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Required Adapter and Server OS Settings
110 Dell EMC Storage Compatibility Matrix for SC, PS, and FS Series Arrays | DSCM
MPIO Registry Settings: HKLM\SYSTEM\CurrentControlSet\Services\mpio\Parameters
Setting name
Description
Default
value
Recommended
value
RetryCount
This setting specifies the number
of times a failed I/O if the DSM
determines that a failing request
must be retried. This is invoked
when DsmInterpretError() returns
Retry = TRUE. The default
setting is 3.
3
no change
(FC or iSCSI
systems)
15 (front-end
SAS systems
only)
RetryInterval
This setting specifies the interval
of time (in seconds) after which a
failed request is retried (after the
DSM has decided so, and
assuming that the I/O has been
retried a fewer number of times
than RetryCount). This value is
specified in seconds. The default
is 1 second.
1
no change
DiskPathCheckDisabled
If the DiskPathCheckDisabled
key is set to zero, the MPIO
component creates a path
recovery worker.
0
no change
DiskPathCheckInterval
If the DiskPathCheckInterval key
is set to 0, or if the key does not
exist, the MPIO component uses
a default time interval. The
default time interval is half of the
time that is set in the
PDORemovePeriod parameter.
10
25