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Do you have a usb or memory card reader connected to the box?
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Do you have a usb or memory card reader connected to the box?

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No, I have not. This belonged to answers I found on the net too. The only thing I have connected is a storage device (iSCSI).
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No, I have not. This belonged to answers I found on the net too. The only thing I have connected is a storage device (iSCSI).

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What storage device is it? Distro and kernel version?
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What storage device is it? Distro and kernel version?

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None of the answers was the solution.
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All 20 seconds these messages appear in /var/log/messages<br />
<br />
May 9 23:27:51 proxmox kernel: sd 9:0:0:2: reservation conflict<br />
May 9 23:27:51 proxmox kernel: sd 9:0:0:2: [sdd] Test WP failed, assume Write Enabled //// Any ideas what could cause this ? We have proxmox kernel 2.3 running on Debian 6.0.7
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All 20 seconds these messages appear in /var/log/messages

May 9 23:27:51 proxmox kernel: sd 9:0:0:2: reservation conflict
May 9 23:27:51 proxmox kernel: sd 9:0:0:2: [sdd] Test WP failed, assume Write Enabled //// Any ideas what could cause this ? We have proxmox kernel 2.3 running on Debian 6.0.7

test WP failed, assume write enabled

Linux is a UNIX-like open source operating system with hundreds of distinct distributions, including: Fedora, openSUSE, Ubuntu, Debian, Slackware, Gentoo, CentOS, and Arch Linux. Linux is generally associated with web and database servers, but has become popular in many niche industries and applications.

Linux

Virtualization is the act of creating a virtual (rather than actual) version of something, including (but not limited to) a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Virtualization is usually the creation of a system that executes separate from the underlying hardware resources, or the creation of an entire desktop for systems located elsewhere, similar to thin clients.

Virtualization

A Linux distribution is an operating system made as a software collection based on the Linux kernel and, often, on a package management system and are available for a variety of systems. A typical Linux distribution comprises a Linux kernel, GNU tools and libraries, additional software, documentation, a window system (the most common being the X Window System), a window manager, and a desktop environment. Most Linux systems are open-source software made available both as compiled binaries and in source code form, allowing modifications to the original software. Over three hundred distributions are in active development, including commercially backed distributions (such as Fedora, openSUSE and Ubuntu) and community-driven distributions (such as Debian, Slackware, Gentoo and Arch Linux).