Space accounting mismatch in L2ARC/zpool
L2ARC vdev space usage statistics are calculated as the delta between the maximum and minimum vdev offset ever written to by the L2ARC fill thread, but do not inform the user of how much space in between these two offsets is actually taken up by cached buffers. This fix changes that so that vdev space usage stats on L2ARC devices accurately track the volume of buffers stored on them, allowing users to see the exact L2ARC usage in "zpool iostat -v".
Updated by Electric Monk over 5 years ago
- Status changed from New to Closed
- % Done changed from 90 to 100
commit 3038a2b421b40dc5ac11cd88423696618584f85a Author: Saso Kiselkov <email@example.com> Date: 2014-06-09T01:29:59.000Z 4897 Space accounting mismatch in L2ARC/zpool Reviewed by: Matthew Ahrens <firstname.lastname@example.org> Reviewed by: Boris Protopopov <email@example.com> Approved by: Dan McDonald <firstname.lastname@example.org>