MSDP thresholds best practices

Hi All!

 

We have two NBU 7.6.0.4 servers with MSDP. Each server has 14TB attached. I noticed that 1.4TB are reservered. Please see crcontrol --dsstat:

D:\Program Files\Veritas\pdde>crcontrol --dsstat

************ Data Store statistics ************
Data storage      Raw    Size   Used   Avail  Use%
                  14.0T  12.6T  10.2T   2.4T  81%

Number of containers             : 84821
Average container size           : 130942704 bytes (124.88MB)
Space allocated for containers   : 11106691158478 bytes (10.10TB)
Reserved space                   : 1540376379392 bytes (1.40TB)
Reserved space percentage        : 10.0%

Use "--dsstat 1" to get more accurate statistics

 

This reserve is controled by LowSpaceThreshold variable from contentrouter.cfg:

; If the free disk space falls below the low space threshold on the storage,
; queue and/or database partitions, the CR will no longer permit store tasks
; to add new data to the CR and will issue an error to the SPA.
; A value higher than the WarningSpaceThreshold will be treated as equal to
; the WarningSpaceThreshold.
; The default value is 10%. Value 0 disables this threshold (NOT recommended).
; Possible suffixes are:
; b, Kib (1024), Mib, Gib, Tib, Pib, Eib, Kb (1000), Mb, Gb, Tb, Pb, Eb, %.
; @restart
LowSpaceThreshold=10%

 

I think that 1.4TB reserve is redundant.

Could you please advise what is the best practice here? Can I safely decrease it to e.g.3% ?

 

Thank you in advance.