Struct lsm::Disk

pub struct Disk {
    pub id: String,
    pub name: String,
    pub disk_type: DiskType,
    pub block_size: u64,
    pub num_of_blocks: u64,
    pub status: u64,
    pub system_id: String,
    pub location: Option<String>,
    pub rpm: Option<i32>,
    pub link_type: Option<DiskLinkType>,
    pub vpd83: Option<String>,
    // some fields omitted
}

Fields

id: String

Identifier.

name: String

Human friendly name.

disk_type: DiskType

Disk type.

block_size: u64

Block size in bytes.

num_of_blocks: u64

Count of block.

status: u64

Disk status stored in bitmap. Valid status value are:

• Disk::STATUS_UNKNOWN
• Disk::STATUS_OK
• Disk::STATUS_OTHER
• Disk::STATUS_PREDICTIVE_FAILURE
• Disk::STATUS_ERROR
• Disk::STATUS_REMOVED
• Disk::STATUS_STARTING
• Disk::STATUS_STOPPING
• Disk::STATUS_STOPPED
• Disk::STATUS_INITIALIZING
• Disk::STATUS_MAINTENANCE_MODE
• Disk::STATUS_SPARE_DISK
• Disk::STATUS_RECONSTRUCT
• Disk::STATUS_FREE

if (d.status & Disk::STATUS_OK) == 0 {
    println!("Disk {}/{} is not healthy", d.name, d.id);
}

system_id: String

Identifier of owner system.

location: Option<String>

Disk location in storage topology.

rpm: Option<i32>

Disk rotation speed - revolutions per minute(RPM):

• -1 -- Unknown RPM speed.

• 0 -- Non-rotating medium (e.g., SSD).

• 1 -- Rotational disk with unknown speed.

• > 1 -- Normal rotational disk (e.g., HDD).

link_type: Option<DiskLinkType>

Disk data link type.

vpd83: Option<String>

SCSI VPD 0x83 NAA type identifier. Udev treat it as ID_WWN_WITH_EXTENSION

Methods

impl Disk

const STATUS_UNKNOWN: u64

STATUS_UNKNOWN: u64 = 1

Plugin failed to query out the status of disk.

const STATUS_OK: u64

STATUS_OK: u64 = 1 << 1

Disk is up and healthy.

const STATUS_OTHER: u64

STATUS_OTHER: u64 = 1 << 2

Vendor specific status.

const STATUS_PREDICTIVE_FAILURE: u64

STATUS_PREDICTIVE_FAILURE: u64 = 1 << 3

Disk is still functional but will fail soon.

const STATUS_ERROR: u64

STATUS_ERROR: u64 = 1 << 4

Error make disk not functional.

const STATUS_REMOVED: u64

STATUS_REMOVED: u64 = 1 << 5

Disk was removed by administrator.

const STATUS_STARTING: u64

STATUS_STARTING: u64 = 1 << 6

Disk is starting up.

const STATUS_STOPPING: u64

STATUS_STOPPING: u64 = 1 << 7

Disk is shutting down.

const STATUS_STOPPED: u64

STATUS_STOPPED: u64 = 1 << 8

Disk is stopped by administrator.

const STATUS_INITIALIZING: u64

STATUS_INITIALIZING: u64 = 1 << 9

Disk is not functional yet, internal storage system is initializing this disk, it could be:

• Initialising new disk.

• Zeroing disk.

• Scrubbing disk data.

const STATUS_MAINTENANCE_MODE: u64

STATUS_MAINTENANCE_MODE: u64 = 1 << 10

In maintenance for bad sector scan, integrity check and etc It might be combined with Disk::STATUS_OK or Disk::STATUS_STOPPED for online maintenance or offline maintenance.

const STATUS_SPARE_DISK: u64

STATUS_SPARE_DISK: u64 = 1 << 11

Disk is configured as spare disk.

const STATUS_RECONSTRUCT: u64

STATUS_RECONSTRUCT: u64 = 1 << 12

Disk is reconstructing its data.

const STATUS_FREE: u64

STATUS_FREE: u64 = 1 << 13

Indicate the whole disk is not holding any data or acting as a dedicate spare disk. This disk could be assigned as a dedicated spare disk or used for creating pool. If any spare disk(like those on NetApp ONTAP) does not require any explicit action when assigning to pool, it should be treated as free disk and marked as Disk::STATUS_FREE | Disk::STATUS_SPARE_DISK.

Trait Implementations

impl Debug for Disk

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Clone for Disk

fn clone(&self) -> Disk

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.