User Manual

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Thick. All storage space that you specify when you create a thick LUN is allocated
up front and the storage space is reserved on the volume. Snapshots, other LUNs,
and shares on the volume cannot consume storage space that is reserved. The size
of the LUN is reported as the total storage space that you specify when you create
the LUN. You cannot assign more storage space than the available nonreserved
storage space on the volume.
Default LUN Settings
The following table explains the default settings of a LUN. You can change these settings
when you create or change the LUN. The defaults depending on whether the LUN is
thick provisioned (the default), or you select thin provisioned.
Table 6. LUN default settings
Default (Thin Provision)Default (Thick Provision)Item
DisabledDisabledBit Rot Protection
(Copy-on-write)
DisabledDisabledCompression
NeverNeverSnapshot Schedule
AllowedAllowedSync Writes
Manage LUNs
From the Admin Page, you can create, modify, or delete a LUN.
Create a LUN
After you create a volume (see Create and Encrypt a Volume on page 35), you can create
LUNs on that volume.
Note: On ReadyNAS 102, 104, 202, 204, 212, 214, and 2120 systems, individual LUNs
cannot exceed 8 TB.
To create a LUN:
1. Log in to your ReadyNAS.
2. Select iSCSI.
A list of shares and LUNs on each volume displays.
Software Manual96LUNs
ReadyNAS OS 6.10