400 | 1 | 9999162015744 | 9999162015744 | 9999162015744 |
    +--------+------------+-----+---------------+---------------+---------------+

    Graphs don't resize legibly enough to include, so i'll leave them out for now, but at time 1319803200, the graph shows 100%, at 1319812800 (1 hour later) it shows 250%.

    thanks
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