iscsi_targetextent_delete

Delete an iSCSI target-to-extent mapping

SERVERTruenas SOURCEspranab/truenas-mcp

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/spranab-truenas-mcp/iscsi-targetextent-delete.md

WHAT IT DOES

What iscsi_targetextent_delete does on Truenas

AI agents call iscsi_targetextent_delete to permanently remove resources in Truenas, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why iscsi_targetextent_delete is rated Critical

Deleting an iSCSI target-to-extent mapping is an irreversible action that severs the connection between a network target and its underlying storage resource. This cannot be undone without reconfiguration and could disrupt active iSCSI sessions, making storage unavailable to connected clients. This is a destructive operation with significant blast radius in a storage infrastructure context.

From the tool's definition Tool name contains 'delete' and description states 'Delete an iSCSI target-to-extent mapping' — this irreversibly removes the mapping between an iSCSI target and its storage extent.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs iscsi_targetextent_delete safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Truenas, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For iscsi_targetextent_delete, this is the rule to start with:

iscsi_targetextent_delete Hidden

iscsi_targetextent_delete is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "iscsi_targetextent_delete"
  ]
}

RESTRICT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Truenas, apply this rule, and every iscsi_targetextent_delete call is checked against it from then on.

FAQ

Questions about iscsi_targetextent_delete

What does the iscsi_targetextent_delete tool do? +

Delete an iSCSI target-to-extent mapping. It is categorised as a Destructive tool in the Truenas MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on iscsi_targetextent_delete? +

Register the Truenas MCP server in PolicyLayer and add a rule for iscsi_targetextent_delete: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Truenas. Nothing to install.

What risk level is iscsi_targetextent_delete? +

iscsi_targetextent_delete is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit iscsi_targetextent_delete? +

Yes. Add a rate_limit block to the iscsi_targetextent_delete rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block iscsi_targetextent_delete completely? +

Set action: deny in the PolicyLayer policy for iscsi_targetextent_delete. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides iscsi_targetextent_delete? +

iscsi_targetextent_delete is provided by the Truenas MCP server (spranab/truenas-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Truenas, and thousands of servers like it.

This server

All 279 Truenas tools → Critical-risk tools on this server →

Across the catalogue

sms_delete_message on Twilio SMS MCP Server →delete_snapshot on Why Did You Render →calendar_delete_event on Templonix Lite MCP Server →delete_addon_domain on cPanel MCP Server → All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern database agents →Blast radius →Tool call approval →