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StorNext User’s Guide 327
Appendix A
AOperating Guidelines
This appendix contains information pertinent to operating StorNext, as
well as some operating guidelines and limitations you should consider.
The Reserved Space Parameter
As of StorNext 3.0, the method of accounting for reserved space has
changed. The
MaxMBPerClientReserve parameter from the StorNext file
system configuration file (
/usr/cvfs/config/*.cfg) has been deprecated. All
values except
0 are ignored for this parameter. In addition, there is a new
parameter,
ReservedSpace.
The
ReservedSpace parameter lets the administrator control the use of
delayed allocations on clients.
ReservedSpace is a performance feature
that lets clients perform buffered writes on a file without first obtaining
real allocations from the metadata controller (MDC).
The
ReservedSpace parameter can be set to Yes or No: