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Under article 25 of MiFIR and RTS 24 MiFID II, operators of trading venues will be required to collect and maintain for at least five years the relevant data relating to all orders in financial instruments which are advertised through their systems. Within the five year period, competent authorities may request these records of orders and transactions maintained by investment firms and trading venues.  

For smart usage of disk space on fast storage, old data could be moved to a different place, e.g. to a network drive. FIXEdge configuration parameters allow configure proper archiving and rotation strategy (see How to configure logging and logs rotation in FIXEdgefor more information);.

Common recommendations

The following items are to be considered for determining required disk space:

  1. FIXEdge binaries and configuration (~1 GB)
  2. FIX session logs with FIX messages
    Depends on the maximum expected number of messages per day multiplied by the average size of messages;.
  3. Application logs (tens - hundreds MB per day):
    1. application status and errors,
    2. sessions statuses changes,
    3. validation errors,
    4. monitoring notes.
    Sessions and messages flow with issues generate more logs than the issues-free flow. 
  4. Reserve extra space for core files (few GB)

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