SYNOPSIS
dog <command> <subcommand> [options]DESCRIPTION
dog - Sheepdog is a distributed storage system for 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 dog(8). QEMU virtual machines use the sheep daemon via a block driver available in qemu(1).
For more information, run 'dog <command> <subcommand> --help'.
COMMAND & SUBCOMMAND
- vdi check [-s snapshot] [-a address] [-p port] [-h] <vdiname>
-
Options:
-s, --snapshot specify a snapshot id or tag name
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
check and repair image's consistency - vdi create [-P] [-y] [-c copies] [-a address] [-p port] [-h] [-r] [-v] <vdiname> <size>
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Options:
-P, --prealloc preallocate all the data objects
-y, --hyper create a hyper volume
-c, --copies specify the data redundancy level
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exit
-r, --raw raw output mode: omit headers, separate fields with
single spaces and print all sizes in decimal bytes
-v, --verbose print more information than defaultDescription:
create an image - vdi snapshot [-s snapshot] [-a address] [-p port] [-h] [-r] [-v] <vdiname>
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Options:
-s, --snapshot specify a snapshot id or tag name
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exit
-r, --raw raw output mode: omit headers, separate fields with
single spaces and print all sizes in decimal bytes
-v, --verbose print more information than defaultDescription:
create a snapshot - vdi clone [-s snapshot] [-P] [-c copies] [-a address] [-p port] [-h] [-r] [-v] <src vdi> <dst vdi>
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Options:
-s, --snapshot specify a snapshot id or tag name
-P, --prealloc preallocate all the data objects
-c, --copies specify the data redundancy level
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exit
-r, --raw raw output mode: omit headers, separate fields with
single spaces and print all sizes in decimal bytes
-v, --verbose print more information than defaultDescription:
clone an image - vdi delete [-s snapshot] [-a address] [-p port] [-h] <vdiname>
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Options:
-s, --snapshot specify a snapshot id or tag name
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
delete an image - vdi rollback [-s snapshot] [-a address] [-p port] [-h] [-f] [-r] [-v] <vdiname>
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Options:
-s, --snapshot specify a snapshot id or tag name
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exit
-f, --force do operation forcibly
-r, --raw raw output mode: omit headers, separate fields with
single spaces and print all sizes in decimal bytes
-v, --verbose print more information than defaultDescription:
rollback to a snapshot - vdi list [-a address] [-p port] [-r] [-h] [vdiname]
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Options:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-r, --raw raw output mode: omit headers, separate fields with
single spaces and print all sizes in decimal bytes
-h, --help display this help and exitDescription:
list images - vdi tree [-a address] [-p port] [-h]
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Options:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
show images in tree view format - vdi graph [-a address] [-p port] [-h]
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Options:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
show images in Graphviz dot format - vdi object [-i index] [-s snapshot] [-a address] [-p port] [-h] <vdiname>
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Options:
-i, --index specify the index of data objects
-s, --snapshot specify a snapshot id or tag name
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
show object information in the image - vdi track [-i index] [-s snapshot] [-a address] [-p port] [-h] [-o oid] <vdiname>
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Options:
-i, --index specify the index of data objects
-s, --snapshot specify a snapshot id or tag name
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exit
-o, --oid specify the object id of the tracking objectDescription:
show the object epoch trace in the image - vdi setattr [-d] [-x] [-a address] [-p port] [-h] <vdiname> <key> [value]
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Options:
-d, --delete delete a key
-x, --exclusive write in an exclusive mode
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
set a VDI attribute - vdi getattr [-a address] [-p port] [-h] <vdiname> <key>
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Options:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
get a VDI attribute - vdi resize [-a address] [-p port] [-h] <vdiname> <new size>
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Options:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
resize an image - vdi read [-s snapshot] [-a address] [-p port] [-h] <vdiname> [<offset> [<len>]]
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Options:
-s, --snapshot specify a snapshot id or tag name
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
read data from an image - vdi write [-a address] [-p port] [-w] [-h] <vdiname> [<offset> [<len>]]
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Options:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-w, --writeback use writeback mode
-h, --help display this help and exitDescription:
write data to an image - vdi backup [-s snapshot] [-F from] [-a address] [-p port] [-h] <vdiname> <backup>
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Options:
-s, --snapshot specify a snapshot id or tag name
-F, --from create a differential backup from the snapshot
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
create an incremental backup between two snapshots - vdi restore [-s snapshot] [-a address] [-p port] [-h] <vdiname> <backup>
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Options:
-s, --snapshot specify a snapshot id or tag name
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
restore snapshot images from a backup - vdi cache {flush|delete|info|purge} [-s snapshot] [-a address] [-p port] [-h] <vdiname>
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Available subcommands:
flush flush the cache of the vdi specified.
delete delete the cache of the vdi specified in all nodes.
info show usage of the cache
purge purge the cache of all vdi (no flush)Options:
-s, --snapshot specify a snapshot id or tag name
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
Run 'dog vdi cache' for more information - node kill [-a address] [-p port] [-r] [-h] [-l] <node id>
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Options:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-r, --raw raw output mode: omit headers, separate fields with
single spaces and print all sizes in decimal bytes
-h, --help display this help and exit
-l, --local issue request to local nodeDescription:
kill node - node list [-a address] [-p port] [-r] [-h]
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Options:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-r, --raw raw output mode: omit headers, separate fields with
single spaces and print all sizes in decimal bytes
-h, --help display this help and exitDescription:
list nodes - node info [-a address] [-p port] [-r] [-h]
-
Options:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-r, --raw raw output mode: omit headers, separate fields with
single spaces and print all sizes in decimal bytes
-h, --help display this help and exitDescription:
show information about each node - node recovery [-a address] [-p port] [-h] [-P] [-r]
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Options:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exit
-P, --progress show progress of recovery in the node
-r, --raw raw output mode: omit headers, separate fields with
single spaces and print all sizes in decimal bytesDescription:
show recovery information of nodes - node md {info|plug|unplug} [-a address] [-p port] [-r] [-A] [-h] [disks]
-
Available subcommands:
info show multi-disk information
plug plug more disk(s) into node
unplug unplug disk(s) from nodeOptions:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-r, --raw raw output mode: omit headers, separate fields with
single spaces and print all sizes in decimal bytes
-A, --all show md information of all the nodes
-h, --help display this help and exitDescription:
See 'dog node md' for more information - node stat [-a address] [-p port] [-r] [-w] [-h]
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Options:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-r, --raw raw output mode: omit headers, separate fields with
single spaces and print all sizes in decimal bytes
-w, --watch watch the stat every second
-h, --help display this help and exitDescription:
show stat information about the node - node log level [-a address] [-p port] [-h]
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Available subcommands:
level manipulate loglevelOptions:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
show or set log level of the node - cluster info [-a address] [-p port] [-r] [-h] [-s]
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Options:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-r, --raw raw output mode: omit headers, separate fields with
single spaces and print all sizes in decimal bytes
-h, --help display this help and exit
-s, --backend show backend store informationDescription:
show cluster information - cluster format [-b store] [-c copies] [-t] [-a address] [-p port] [-h]
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Options:
-b, --store specify backend store
-c, --copies specify the default data redundancy (number of copies)
-t, --strict do not serve write request if number of nodes is not sufficient
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
create a Sheepdog store - cluster shutdown [-a address] [-p port] [-h]
-
Options:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
stop Sheepdog - cluster snapshot {save|list|load} [-a address] [-p port] [-h] <tag|idx> <path>
-
Available subcommands:
save save snapshot to localpath
list list snapshot of localpath
load load snapshot from localpathOptions:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
snapshot/restore the cluster - cluster recover {force|enable|disable} [-a address] [-f] [-p port] [-h]
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Available subcommands:
force force recover cluster immediately
enable enable automatic recovery and run once recover if necessary
disable disable automatic recoveryOptions:
-a, --address specify the daemon address (default: localhost)
-f, --force do not prompt for confirmation
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
See 'dog cluster recover' for more information - cluster reweight [-a address] [-p port] [-h]
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Options:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
reweight the cluster - cluster check [-a address] [-p port] [-h]
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Options:
-a, --address specify the daemon address (default: localhost)
-p, --port specify the daemon port
-h, --help display this help and exitDescription:
check and repair cluster
DEPENDENCIES
Sheepdog requires QEMU 0.13.z or later and Corosync 1.y.z or 2.y.z.
FILES
none
AUTHORS
This software is developed by the Sheepdog community which may be reached via mailing list at <[email protected]>.