sheep (8) Linux Manual Page

sheep – Distributed Block Storage System for KVM

Snynopsis

sheep [options] [PATH]

Description

sheep Sheepdog is a distributed storage system for KVM/QEMU. It provides highly available block level storage volumes to virtual machines. Sheepdog supports advanced volume management features such as snapshot, cloning, and thin provisioning. The architecture of Sheepdog is fully symmetric; there is no central node such as a meta-data server.

The server daemon is called sheep(8). A command line utility is available via collie(8). KVM/QEMU virtual machines use the sheep daemon via a block driver available in qemu(1).

Options

-p, –port port

This option specifies the IP port over which sheep looks for other sheepdog cluster nodes.

-f, –foreground

This option forces the sheepdog daemon to run in the foreground.

-l, –loglevel loglevel

This option specifies the message level printed.

-d, –debug

This option displays debug messages.

-h, –help

Display help and exit.

Path

Proper LSB systems will store sheepdog files in /var/lib/sheepdog. The init script uses this directory by default. The directory must be on a filesystem with xattr support. In the case of ext3, user_xattr should be added to the mount options.

mount -o remount,user_xattr /var/lib/shepdog

Dependencies

sheepdog requires QEMU 0.13.z or later and Corosync 1.y.z.

Files

/var/lib/sheepdog – Directory containing block storage information

See Also

collie(8),qemu(1),corosync_overview(8)

Authors

This software is developed by the sheepdog community which may be reached via mailing list at <sheepdog [at] lists.wpkg.org>.