Seagate ST39103LC User's Guide download pdf (Page 64)

shows that every device’s path 0 (those corresponding to device

filenames beginning

c7) have a Status designation of Bad.

Figure 5-6 setsp -a Output after the Failed Path Is Detected

Recovering from a Failure

Path failures generate a lot of output, resulting primarily from the

disk driver’s attempts at error recovery.

Finally, when the cable is plugged back in, SVA Path will detect

that the primary I/O path for

spd0 is back to normal and redirect

data over that path (Figure 5-7, “The Failback Event”).

Figure 5-7 The Failback Event

The other paths are returned to Status Good, as well.

The output of

setsp -a will return to normal (Figure 5-1, on

page 51).

# setsp -a

===============================================================================

spd Path/disk Status Primary Exclude Buf Balance RtrCnt RtrDly FailBack

===============================================================================

0 c6t0d0 Good X 32 0 20 3000 1

c7t0d0 Good

spd0 = c86t0d0 ID = "STK 9500 0000000010390000"

===============================================================================

1 c6t0d1 Bad X 32 0 20 3000 1

c7t0d1 Good

spd1 = c86t0d1 ID = "STK 9500 0000000010390001"

===============================================================================

2 c6t0d2 Bad X 32 0 20 3000 1

c7t0d2 Good

spd2 = c86t0d2 ID = "STK 9500 0000000010390002"

===============================================================================

Jun 30 15:29:31 n4000 vmunix: spd1: path 0 ok

Jun 30 15:29:31 n4000 vmunix: spd2: path 0 ok

Jun 30 15:29:31 n4000 vmunix: spd3: path 0 ok

Jun 30 15:29:31 n4000 vmunix: spd1: path failover from 1 to 0.

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Seagate ST39103LC User's Guide Page 64