diff --git a/faults.go b/faults.go
new file mode 100644
index 000000000..670de8793
--- /dev/null
+++ b/faults.go
@@ -0,0 +1,48 @@
+package sectorstorage
+
+import (
+	"context"
+
+	"golang.org/x/xerrors"
+
+	"github.com/filecoin-project/sector-storage/stores"
+	"github.com/filecoin-project/specs-actors/actors/abi"
+)
+
+// TODO: Track things more actively
+type FaultTracker interface {
+	CheckProvable(ctx context.Context, spt abi.RegisteredProof, sectors []abi.SectorID) ([]abi.SectorID, error)
+}
+
+// Returns unprovable sectors
+func (m *Manager) CheckProvable(ctx context.Context, spt abi.RegisteredProof, sectors []abi.SectorID) ([]abi.SectorID, error) {
+	var bad []abi.SectorID
+
+	// TODO: More better checks
+	for _, sector := range sectors {
+		err := func() error {
+			lp, _, done, err := m.localStore.AcquireSector(ctx, sector, spt, stores.FTSealed|stores.FTCache, stores.FTNone, false)
+			if err != nil {
+				return xerrors.Errorf("acquire sector in checkProvable: %w", err)
+			}
+			defer done()
+
+			if lp.Sealed == "" || lp.Cache == "" {
+				log.Warnw("CheckProvable Sector FAULT: cache an/or sealed paths not found", "sector", sector, "sealed", lp.Sealed, "cache", lp.Cache)
+				bad = append(bad, sector)
+				return nil
+			}
+
+			// must be fine
+
+			return nil
+		}()
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return bad, nil
+}
+
+var _ FaultTracker = &Manager{}
diff --git a/manager.go b/manager.go
index 065370ed6..629d672bd 100644
--- a/manager.go
+++ b/manager.go
@@ -50,6 +50,7 @@ type SectorManager interface {
 
 	ffiwrapper.StorageSealer
 	storage.Prover
+	FaultTracker
 }
 
 type WorkerID uint64
diff --git a/mock/mock.go b/mock/mock.go
index 1e3985be0..05e424307 100644
--- a/mock/mock.go
+++ b/mock/mock.go
@@ -288,6 +288,10 @@ func (mgr *SectorMgr) FinalizeSector(context.Context, abi.SectorID) error {
 	return nil
 }
 
+func (mgr *SectorMgr) CheckProvable(context.Context, abi.RegisteredProof, []abi.SectorID) ([]abi.SectorID, error) {
+	return nil, nil
+}
+
 func (m mockVerif) VerifySeal(svi abi.SealVerifyInfo) (bool, error) {
 	if len(svi.OnChain.Proof) != 32 { // Real ones are longer, but this should be fine
 		return false, nil
diff --git a/resources.go b/resources.go
index 23512b85c..7c281eda0 100644
--- a/resources.go
+++ b/resources.go
@@ -201,16 +201,16 @@ var ResourceTable = map[sealtasks.TaskType]map[abi.RegisteredProof]Resources{
 			Threads: -1,
 			CanGPU:  true,
 
-			BaseMinMemory: 128 << 30, // params
+			BaseMinMemory: 64 << 30, // params
 		},
 		abi.RegisteredProof_StackedDRG32GiBSeal: Resources{
-			MaxMemory: 130 << 30,
+			MaxMemory: 150 << 30, // TODO: ~30G of this should really be BaseMaxMemory
 			MinMemory: 30 << 30,
 
 			Threads: -1,
 			CanGPU:  true,
 
-			BaseMinMemory: 64 << 30, // params
+			BaseMinMemory: 32 << 30, // params
 		},
 		abi.RegisteredProof_StackedDRG512MiBSeal: Resources{
 			MaxMemory: 3 << 29, // 1.5G