How many indexes can/should one indexer support? Per CPU core?

[twinspop]

Based on retention needs, daily volume and available disk I've broken my group's index into 5 main indexes plus 2 summary indexes. We share the 2 server index cluster with other groups, and if they use the same methodology, we could be looking at 30 or more indexes. Is this a problem? Is there some tuning I should be doing to make it perform better?

The indexers are 32-core, 64 GB beasties with SAN disk.

[dmaislin_splunk · Accepted solution]

Not really about number of indexes, more about amount of data and performance of the indexer:

http://docs.splunk.com/Documentation/Splunk/latest/Admin/Advancedindexingstrategy

http://docs.splunk.com/Documentation/Splunk/latest/installation/capacityplanningforalargersplunkdepl...