What is/are: Communication Channels: Quotas and File Block

Introduction

This article provides a detailed view of the communication channels used in quota monitoring and file block operations. It also details the authentication and encryption methods used for each channel.

Communication Channels

quotacomms

1. NSS Quota Service <> NSS Core Service
Data Type: Software license data (confirming license compliance).
Channel & Encryption: Named Pipe.
Authentication: None.

2. NSS Quota Service <> Local Registry
Data Type: Configuration information, software settings.
Channel & Encryption: Win32 APIs.
Authentication: Windows Integrated Authentication.
Note: Service account must have access to local registry.

3. NSS Quota Client <> NSS Quota Service
Data Type: Current state of quota and file block operations (configured policies, quota status, connections, etc.).
Channel & Encryption: TCP/IP port 5503.
Authentication: Windows Integrated Authentication. Internal permissions check of current user.

4. NSS Quota Service <> NSS QS COM API
Data Type: Current state of quota and file block operations, commands to set or modify policies
Channel & Encryption: TCP/IP port 5503.
Authentication: Windows Integrated Authentication. Internal permissions check of current user.

5. NSS Quota Client <> Local Registry
Data Type: Software client settings.
Channel & Encryption: Win32 APIs.
Authentication: Windows Integrated Authentication.
Note: Service account must have access to local registry.

6. NSS Quota Service <> NetApp Clustered Data ONTAP
Data Type: Current quota usage levels and file system changes.
Channel & Encryption: HTTP, HTTPS (administrative channel). TCP/IP, TLS/SSL (FPolicy locking/blocking channel).
Authentication: SSL Certificate Authentication (when HTTPS and SSL are used).

7. NSS Quota Service <> NetApp 7-Mode
Data Type: Current quota usage levels and file system changes.
Channel & Encryption: HTTP, HTTPS (administrative channel). MSRPC (FPolicy locking/blocking channel).
Authentication: SSL Certificate Authentication (when HTTPS is used).

8. NSS Quota Service <> EMC VNX
Data Type: Current quota usage levels and file system changes.
Channel & Encryption: MSRPC (CEPA interface).
Authentication: GUID-based registration.

9. NSS Quota Service <> EMC Isilon
Data Type: Current quota usage levels and file system changes.
Channel & Encryption: SMB (SMB Encryption can be configured externally to NSS).
Authentication: Windows Integrated Authentication.

10. NSS Quota Service <> HDS HNAS  (alpha)
Data Type: Current quota usage levels and file system changes.
Channel & Encryption: MSRPC.
Authentication: Bespoke HDS authentication when registering for change notifications (‘hnas_nss_response’ interface).

11. NSS Quota Service <> EMC VNXe
Data Type: Current quota usage levels and file system changes.
Channel & Encryption: SMB (SMB Encryption can be configured externally to NSS).
Authentication: Windows Integrated Authentication.

12. NSS Quota Service <> SAN/DAS (local installation)

Data Type: Current quota usage levels and file system changes.
Channel & Encryption: SMB (SMB Encryption can be configured externally to NSS), locking through kernel-mode filter driver.
Authentication: Windows Integrated Authentication.
Note: For SAN/DAS management NSS should be installed locally on the Windows file servers.

ADDITIONAL RESOURCES

  • KB3040 What is/are: Runtime Architecture: Quotas and File Block
  • KB Article: 3042

    Updated: 8/24/2016

    • Category
      • Reference
    • Affected versions
      • NSS 9.5
      • NSS 9.6

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