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Hello,
My server operations team is standing up a set of Splunk servers for me to set up a distributed Splunk deployment. FYI - we are keeping a separate path for storage of indexed data. They want to know how much space should be provisioned just to support the base Splunk software, exclusive of the indexed data.
I did some research into Splunk reference hardware. For search heads, I see that the recommendation is:
2 x 300GB, 10,000 RPM SAS hard disks, configured in RAID 1
Is 300 GB worth of space the rule of thumb I should be using for $SPLUNK_HOME?
Thanks!
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The 300GB would be recommended by Search Heads with large number of user/user searches (required for dispatch directory and configs mostly). Other components (Intermediate Forwarders/Deployment Servers/SHC Deployers) would not have that much space requirements and probably 100 GB would be more that sufficient. For indexers also, excluding the $Splunk_Home/var/lib (index storage), 100 GB would be more than sufficient.
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For indexed data, you will want to calculate you anticipated capacity. Start by determining how much you will index each day. Then take into account your retention settings.
For instance, let's say that you will be ingesting a 1 GB of data each day and that you want a retention period of 2 years. This means that in two years you will be storing 730GB of data.
I would get some estimates on what you expect/ need and go from there.
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Splunk has good compression capability, avg 50%
also things get another angle with ES or ITSI or any major use of DM Acceleration
in general, this is the basic formulas Splunk uses, frmo docs:
http://docs.splunk.com/Documentation/Splunk/7.1.2/Capacity/HowSplunkcalculatesdiskstorage
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The 300GB would be recommended by Search Heads with large number of user/user searches (required for dispatch directory and configs mostly). Other components (Intermediate Forwarders/Deployment Servers/SHC Deployers) would not have that much space requirements and probably 100 GB would be more that sufficient. For indexers also, excluding the $Splunk_Home/var/lib (index storage), 100 GB would be more than sufficient.
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Thank you! That is very helpful....
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@vanderaj2 if it answers your question, kindly accept the answer for others to see it worked for you
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