Module driver:raid - RAID driver

Index

• Channel type CT.RAID - Used for communication with the RAID driver for controlling/configurating RAID devices
  
  • Variable in? - Requests to RAID driver
  • Variable out! - Responses from RAID driver
• Protocol P.RAID.IN - Requests to RAID driver
  
  • Tag activate - Activate a specific RAID device, responds with 'result'
  • Tag add.unit - Add the specified block device as a unit
  • Tag change.hash - Change existing RAID device hash (old, new), responds with 'result'
  • Tag change.name - Change existing RAID device name, responds with 'result'
  • Tag create.device - Create a new RAID device, items are 'level' and 'n.devices'
  • Tag list.device.units - List all of a particular device's units, responds with 'unit's followed by 'ok'
  • Tag list.devices - List all RAID devices, responds with 'device's followed by 'ok'
  • Tag lookup.device - Lookup a specified device by name (returns 'device' or 'result' on error)
  • Tag lookup.unit - Lookup a specified device unit by name (returns 'unit' or 'result' on error)
• Protocol P.RAID.OUT - Responses from RAID driver
  
  • Tag device - RAID device description
  • Tag ok - Generic ok
  • Tag result - Generic result
  • Tag unit - RAID device unit description
• Record RAID.DEVICE.DESC - Describes a single RAID device
  
  • Variable active - Whether this device is active (running)
  • Variable blocksize - Individual block-size
  • Variable desc - Description of the device
  • Variable desc.len - Length of 'desc'
  • Variable hash.devices - Hashcodes of individual devices
  • Variable hashcode - Some hashcode that uniquely identifies this RAID device
  • Variable level - RAID level (see )
  • Variable n.devices - Number of devices (total)
  • Variable name - Name of this device
  • Variable name.len - Length of 'name'
  • Variable nblocks - Number of blocks available on this device
• Group RAID.LEVEL - RAID levels
  
  • Constant RAID.LEVEL.0 - RAID level 0 (block-level striping)
  • Constant RAID.LEVEL.1 - RAID level 1 (mirror)
  • Constant RAID.LEVEL.5 - RAID level 5 (striping plus parity)
  • Constant RAID.LEVEL.NONE - No RAID, may be a logical volume of sorts
• Constant RAID.MAX.UNITS - Maximum number of units that may participate in a single RAID device
• Record RAID.UNIT.DESC - Describes a single RAID unit (combined to make complete devices)
  
  • Variable active - True if the device is in-use
  • Variable device - Block device that this uses
  • Variable device.hash - Hashcode of the RAID device to which this belongs
  • Variable device.len - Length of the above
  • Variable hashcode - Some hashcode that uniquely identifies this RAID unit
  • Variable length - Number of blocks
  • Variable start - Starting block number

Declarations