srp_tmo_valid (9) - Linux Manuals

srp_tmo_valid: check timeout combination validity

Command to display srp_tmo_valid manual in Linux: $ man 9 srp_tmo_valid

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.