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-rw-r--r--man/man8/zdb.85
1 files changed, 4 insertions, 1 deletions
diff --git a/man/man8/zdb.8 b/man/man8/zdb.8
index 3915be3f8..01ad95b3e 100644
--- a/man/man8/zdb.8
+++ b/man/man8/zdb.8
@@ -216,7 +216,10 @@ Read the vdev labels and L2ARC header from the specified device.
.Nm Fl l
will return 0 if valid label was found, 1 if error occurred, and 2 if no valid
labels were found. The presence of L2ARC header is indicated by a specific
-sequence (L2ARC_DEV_HDR_MAGIC). Each unique configuration is displayed only
+sequence (L2ARC_DEV_HDR_MAGIC). If there is an accounting error in the size
+or the number of L2ARC log blocks
+.Nm Fl l
+will return 1. Each unique configuration is displayed only
once.
.It Fl ll Ar device
In addition display label space usage stats. If a valid L2ARC header was found