srp_tmo_valid(9) - phpMan
SRP_TMO_VALID(9) SCSI mid layer SRP_TMO_VALID(9)
NAME
srp_tmo_valid - check timeout combination validity
SYNOPSIS
int srp_tmo_valid(int reconnect_delay, int fast_io_fail_tmo, int dev_loss_tmo);
ARGUMENTS
reconnect_delay
Reconnect delay in seconds.
fast_io_fail_tmo
Fast I/O fail timeout in seconds.
dev_loss_tmo
Device loss timeout in seconds.
DESCRIPTION
The combination of the timeout parameters must be such that SCSI commands are finished in
a reasonable time. Hence do not allow the fast I/O fail timeout to exceed
SCSI_DEVICE_BLOCK_MAX_TIMEOUT nor allow dev_loss_tmo to exceed that limit if failing I/O
fast has been disabled. Furthermore, these parameters must be such that multipath can
detect failed paths timely. Hence do not allow all three parameters to be disabled
simultaneously.
AUTHORS
James Bottomley <James.Bottomley AT hansenpartnership.com>
Author.
Rob Landley <rob AT landley.net>
Author.
COPYRIGHT
Kernel Hackers Manual 4.8. January 2017 SRP_TMO_VALID(9)
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