<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=US-ASCII"> <META NAME="Generator" CONTENT="MS Exchange Server version 6.5.7652.24"> <TITLE>check_hd (free diskspace via snmp) reporting wrong values</TITLE> </HEAD> <BODY>  I use a slightly modified (allow cheks of "/var" as well as "c:") check_hd plugin to check disk space on both windows and unix. It works fine for the most part, except for a windows machine with 2 partitions. The E: partition report is fine OK: hd e:\.* 1% full, 27.4GB free. Warn@85%, Critical@95% The C partition wasn't OK: hd c:\.* 83% full, 0.7GB free. Warn@85%, Critical@95% Investigating revealed the plugin working correctly DBG: fullsize 8388447 * 512 = 4294884864 DBG: usedsize 6984708 * 512 = 3576170496 However the C: drive wasn't using 3.5G, it was using about 210*6984708 So I doubt it's the allocationunit that's a problem. It now reports the correct value, which may be linked to a restart of the snmp service. OK: hd c:\.* 65% full, 1.4GB free. Warn@85%, Critical@95% Has anyone seen this kind of behavior before? <a href="http://www.bbc.co.uk">http://www.bbc.co.uk</a> This e-mail (and any attachments) is confidential and may contain personal views which are not the views of the BBC unless specifically stated. If you have received it in error, please delete it from your system. Do not use, copy or disclose the information in any way nor act in reliance on it and notify the sender immediately. Please note that the BBC monitors e-mails sent or received. Further communication will signify your consent to this.</BODY> </HTML>