Safe Haskell	Safe-Infered

Ganeti.Storage.Drbd.Types

Description

DRBD Data Types

This module holds the definition of the data types describing the status of DRBD.

Synopsis

Documentation

data DRBDStatus Source

Data type contaning all the data about the status of DRBD.

Constructors

DRBDStatus
Fields versionInfo :: VersionInfo Version information about DRBD deviceInfos :: [DeviceInfo] Per-minor information

Instances

Eq DRBDStatus
Show DRBDStatus
JSON DRBDStatus	The DRBDStatus instance of JSON.

data VersionInfo Source

Data type describing the DRBD version.

Constructors

VersionInfo
Fields version :: Maybe String DRBD driver version api :: Maybe String The api version proto :: Maybe String The protocol version srcversion :: Maybe String The version of the source files gitHash :: Maybe String Git hash of the source files buildBy :: Maybe String Who built the binary (and, optionally, when)

Instances

Eq VersionInfo
Show VersionInfo
JSON VersionInfo	The VersionInfo instance of JSON.

data DeviceInfo Source

Data type describing a device.

Constructors

UnconfiguredDevice Int	An DRBD minor marked as unconfigured
DeviceInfo	A configured DRBD minor
Fields minorNumber :: Int The minor index of the device connectionState :: ConnState State of the connection resourceRoles :: LocalRemote Role Roles of the resources diskStates :: LocalRemote DiskState Status of the disks replicationProtocol :: Char The replication protocol being used ioFlags :: String The input/output flags perfIndicators :: PerfIndicators Performance indicators syncStatus :: Maybe SyncStatus The status of the syncronization of the disk (only if it is happening) resync :: Maybe AdditionalInfo Additional info by DRBD 8.0 actLog :: Maybe AdditionalInfo Additional info by DRBD 8.0 instName :: Maybe String The name of the associated instance

Instances

Eq DeviceInfo
Show DeviceInfo
JSON DeviceInfo	The DeviceInfo instance of JSON.

data ConnState Source

Data type describing the state of the connection.

Constructors

StandAlone	No network configuration available
Disconnecting	Temporary state during disconnection
Unconnected	Prior to a connection attempt
Timeout	Following a timeout in the communication
BrokenPipe	After the connection to the peer was lost
NetworkFailure	After the connection to the partner was lost
ProtocolError	After the connection to the partner was lost
TearDown	The peer is closing the connection
WFConnection	Waiting for the peer to become visible
WFReportParams	Waiting for first packet from peer
Connected	Connected, data mirroring active
StartingSyncS	Source of a full sync started by admin
StartingSyncT	Target of a full sync started by admin
WFBitMapS	Source of a just starting partial sync
WFBitMapT	Target of a just starting partial sync
WFSyncUUID	Synchronization is about to begin
SyncSource	Source of a running synchronization
SyncTarget	Target of a running synchronization
PausedSyncS	Source of a paused synchronization
PausedSyncT	Target of a paused synchronization
VerifyS	Source of a running verification
VerifyT	Target of a running verification
Unconfigured	The device is not configured

Instances

Eq ConnState
Show ConnState
Arbitrary ConnState
JSON ConnState	The ConnState instance of JSON.

data LocalRemote a Source

Algebraic data type describing something that has a local and a remote value.

Constructors

LocalRemote
Fields local :: a The local value remote :: a The remote value

Instances

Eq a => Eq (LocalRemote a)
Show a => Show (LocalRemote a)

data Role Source

Data type describing.

Constructors

Primary	The device role is primary
Secondary	The device role is secondary
Unknown	The device role is unknown

Instances

Eq Role
Show Role
Arbitrary Role
JSON Role	The Role instance of JSON.

data DiskState Source

Data type describing disk states.

Constructors

Diskless	No local block device assigned to the DRBD driver
Attaching	Reading meta data
Failed	I/O failure
Negotiating	Attach on an already-connected device
Inconsistent	The data is inconsistent between nodes.
Outdated	Data consistent but outdated
DUnknown	No network connection available
Consistent	Consistent data, but without network connection
UpToDate	Consistent, up-to-date. This is the normal state

Instances

Eq DiskState
Show DiskState
Arbitrary DiskState
JSON DiskState	The DiskState instance of JSON.

data PerfIndicators Source

Data type containing data about performance indicators.

Constructors

PerfIndicators

Fields

networkSend :: Int: KiB of data sent on the network
networkReceive :: Int: KiB of data received from the network
diskWrite :: Int: KiB of data written on local disk
diskRead :: Int: KiB of data read from local disk
activityLog :: Int: Number of updates of the activity log
bitMap :: Int: Number of updates to the bitmap area of the metadata
localCount :: Int: Number of open requests to the local I/O subsystem
pending :: Int: Num of requests sent to the partner but not yet answered
unacknowledged :: Int: Num of requests received by the partner but still to be answered
applicationPending :: Int: Num of block I/O requests forwarded to DRBD but that have not yet been answered
epochs :: Maybe Int: Number of epoch objects
writeOrder :: Maybe Char: Currently used write ordering method
outOfSync :: Maybe Int: KiB of storage currently out of sync

Instances

Eq PerfIndicators
Show PerfIndicators
JSON PerfIndicators	The PerfIndicators instance of JSON.

data SyncStatus Source

Data type containing data about the synchronization status of a device.

Constructors

SyncStatus

Fields

percentage :: Double: Percentage of syncronized data
partialSyncSize :: Int: Numerator of the fraction of synced data
totalSyncSize :: Int: Denominator of the fraction of synced data
syncUnit :: SizeUnit: Measurement unit of the previous fraction
timeToFinish :: Time: Expected time before finishing the syncronization
speed :: Int: Speed of the syncronization
want :: Maybe Int: Want of the syncronization
speedSizeUnit :: SizeUnit: Size unit of the speed
speedTimeUnit :: TimeUnit: Time unit of the speed

Instances

Eq SyncStatus
Show SyncStatus
JSON SyncStatus	The SyncStatus instance of JSON.

data SizeUnit Source

Data type describing a size unit for memory.

Constructors

KiloByte
MegaByte

Instances

Eq SizeUnit
Show SizeUnit
Arbitrary SizeUnit
JSON SizeUnit	The SizeUnit instance of JSON.

data Time Source

Data type describing a time (hh:mm:ss).

Constructors

Time
Fields hour :: Int min :: Int sec :: Int

Instances

Eq Time
Show Time
JSON Time	The Time instance of JSON.

data TimeUnit Source

Data type describing a time unit.

Constructors

Second

Instances

Eq TimeUnit
Show TimeUnit
Arbitrary TimeUnit
JSON TimeUnit	The TimeUnit instance of JSON.

data AdditionalInfo Source

Additional device-specific cache-like information produced by drbd <= 8.0.

Internal debug information exported by old DRBD versions. Undocumented both in DRBD and here.

Constructors

AdditionalInfo
Fields partialUsed :: Int totalUsed :: Int hits :: Int misses :: Int starving :: Int dirty :: Int changed :: Int

Instances

Eq AdditionalInfo
Show AdditionalInfo

data DrbdInstMinor Source

Data type representing the pairing of a DRBD minor with an instance.

Constructors

DrbdInstMinor
Fields dimNode :: String dimMinor :: Int dimInstName :: String dimDiskIdx :: String dimRole :: String dimPeer :: String

Instances

Show DrbdInstMinor
JSON DrbdInstMinor	The DrbdInstMinor instance of JSON.