What is SAN? - Middleware News

storage area network (SAN) is an architecture to attach remote computer storage devices (such as disk arrays, tape libraries, and optical jukeboxes) to servers in such a way that the devices appear as locally attached to the operating system. Although the cost and complexity of SANs are dropping, they are still uncommon outside larger enterprises.

Network attached storage (NAS), in contrast to SAN, uses file-based protocols such as NFS or SMB/CIFS where it is clear that the storage is remote, and computers request a portion of an abstract file rather than a disk block.

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IBM Websphere MQ interview Questions Part 5

MQ Series: - It is an IBM web sphere product which is evolved in 1990’s. MQ series does transportation from one point to other. It is an EAI tool (Middle ware) VERSIONS:-5.0, 5.1, 5.3, 6.0, 7.0(new version). The currently using version is 6.2 Note: – MQ series supports more than 35+ operating systems. It is platform Independent. For every OS we have different MQ series software’s. But the functionality of MQ series Default path for installing MQ series is:- C: programfiles\BM\clipse\SDK30 C: programfiles\IBM\WebsphereMQ After installation it will create a group and user. Some middleware technologies are Tibco, SAP XI. MQ series deals with two things, they are OBJECTS, SERVICES. In OBJECTS we have • QUEUES • CHANNELS • PROCESS • AUTHENTICATION • QUERY MANAGER. In SERVICES we have LISTENERS. Objects: – objects are used to handle the transactions with the help of services. QUEUE MANAGER maintains all the objects and services. QUEUE: – it is a database structure

IBM Websphere MQ Reason code list / mq reason codes / websphere mq error codes / mq error messages

Reason code list ================= The following is a list of reason codes, in numeric order, providing detailed information to help you understand them, including: * An explanation of the circumstances that have caused the code to be raised * The associated completion code * Suggested programmer actions in response to the code * 0 (0000) (RC0): MQRC_NONE * 900 (0384) (RC900): MQRC_APPL_FIRST * 999 (03E7) (RC999): MQRC_APPL_LAST * 2001 (07D1) (RC2001): MQRC_ALIAS_BASE_Q_TYPE_ERROR * 2002 (07D2) (RC2002): MQRC_ALREADY_CONNECTED * 2003 (07D3) (RC2003): MQRC_BACKED_OUT * 2004 (07D4) (RC2004): MQRC_BUFFER_ERROR * 2005 (07D5) (RC2005): MQRC_BUFFER_LENGTH_ERROR * 2006 (07D6) (RC2006): MQRC_CHAR_ATTR_LENGTH_ERROR * 2007 (07D7) (RC2007): MQRC_CHAR_ATTRS_ERROR * 2008 (07D8) (RC2008): MQRC_CHAR_ATTRS_TOO_SHORT * 2009 (07D9) (RC2009): MQRC_CONNECTION_BROKEN * 2010 (07DA) (RC2010): MQRC_DATA_LENGTH_ERROR * 2011 (07DB) (RC2011): MQRC_DYNAMIC_Q_NAME_ERROR * 2012 (07DC) (RC201

IBM WebSphere MQ – Common install/uninstall issues for MQ Version on Windows - Middleware News

Creating a log file when you install or uninstall WebSphere MQ WebSphere MQ for Windows is installed using the Microsoft Installer (MSI). If you install the MQ server or client through launchpad , MQPARMS or setup.exe , then a log file is automatically generated in %temp% during installation. Alternatively you can supply parameters on the installation MSI command msiexec to generate a log file, or enable MSI logging system-wide (which generates MSI logs for all install and uninstall operations). If you uninstall through the Windows Add/Remove programs option, no log file is generated. You should either uninstall from the MSI command line and supply parameters to generate a log file, or enable MSI logging system-wide (which generates MSI logs for all install and uninstall operations). For details on how to enable MSI logging, see the following article in the WebSphere MQ product documentation: Advanced installation using msiexec For details on how to enable system-w

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