fs.jffs2

Simplest configuration:

[fs#0]
type = jffs2
;for provisioning
svcmgr -s <svcname> set --kw fs#0.type=jffs2

create_options

scopable True
required False
provisioning True
default []
inheritance leaf > head
scope order specific > generic
convert shlex

Additional options to pass to the logical volume create command. Size and name are alread set.

size

scopable True
required False
provisioning True
default None
inheritance leaf > head
scope order specific > generic
convert size

The size of the logical volume to provision for this filesystem. A size expression or <n>%{FREE|PVS|VG}.

vg

scopable True
required False
provisioning True
default None
inheritance leaf > head
scope order specific > generic

The name of the disk group the filesystem device should be provisioned from.

blocking_post_provision

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

A command or script to execute after the resource provision action. Errors interrupt the action.

blocking_post_start

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

A command or script to execute after the resource start action. Errors interrupt the action.

blocking_post_stop

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

A command or script to execute after the resource stop action. Errors interrupt the action.

blocking_post_unprovision

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

A command or script to execute after the resource unprovision action. Errors interrupt the action.

blocking_pre_provision

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

A command or script to execute before the resource provision action. Errors interrupt the action.

blocking_pre_start

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

A command or script to execute before the resource start action. Errors interrupt the action.

blocking_pre_stop

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

A command or script to execute before the resource stop action. Errors interrupt the action.

blocking_pre_unprovision

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

A command or script to execute before the resource unprovision action. Errors interrupt the action.

dev

scopable True
required True
provisioning False
default None
inheritance leaf > head
scope order specific > generic

The block device file or filesystem image file hosting the filesystem to mount. Different device can be set up on different nodes using the dev@nodename syntax

disable

scopable True
required False
provisioning False
default False
inheritance leaf
scope order specific > generic
candidates True | False
convert boolean

A disabled resource will be ignored on service startup and shutdown. Its status is always reported n/a.

Set in DEFAULT, the whole service is disabled. A disabled service does not honor start and stop actions. These actions immediately return success.

sudo svcmgr -s <svcname> disable only sets DEFAULT.disable. As resources disabled state is not changed, sudo svcmgr -s <svcname> enable does not enable disabled resources.

encap

scopable True
required False
provisioning False
default False
inheritance leaf > head
scope order specific > generic
candidates True | False
convert boolean

Set to True to ignore this resource in the nodes context and consider it in the encapnodes context. The resource is thus handled by the agents deployed in the service containers.

mnt

scopable True
required True
provisioning False
default None
inheritance leaf > head
scope order specific > generic

The mount point where to mount the filesystem.

mnt_opt

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

The mount options.

monitor

scopable True
required False
provisioning False
default False
inheritance leaf > head
scope order specific > generic
candidates True | False
convert boolean

A down monitored resource will trigger a node suicide if the monitor thinks it should be up and the resource can not be restarted.

no_preempt_abort

scopable True
required False
provisioning False
default False
inheritance leaf > head
scope order specific > generic
candidates True | False
convert boolean

If set to 'true', OpenSVC will preempt scsi reservation with a preempt command instead of a preempt and and abort. Some scsi target implementations do not support this last mode (esx). If set to 'false' or not set, 'no_preempt_abort' can be activated on a per-resource basis.

optional

scopable True
required False
provisioning False
default True for tasks, syncs and resources tagged 'noaction', else False
inheritance leaf > head
scope order specific > generic
convert tristate

Action failures on optional resources are logged but do not stop the action sequence. Also the optional resource status is not aggregated to the instance 'availstatus', but aggregated to the 'overallstatus'. Resource tagged 'noaction' and sync resources are automatically considered optional. Useful for resources like dump filesystems for example.

pg_blkio_weight

scopable True
required False
provisioning False
default None
inheritance leaf
scope order specific > generic
depends create_pg in [True]
convert integer

Block IO relative weight. Value: between 10 and 1000. Kernel default: 1000.

pg_cpu_quota

scopable True
required False
provisioning False
default None
inheritance leaf
scope order specific > generic
depends create_pg in [True]

The percent ratio of one core to allocate to the process group if % is specified, else the absolute value to set in the process group parameter. For example, on Linux cgroups, -1 means unlimited, and a positive absolute value means the number of microseconds to allocate each period. 50%@all means 50% of all cores, and 50%@2 means 50% of two cores.

pg_cpu_shares

scopable True
required False
provisioning False
default None
inheritance leaf
scope order specific > generic
depends create_pg in [True]
convert integer

Kernel default value is used, which usually is 1024 shares. In a cpu-bound situation, ensure the service does not use more than its share of cpu ressource. The actual percentile depends on shares allowed to other services.

pg_cpus

scopable True
required False
provisioning False
default None
inheritance leaf
scope order specific > generic
depends create_pg in [True]

Allow service process to bind only the specified cpus. Cpus are specified as list or range : 0,1,2 or 0-2

pg_mem_limit

scopable True
required False
provisioning False
default None
inheritance leaf
scope order specific > generic
depends create_pg in [True]
convert size

Ensures the service does not use more than specified memory (in bytes). The Out-Of-Memory killer get triggered in case of tresspassing.

pg_mem_oom_control

scopable True
required False
provisioning False
default None
inheritance leaf
scope order specific > generic
depends create_pg in [True]
convert integer

A flag (0 or 1) that enables or disables the Out of Memory killer for a cgroup. If enabled (0), tasks that attempt to consume more memory than they are allowed are immediately killed by the OOM killer. The OOM killer is enabled by default in every cgroup using the memory subsystem; to disable it, write 1.

pg_mem_swappiness

scopable True
required False
provisioning False
default None
inheritance leaf
scope order specific > generic
depends create_pg in [True]
convert integer

Set a swappiness value for the process group.

pg_mems

scopable True
required False
provisioning False
default None
inheritance leaf
scope order specific > generic
depends create_pg in [True]

Allow service process to bind only the specified memory nodes. Memory nodes are specified as list or range : 0,1,2 or 0-2

pg_vmem_limit

scopable True
required False
provisioning False
default None
inheritance leaf
scope order specific > generic
depends create_pg in [True]
convert size

Ensures the service does not use more than specified memory+swap (in bytes). The Out-Of-Memory killer get triggered in case of tresspassing. The specified value must be greater than pg_mem_limit.

post_provision

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

A command or script to execute after the resource provision action. Errors do not interrupt the action.

post_start

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

A command or script to execute after the resource start action. Errors do not interrupt the action.

post_stop

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

A command or script to execute after the resource stop action. Errors do not interrupt the action.

post_unprovision

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

A command or script to execute after the resource unprovision action. Errors do not interrupt the action.

pre_provision

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

A command or script to execute before the resource provision action. Errors do not interrupt the action.

pre_start

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

A command or script to execute before the resource start action. Errors do not interrupt the action.

pre_stop

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

A command or script to execute before the resource stop action. Errors do not interrupt the action.

pre_unprovision

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

A command or script to execute before the resource unprovision action. Errors do not interrupt the action.

promote_rw

scopable False
required False
provisioning False
default False
inheritance leaf > head
scope order specific > generic
candidates True | False
convert boolean

If set to 'true', OpenSVC will try to promote the base devices to read-write on start.

provision

scopable True
required False
provisioning False
default True
inheritance leaf > head
scope order specific > generic
candidates True | False
convert boolean

Set to false to skip the resource on provision and unprovision actions. Warning: provisioning implies destructive operations like formating. Unprovisioning does not keep a copy of the service data.

provision_requires

scopable True
required False
provisioning False
default  
inheritance leaf > head
scope order specific > generic

A whitespace-separated list of conditions to meet to accept running a 'provision' action. A condition is expressed as <rid>(<state>,...). If states are omitted, 'up,stdby up' is used as the default expected states.

restart

scopable True
required False
provisioning False
default 0
inheritance leaf > head
scope order specific > generic
convert integer

The agent will try to restart a resource n times before falling back to the monitor action. A resource restart is triggered if the resource is not disabled and its status is not up, and the node is not frozen, and the service instance is not frozen and its local expect is set to 'started'. If a resource has a restart set to a value >0, its status is evaluated at the frequency defined by DEFAULT.monitor_schedule instead of the frequency defined by DEFAULT.status_schedule.

scsireserv

scopable False
required False
provisioning False
default False
inheritance leaf > head
scope order specific > generic
candidates True | False
convert boolean

If set to 'true', OpenSVC will try to acquire a type-5 (write exclusive, registrant only) scsi3 persistent reservation on every path to every disks held by this resource. Existing reservations are preempted to not block service start-up. If the start-up was not legitimate the data are still protected from being written over from both nodes. If set to 'false' or not set, 'scsireserv' can be activated on a per-resource basis.

shared

scopable True
required False
provisioning False
default False
inheritance leaf > head
scope order specific > generic
candidates True | False
convert boolean

Set to True to skip the resource on provision and unprovision actions if the action has already been done by a peer. Shared resources, like vg built on SAN disks must be provisioned once. All resources depending on a shared resource must also be flagged as shared.

snap_size

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

If this filesystem is build on a snapable logical volume or is natively snapable (jfs, vxfs, ...) this setting overrides the default 10% of the filesystem size to compute the snapshot size. The snapshot is created by snap-enabled rsync-type sync resources. The unit is Megabytes.

standby

scopable True
required False
provisioning False
default False
inheritance leaf > head
scope order specific > generic
candidates True | False
convert boolean

Always start the resource, even on standby instances. The daemon is responsible for starting standby resources. A resource can be set standby on a subset of nodes using keyword scoping.

A typical use-case is sync'ed fs on non-shared disks: the remote fs must be mounted to not overflow the underlying fs.

Warning

Don't set shared resources standby: fs on shared disks for example.

start_requires

scopable True
required False
provisioning False
default  
inheritance leaf > head
scope order specific > generic

A whitespace-separated list of conditions to meet to accept running a 'start' action. A condition is expressed as <rid>(<state>,...). If states are omitted, 'up,stdby up' is used as the default expected states.

stop_requires

scopable True
required False
provisioning False
default  
inheritance leaf > head
scope order specific > generic

A whitespace-separated list of conditions to meet to accept running a 'stop' action. A condition is expressed as <rid>(<state>,...). If states are omitted, 'up,stdby up' is used as the default expected states.

subset

scopable True
required False
provisioning False
default None
inheritance leaf
scope order specific > generic

Assign the resource to a specific subset.

tags

scopable True
required False
provisioning False
default  
inheritance leaf > head
scope order specific > generic
convert set

A list of tags. Arbitrary tags can be used to limit action scope to resources with a specific tag. Some tags can influence the driver behaviour. For example 'noaction' avoids any state changing action from the driver and implies optional=true, 'nostatus' forces the status to n/a.

unprovision

scopable True
required False
provisioning False
default True
inheritance leaf > head
scope order specific > generic
candidates True | False
convert boolean

Set to false to skip the resource on unprovision actions. Warning: Unprovisioning does not keep a copy of the service data.

unprovision_requires

scopable True
required False
provisioning False
default  
inheritance leaf > head
scope order specific > generic

A whitespace-separated list of conditions to meet to accept running a 'unprovision' action. A condition is expressed as <rid>(<state>,...). If states are omitted, 'up,stdby up' is used as the default expected states.

zone

scopable True
required False
provisioning False
default None
inheritance leaf > head
scope order specific > generic

The zone name the fs refers to. If set, the fs mount point is reparented into the zonepath rootfs.