KERNSAFE - iSCSI SAN Software and Storage Virtualization

Open Storage Management > Targets, select a target, and click Properties to open the Target Settings window.

1. General

The General tab lets you review or modify the target IQN, the authorization method, and several access-control options.

Authorization Method selects how initiators are authenticated. For a detailed explanation of each mode, see Authorization Mechanism.

Global Authorization applies the server-wide authorization policy to this target.
Concurrent Access should be enabled only when a clustered workload or another application layer is responsible for coordinating shared writes.
Report Readonly makes the target appear as read-only when the initiator does not have write permission.

2. Portal

Use the Portal tab to define the IPv4 portal addresses exposed by this target. You can add new addresses, reorder them, or remove entries from the list. Initiators attempt the portals in the displayed order.

3. Portal V6

Use the Portal V6 tab to define the IPv6 portal addresses exposed by this target. The layout and controls are identical to the IPv4 Portal tab.

4. Virtual Write

The Virtual Write tab is used for initiators that are granted Virtual Write access.

Enable Virtual Write turns the feature on for this target.
Working folder specifies where redirected client writes are stored.
Data quota defines the maximum amount of redirected data in megabytes. A value of 0 means no quota limit.

Two persistence modes are available:

Volatile: All redirected changes are discarded when the initiator logs out.
Persistent: Redirected changes are preserved for initiators that connect with Virtual Write access.

5. Cache

Enable cache on this device to use RAM-based caching for the target.

Cache size in MBs sets the cache capacity.
Cache refresh interval in ms defines how often the cache is refreshed.
Cache granularity should normally match the file-system allocation unit or application I/O pattern.
After changing cache settings, re-enable the target for the changes to take effect.

6. PM-Cache

The PM-Cache tab adds persistent or SSD-backed caching for the target.

Cache size in MBs, Cache refresh interval in ms, and Cache granularity control the capacity and behavior of the cache.
Cache Type determines whether the device is used as read cache, read-persistent cache, or a read/write buffer.
Data folder specifies where PM-Cache metadata or cache data is stored.
After changing PM-Cache settings, re-enable the target so the new configuration is applied.