Dell DX6000 How to use

Simple Content Storage Protocol
(SCSP) Proxy Release Notes
Version 1.2.1

Simple Content Storage Protocol (SCSP) Proxy Release Notes:
Version 1.2.1
Copyright © 2011 Caringo, Inc.
All Rights Reserved.
No part of this document may be reproduced, transmitted, or transcribed without the written consent of Caringo, Inc.

Copyright © 2011 Caringo, Inc.
All rights reserved iii Version 1.2.1 January 2011
Table of Contents
1. Version 1.2.1 ....................................................................................................................... 1
1.1. Introduction ............................................................................................................... 1
1.2. Changes in Release 1.2.1 ......................................................................................... 1
1.3. Previous Features and Changes in Release 1.2 .......................................................... 1
1.4. Previous Changes in Release 1.1 .............................................................................. 1
1.4.1. Limitations of this Release .............................................................................. 1

Copyright © 2011 Caringo, Inc.
All rights reserved 1 Version 1.2.1 January 2011
Chapter 1. Version 1.2.1
1.1. Introduction
The DX Object Storage SCSP Proxy is a reverse proxy that provides an interface to the storage
cluster. The proxy accepts HTTP requests from the host network, forwards them to the internal
storage cluster, handles redirects transparently, and then supplies the response back to the
requestor.
Thank you for using the DX Storage SCSP Proxy 1.2.1 release!
1.2. Changes in Release 1.2.1
The SCSP Proxy now better handles a DX Storage cluster being restarted while the Proxy is
running. In previous releases, the Proxy sometimes logged multiple unhandled exceptions when
attempting to contact a cluster that had been restarted, generating an excessive number of log
messages.
1.3. Previous Features and Changes in Release 1.2
Release 1.2 Beta 1 includes the following changes:
• The SCSP Proxy intercepts GET / and HEAD / requests and responds with information it stores
internally about itself and about the cluster for which it serves as a forward proxy. Only GET / and
HEAD / requests result in this type of special handling by the Proxy.
• The Proxy now supports the use of named objects in DX Storage version 5.0 and later.
• The AggregateInfo method can be used as follows with named objects:
{uuid [mutable|immutable] | url-encoded-name}
1.4. Previous Changes in Release 1.1
Release 1.1 had the following changes:
• The SCSP Proxy installer and uninstaller now properly updates the hosts.cfg file after an
upgrade.
• A proxy memory issue that could consume increasing amounts of RAM has been resolved.
1.4.1. Limitations of this Release
These are the known issues and operational limitations that exist in this 1.2 release of the DX
Storage SCSP Proxy.
•Proxy connection timeout. If no DX Storage nodes are online at the time the Proxy is started, an
HTTP client cannot connect to Proxy. The Proxy returns either a 504 (Gateway Timeout) error or
a connection timeout.
To troubleshoot connectivity issues, do the following in the order shown:
1. Verify whether or not the Proxy is running.
Log in to the Proxy machine and enter the following command:

Copyright © 2011 Caringo, Inc.
All rights reserved 2 Version 1.2.1 January 2011
ps -ef | grep scspproxy
If the Proxy is not running, start it as discussed in the SCSP Proxy Overview. After you start
the Proxy, try to access the DX Storage cluster using your client application.
2. If the Proxy is running, verify that at least one DX Storage node is running and that there is a
route between the Proxy's network and the storage cluster's network.
•Time Format Validation The SCSP Proxy validation mode supports validation of lifepoint time
inputs in RFC 1123 format.
•Validation mode limitations. In validation mode, the following are not currently validated: admin
query argument, domain query argument, and Host header.