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Use of ir_disable:1 parametre in HPSM

Super Advisor

Use of ir_disable:1 parametre in HPSM

Hi Experts,


Please suggest if we set "ir_disable:1" parametre in sm.ini.

what will be the affect on SM Application performance,  functionality & daily operations.


Thnaks in advance.



Honored Contributor

Re: Use of ir_disable:1 parametre in HPSM


It will enhance the performance in term of while updating any record or adding.
But you can search the records by 'Text search' ,you could not be to retrieve any search using array filed or so.

Assign Kudo, if found post useful and mark it accepted if solves the issue.
HPE Expert

Re: Use of ir_disable:1 parametre in HPSM

As Piku explained ir_disable allows you to disable the IR keys on your existing HP Service Manager system, so that the upgrade process runs faster.

Here is some more info about IR Expert:

IR Expert is an intelligent, concept-based information retrieval engine that searches the HP Service Manager database for similar or related information based on a natural language query. For example, instead of relying on exactly matching keywords to find similar incidents in the Incident Management database, Service Manager uses the IR Expert engine and the description of an incident to locate similar incidents. IR Expert assigns a probability of relevance to the query results, and ranks them by relevance to the original query.

The Knowledge Base tool is a front-end to IR Expert. The Knowledge Base form enables users with specific search and operator restrictions to access solutions, specific databases or files, and other relevant data without compromising system security.

IR Expert has lexical analysis for Chinese and Korean.

If you are an IR Expert administrator, it is important to know that IR Expert relies heavily upon shared memory.

In HP Service Manager, all IR index data is in the scirexpert table. If necessary, Service Manager creates scirexpert automatically the first time you run an IR Regen.

More information about the other IR parameters can be found on the SM helpserver under section:

System Configuration Parameters -> Information Retrieval (IR) expert parameters

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Super Advisor

Re: Use of ir_disable:1 parametre in HPSM

Hi Piku / Viprom,


Thanks for your suggestion & sharing th eknowledge.


Overall what i come to know if we set parametre ir_disable:1 in sm.ini it will affect "Text Search" we will not able to do.


Please correct if i am wrong.


Thanks in Advance.



Trusted Contributor

Re: Use of ir_disable:1 parametre in HPSM



i can confirm that "Text Search" is not working after setting ir_disable:1.

But speed increased significant.


We try to use the new SOLR KM Engine to compensate the missing "Text Search" feature.

Occasional Advisor

Re: Use of ir_disable:1 parametre in HPSM


Yes text search will not work in any way, neither in js or from anywhere else.

Also you can try to increase the shared memory so that more of space can be reserved to IR search after enabling it.

Honored Contributor

Re: Use of ir_disable:1 parametre in HPSM

You should use your Knowledge Management SOLR like Hans mentioned. This technology replaces the old IR Expert. KM covers all the modules and main fields that is important for searching. You can always add more fields for it to search if you want. The new KM is sizeable and more efficient. It's not free and OOTB like IR Expert but I think these days, most SM contracts comes with KM included. You can continue to search while the master KM server gets reindex and KM search load balancing are some of the advantages. KM has it's own problems like attachments types but once you set it up properly and it's running, it's nice.


If you retain the IR Expert, you could end up like a few of my customers who never archive their records and ended up with millions of scirexpert records and when it comes to IR Expert reindexing, it takes forever and you start to encounter more frequent IR Expert index corruptions.