Christophe,
This patch simply reports a PATH_DOWN status for paths to an EMC CLARiiON
LUNZ (or an unbound) block device since these paths cannot possibly be used
to issue I/O to such a device. In fact, allowing block I/O to a LUNZ
dm-multipath device will cause the process to hang until the no_path_retry
timeout is incurred. This is not desirable.
Thanks,
Ed
diff --git a/libcheckers/emc_clariion.c b/libcheckers/emc_clariion.c
index 462117b..a883e3d 100644
--- a/libcheckers/emc_clariion.c
+++ b/libcheckers/emc_clariion.c
@@ -89,14 +89,11 @@ int emc_clariion(struct checker * c)
return PATH_SHAKY;
}
-#if 0
- /* This is not actually an error as the failover to this group
- * _would_ bind the path */
- if ( /* LUN should at least be bound somewhere */
- sense_buffer[4] != 0x00) {
- return PATH_UP;
+ if ( /* LUN should at least be bound somewhere and not be LUNZ */
+ sense_buffer[4] == 0x00) {
+ MSG(c, "emc_clariion_checker: Logical Unit is unbound or
LUNZ");
+ return PATH_DOWN;
}
-#endif
/*
* store the LUN WWN there and compare that it indeed did not
--
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