I went ahead and did the digging. This is a bug that happens with large amounts of disk writes under Windows and Linux (as what will happen with a Nessus scan). If anyone receives a complaint, just show the admin the following from the Dell release notes:
"Improved cache throttling algorithm to prevent excessive cache maintenance overhead when processing large amounts of I/O. This helped to reduce megasas resets in Linux and Event 129s in Windows." I found this after seeing tons of this in /var/log/messages: megasas: [175]waiting for 1 commands to complete Sep 30 13:42:24 kernel: megasas: failed to do reset Sep 30 13:42:24 kernel: megasas: RESET -56199509 cmd=28 <c=2 t=0 l=0> Sep 30 13:42:24 kernel: megasas: cannot recover from previous reset failures Sep 30 13:42:29 kernel: megasas: RESET -56199509 cmd=28 <c=2 t=0 l=0> Sep 30 13:42:29 kernel: megasas: cannot recover from previous reset failures Sep 30 13:42:39 kernel: scsi: device set offline - command error recover failed: host 1 channel 2 id 0 lun 0 Sep 30 13:42:39 kernel: I/O error: dev 08:41, sector 116 Anyway, apparently the box was not patched as originally reported. Sonny -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Discini, Sonny Sent: Tuesday, September 30, 2008 4:11 PM To: [email protected] Subject: Dell server & Nessus A user reported to me that each time Nessus scans his Dell 6800 series server with an external DELL MD1000 drive (using PERC 5/E adapter to service the drive), the external unit becomes non responsive. Before I dig deep into the cause, has anyone seen this before? The OS is CentOS 5. The Dell box is reported to have all firmware updates (though not confirmed just yet). We're running SC 3.4.2 with Nessus 3.2.1 and using safe checks. Anyway, just a high level inquiry here. Thanks. Sonny _______________________________________________ Nessus mailing list [email protected] http://mail.nessus.org/mailman/listinfo/nessus _______________________________________________ Nessus mailing list [email protected] http://mail.nessus.org/mailman/listinfo/nessus
