DF-4714-A RESULT: write FAILED (correct behavior on a fixed kernel)
ta rc=0
===== PATCHED [2] DF-4715: two DOWN data sds, 32KB write (baseline: EIO + healthy s0 wrongly STALE)
0 bytes transferred in 0.000498 secs (0 bytes/sec)
-- post states (fixed: s0 must STAY UP):
S rv.p0.s0              State: up	PO:        0  B Size:       2048 kB
S rv.p0.s1              State: obsolete	PO:       16 kB Size:       2048 kB
S rv.p0.s2              State: obsolete	PO:       32 kB Size:       2048 kB
===== PATCHED [3] DF-4721: designed degraded write, s2 down (baseline: KERNEL PANIC)
S rv.p0.s0              State: up	PO:        0  B Size:       2048 kB
S rv.p0.s1              State: up	PO:       16 kB Size:       2048 kB
S rv.p0.s2              State: down	PO:       32 kB Size:       2048 kB
DF-4721: write OK (degraded write survived)
DF-4721 RESULT: readback matches, no panic
t21 rc=0
===== PATCHED [4] DF-4714-B: BOTH data sds REBORN, 32KB write (baseline: KERNEL PANIC)
write: Input/output error