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Oracle® ZFS Storage Appliance Administration Guide, Release OS8.7.x

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Updated: September 2017
 
 

LUN Properties


Note -  In the CLI, use the get command to see a list of all properties.
Table 115  LUNs Properties
BUI Location
BUI Name
CLI Name
Property Type
Description
Create LUN
Project
--
--
Defines which project the LUN uses to inherit parameter settings.
Name
--
--
Defines the name of the LUN.
Volume size
volsize
LUN local
Defines the maximum volume size and unit of measurement. For more information, see Volume size.
Thin provisioned
sparse
LUN local
Indicates only the amount of space physically consumed by data is used when selected. For more information, see Thin provisioned.
Volume block size
volblocksize
Create time
Native block size for the LUN; any power of 2 from 512 bytes to 1M, and the default is 8K.
Online
status
LUN local
Indicates whether it is online or not.
Target group
targetgroup
LUN local
Shows groups of targets used when exporting a LUN.
Initiator group(s)
initiatorgroup
LUN local
Shows groups of initiators that can access the LUN.
Mountpoint
mountpoint
Inherited
Controls the path used to export filesystems. For more information, see Mountpoint.
LU number
lunumber
LUN local
Sets the logical unit number to zero or automatically assigns the number.
Encryption
encryption
Inherited
Defines the encryption type.
Inherit key
--
--
Indicates the encryption key is inherited from the parent project if selected. For more information see, Managing Encryption Keys.
Key
key
Inherited
Sets a specific LOCAL or OKM key and is used when the key is not inherited from the parent project.
Keyname
keyname
Static
Identifies the key.
GUID
lunguid
Read-only, LUN local
A globally unique, read-only identifier that identifies the SCSI device.
General - Space Usage - Data
Volume size
volsize
LUN local
Defines the maximum volume size and unit of measurement. For more information, see Volume size.
Thin provisioned
sparse
LUN local
Indicates only the amount of space physically consumed by data is used when selected. For more information, see Thin provisioned.
General - Properties (Inherit from project)
Data deduplication (warning)
dedup
Inherited
Controls whether duplicate copies of data are eliminated. For more information, see Data Deduplication.
Data compression
compression
Inherited
Controls whether data is compressed before being written to disk. For more information, see Data Compression.
Checksum
checksum
Inherited
Controls the checksum used for data blocks. For more information, see Checksum.
Additional replication
copies
Inherited
Controls number of copies stored of each block, above and beyond any redundancy of the storage pool. For more information, see Additional replication.
Cache device usage
secondarycache
Inherited
Controls whether cache devices are used for the share. For more information, see Cache device usage.
Synchronous write bias
logbias
Inherited
Controls the behavior when servicing synchronous writes. For more information, see Synchronous write bias.
Prevent destruction
nodestroy
Inherited
Prevents shares or projects from being destroyed when set. For more information, see Prevent destruction.
Bandwidth Properties
Read limit
readlimit
--
Sets the maximum bytes per second that can be read from a LUN. M indicates megabytes and G indicates gigabytes. The default setting is unlimited, which provides no I/O throttling.
Write limit
writelimit
--
Sets the maximum bytes per second that can written to a LUN. M indicates megabytes and G indicates gigabytes. The default setting is unlimited, which provides no I/O throttling.
Effective read limit
effectivewritelimit
--
Read-only property that reports the lowest read limit for a LUN.
Effective write limit
effectivewritelimit
--
Read-only property that reports the lowest write limit for a LUN.
Custom Properties (Inherit from Project)
Schema
schema
--
Can be added as needed to attach user-defined tags to projects and shares. For more information, see Working with Schemas.
Protocols - Sharing Options
Online
status
LUN local
Indicates whether it is online or not.
Target group
targetgroup
LUN local
Shows groups of targets used when exporting a LUN.
Initiator group(s): LU number
initiatorgroup
LUN local
Shows groups of initiators that can access the LUN.
Protocols - Write Cache Behavior
Write cache enabled
writecache
LUN local
Controls whether the LUN caches writes.
Snapshots - Properties (Inherit from project)
Scheduled snapshot label
snaplabel
Inherited
Appends a user-defined label to each scheduled snapshot and is blank by default.
Snapshots - Snapshots
Name
--
--
Specifies the name of the snapshot.
Creation
--
--
Specifies the date and time when the snapshot is created.
Unique
--
--
Indicates the amount of unique space used by the snapshot.
Total
--
--
Indicates the total amount of space referenced by the snapshot.
Clones
--
--
Shows the number of clones of the snapshot.
Snapshots - Schedules
Frequency
frequency
Create time
Indicates how often the snapshot is taken.
Keep at most
keep
Create time
Controls the retention policy for snapshots.
Replication (Inherit from project)/Create New Actions
Target
target
Inherited
Identifies the replication target system.
Pool
pool
Inherited
Specifies the storage pool on the target where the project will be replicated.
Export data path
export_path
Inherited
Indicates the export data path.
Limit bandwidth
max_bandwidth
Inherited
Specifies a maximum speed for this replication update (in terms of amount of data transferred over the network per second).
Enable SSL-encryption
use_ssl
Inherited
Controls whether to encrypt data on the wire using SSL.
Disable compression
compression
Inherited
Controls whether the compression is enabled or disabled.
Include snapshot
include_snaps
Inherited
Controls whether replication updates include non-replication snapshots.
Retain user snapshots on target
retain_user_snaps_ on_target
Inherited
When set, keeps user-generated snapshots on the replication target.
Update frequency
continuous
Inherited
Controls whether this action is being replicated continuously or at manual or scheduled intervals.
Usage
Referenced data
space_data
Read-only
Shows the total amount of space referenced by the active share, independent of any snapshots.
Snapshot data
space_snapshots
Read-only
Shows the total amount of data currently held by all snapshots of the share.
Available data
space_available
Read-only
Shows any quotas on the share or project, or the absolute capacity of the pool.
Total space
space_total
Read-only
Shows the sum of referenced data, snapshot data, and unused reservation.