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RN214 OS6.10.10 Snapshots
I found this post from 2021, but I am not seeing what I expect from snapshots.
I have had this config for a long time, let's assume >2Y. I expected a monthly snapshot to be retained, as the daily>weekly>monthly promoted snapshots are cleared out - specifically the last bullet point above.
However, what I see is snapshots back to the start of Aug'26:
I am a bit confused that promoted monthly snapshots are not being retained; I have 5.75TB / 14.54TB free, and my NAS is powered on 24/7 - although I do have disk spindown enabled.
Am I misunderstanding the way promoted snapshots work?
9 Replies
I analysed the NAS status.log and found the NAS simply starts deleting snapshots for no apparent reason!
Some snapshots have been present for >600 days. I have attached a file which shows every snapshot created/deleted, along with some stats like how old it made it. I also tried to attach the original log file, but this forum wouldn't accept (maybe size of post?). Some points:
- Snapshot #11
- created 2023-10-30, deleted 2025-07-05, age 614 days
- Snapshot #120:
- Created 2025-08-17, deleted 2026-04-25, age 275 days
- Both times, snapshots were completly removed over a period of a few weeks
I am open to sharing any more info to help better understand what is going on, but right now I'm thinking smart snapshot manageent is too random to be reliable.
Processed file showing snapshot history/info (it seems I can't insert the whole file, so here are some snips):
Column summary: Date Snapshot created date C# Created snapshot # D# Deleted snapshot # Depth Current number of snapshots Log/created date C# / D# Date of snapshot Depth days Current snapshots # 2023-10-09 00:00:17 C 1 1 oldest: 0 [1] 2023-10-12 00:00:18 C 2 2 oldest: 3 [1, 2] 2023-10-14 00:00:19 C 3 3 oldest: 5 [1, 2, 3] 2023-10-15 00:00:22 C 4 4 oldest: 6 [1, 2, 3, 4] 2023-10-17 00:00:21 C 5 5 oldest: 8 [1, 2, 3, 4, 5] 2023-10-18 00:00:22 C 6 6 oldest: 9 [1, 2, 3, 4, 5, 6] 2023-10-19 00:00:25 C 7 7 oldest: 10 [1, 2, 3, 4, 5, 6, 7] 2023-10-20 00:00:26 C 8 8 oldest: 11 [1, 2, 3, 4, 5, 6, 7, 8] 2023-10-25 00:00:24 C 9 9 oldest: 16 [1, 2, 3, 4, 5, 6, 7, 8, 9] 2023-10-26 00:00:24 C 10 10 oldest: 17 [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] 2023-10-30 00:00:23 C 11 11 oldest: 21 [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11] 2023-11-05 00:00:17 C 12 12 oldest: 27 [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12] 2023-11-05 23:53:59 D 1 2023-10-09 00:00:17 age: 28 11 oldest: 25 [2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12] 2023-11-06 00:00:17 C 13 12 oldest: 25 [2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13] 2023-11-10 00:01:13 C 14 13 oldest: 29 [2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14] 2023-11-10 00:54:27 D 2 2023-10-12 00:00:18 age: 29 12 oldest: 27 [3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14] 2023-11-12 10:55:21 D 4 2023-10-15 00:00:22 age: 28 11 oldest: 29 [3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14] 2023-11-14 07:55:55 D 5 2023-10-17 00:00:21 age: 28 10 oldest: 31 [3, 6, 7, 8, 9, 10, 11, 12, 13, 14] 2023-11-16 20:56:03 D 7 2023-10-19 00:00:25 age: 28 9 oldest: 33 [3, 6, 8, 9, 10, 11, 12, 13, 14] 2023-11-16 20:56:03 D 6 2023-10-18 00:00:22 age: 29 8 oldest: 33 [3, 8, 9, 10, 11, 12, 13, 14] 2023-11-17 08:56:10 D 8 2023-10-20 00:00:26 age: 28 7 oldest: 34 [3, 9, 10, 11, 12, 13, 14] 2023-11-19 00:00:07 C 15 8 oldest: 36 [3, 9, 10, 11, 12, 13, 14, 15] 2023-11-20 00:00:09 C 16 9 oldest: 37 [3, 9, 10, 11, 12, 13, 14, 15, 16] 2023-11-24 21:51:36 D 10 2023-10-26 00:00:24 age: 29 8 oldest: 41 [3, 9, 11, 12, 13, 14, 15, 16] 2023-11-24 21:51:36 D 9 2023-10-25 00:00:24 age: 30 7 oldest: 41 [3, 11, 12, 13, 14, 15, 16]but right now I'm thinking smart snapshot manageent is too random to be reliable.
FWIW, my custom settings are working as intended.
2023-12-08 23:56:44 D 3 2023-10-14 00:00:19 age: 56 8 oldest: 39 [11, 15, 16, 17, 18, 19, 20, 21] 2023-12-09 00:00:27 C 22 9 oldest: 40 [11, 15, 16, 17, 18, 19, 20, 21, 22] 2023-12-17 08:59:33 D 15 2023-11-19 00:00:07 age: 28 8 oldest: 48 [11, 16, 17, 18, 19, 20, 21, 22] 2023-12-18 12:00:18 D 16 2023-11-20 00:00:09 age: 28 7 oldest: 49 [11, 17, 18, 19, 20, 21, 22] 2023-12-21 00:00:20 C 23 8 oldest: 51 [11, 17, 18, 19, 20, 21, 22, 23] 2023-12-24 00:00:18 C 24 9 oldest: 54 [11, 17, 18, 19, 20, 21, 22, 23, 24] 2023-12-28 00:00:17 C 25 10 oldest: 58 [11, 17, 18, 19, 20, 21, 22, 23, 24, 25] 2023-12-29 00:00:24 C 26 11 oldest: 60 [11, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26] 2023-12-31 00:00:44 C 27 12 oldest: 62 [11, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27] 2023-12-31 00:06:02 D 19 2023-12-03 00:00:59 age: 28 11 oldest: 62 [11, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27] 2024-01-03 09:06:23 D 21 2023-12-06 00:00:29 age: 28 10 oldest: 65 [11, 17, 18, 20, 22, 23, 24, 25, 26, 27] 2024-01-03 09:06:23 D 20 2023-12-05 00:00:28 age: 29 9 oldest: 65 [11, 17, 18, 22, 23, 24, 25, 26, 27]...
2025-04-16 00:00:27 C107 21 oldest: 533 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 104, 105, 106, 107] 2025-04-18 00:00:29 C108 22 oldest: 535 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 104, 105, 106, 107, 108] 2025-04-20 00:00:30 C109 23 oldest: 537 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 104, 105, 106, 107, 108, 109] 2025-04-21 00:00:02 C110 24 oldest: 538 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 104, 105, 106, 107, 108, 109, 110] 2025-04-22 00:00:04 C111 25 oldest: 539 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 104, 105, 106, 107, 108, 109, 110, 111] 2025-04-23 00:00:06 C112 26 oldest: 540 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112] 2025-04-26 00:00:05 C113 27 oldest: 543 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113] 2025-04-27 00:00:36 C114 28 oldest: 544 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114] 2025-05-04 00:00:02 C115 29 oldest: 551 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115] 2025-05-04 00:27:20 D104 2025-04-06 00:00:55 age: 28 28 oldest: 551 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115] 2025-05-05 09:28:08 D105 2025-04-07 00:00:28 age: 28 27 oldest: 553 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115] 2025-05-22 10:54:04 D112 2025-04-23 00:00:06 age: 29 26 oldest: 570 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 106, 107, 108, 109, 110, 111, 113, 114, 115] 2025-05-22 10:54:05 D111 2025-04-22 00:00:04 age: 30 25 oldest: 570 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 106, 107, 108, 109, 110, 113, 114, 115] 2025-05-22 10:54:05 D110 2025-04-21 00:00:02 age: 31 24 oldest: 570 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 106, 107, 108, 109, 113, 114, 115] 2025-05-22 10:54:05 D109 2025-04-20 00:00:30 age: 32 23 oldest: 570 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 106, 107, 108, 113, 114, 115] 2025-05-22 10:54:06 D108 2025-04-18 00:00:29 age: 34 22 oldest: 570 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 106, 107, 113, 114, 115] 2025-05-22 10:54:06 D107 2025-04-16 00:00:27 age: 36 21 oldest: 570 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 106, 113, 114, 115] 2025-05-22 10:54:07 D106 2025-04-09 00:00:29 age: 43 20 oldest: 570 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 113, 114, 115] 2025-06-03 13:56:47 D115 2025-05-04 00:00:02 age: 30 19 oldest: 582 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 113, 114] 2025-06-03 14:56:55 D114 2025-04-27 00:00:36 age: 37 18 oldest: 582 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103, 113] 2025-06-21 13:00:14 D113 2025-04-26 00:00:05 age: 56 17 oldest: 600 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101, 103] 2025-06-21 14:00:22 D103 2025-03-19 00:00:03 age: 94 16 oldest: 600 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95, 101] 2025-06-21 15:00:31 D101 2025-02-28 00:00:21 age: 113 15 oldest: 600 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87, 95] 2025-06-21 17:00:39 D 95 2025-01-31 00:00:14 age: 141 14 oldest: 600 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82, 87] 2025-06-24 14:50:28 D 87 2024-11-30 00:00:20 age: 206 13 oldest: 603 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76, 82] 2025-06-25 06:50:37 D 82 2024-10-25 00:00:15 age: 243 12 oldest: 604 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73, 76] 2025-06-25 07:50:45 D 76 2024-09-15 00:00:26 age: 283 11 oldest: 604 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72, 73] 2025-06-25 08:50:53 D 73 2024-08-26 00:00:22 age: 303 10 oldest: 604 [11, 18, 27, 31, 33, 35, 40, 48, 60, 72] 2025-06-25 09:51:01 D 72 2024-07-29 00:00:15 age: 331 9 oldest: 604 [11, 18, 27, 31, 33, 35, 40, 48, 60] 2025-06-26 12:51:09 D 60 2024-06-30 00:00:17 age: 361 8 oldest: 605 [11, 18, 27, 31, 33, 35, 40, 48] 2025-06-26 13:51:17 D 48 2024-05-31 00:00:06 age: 391 7 oldest: 605 [11, 18, 27, 31, 33, 35, 40] 2025-06-27 15:51:26 D 40 2024-04-20 00:00:16 age: 433 6 oldest: 606 [11, 18, 27, 31, 33, 35] 2025-06-28 17:51:34 D 35 2024-03-28 00:00:08 age: 457 5 oldest: 607 [11, 18, 27, 31, 33] 2025-06-29 20:51:42 D 33 2024-02-24 00:00:09 age: 491 4 oldest: 608 [11, 18, 27, 31] 2025-06-30 09:51:51 D 31 2024-01-25 00:00:15 age: 522 3 oldest: 609 [11, 18, 27] 2025-06-30 10:51:59 D 27 2023-12-31 00:00:44 age: 547 2 oldest: 609 [11, 18] 2025-06-30 14:52:07 D 18 2023-11-27 00:00:05 age: 581 1 oldest: 609 [11] 2025-07-05 10:52:16 D 11 2023-10-30 00:00:23 age: 614 0 no active snapshots2025-07-05 10:52:16 D 11 2023-10-30 00:00:23 age: 614 0 no active snapshots 2025-07-06 00:00:24 C116 1 oldest: 0 [116] 2025-07-07 00:00:24 C117 2 oldest: 1 [116, 117] 2025-07-16 00:00:25 C118 3 oldest: 10 [116, 117, 118] 2025-07-20 00:00:54 C119 4 oldest: 14 [116, 117, 118, 119] 2025-07-24 00:00:22 C120 5 oldest: 17 [116, 117, 118, 119, 120] 2025-08-01 00:00:15 C121 6 oldest: 25 [116, 117, 118, 119, 120, 121] 2025-08-03 12:16:03 D116 2025-07-06 00:00:24 age: 28 5 oldest: 27 [117, 118, 119, 120, 121] 2025-08-04 10:16:19 D117 2025-07-07 00:00:24 age: 28 4 oldest: 19 [118, 119, 120, 121] 2025-08-13 13:18:41 D118 2025-07-16 00:00:25 age: 28 3 oldest: 24 [119, 120, 121] 2025-08-17 18:19:59 D119 2025-07-20 00:00:54 age: 28 2 oldest: 24 [120, 121] 2025-08-21 00:00:05 C122 3 oldest: 27 [120, 121, 122] 2025-08-22 00:00:05 C123 4 oldest: 28 [120, 121, 122, 123] 2025-08-28 00:00:01 C124 5 oldest: 34 [120, 121, 122, 123, 124] 2025-08-29 15:55:48 D121 2025-08-01 00:00:15 age: 28 4 oldest: 36 [120, 122, 123, 124] 2025-09-18 10:57:33 D122 2025-08-21 00:00:05 age: 28 3 oldest: 56 [120, 123, 124] 2025-09-19 08:57:49 D123 2025-08-22 00:00:05 age: 28 2 oldest: 57 [120, 124] 2025-09-20 00:00:25 C125 3 oldest: 58 [120, 124, 125] 2025-09-21 00:00:56 C126 4 oldest: 59 [120, 124, 125, 126] 2025-09-24 00:00:08 C127 5 oldest: 61 [120, 124, 125, 126, 127] 2025-10-12 00:00:46 C128 6 oldest: 80 [120, 124, 125, 126, 127, 128] 2025-10-14 00:00:15 C129 7 oldest: 81 [120, 124, 125, 126, 127, 128, 129] 2025-10-19 12:27:02 D126 2025-09-21 00:00:56 age: 28 6 oldest: 87 [120, 124, 125, 127, 128, 129] 2025-10-24 00:00:10 C130 7 oldest: 91 [120, 124, 125, 127, 128, 129, 130] 2025-10-30 00:00:10 C131 8 oldest: 98 [120, 124, 125, 127, 128, 129, 130, 131] 2025-11-01 00:00:09 C132 9 oldest: 100 [120, 124, 125, 127, 128, 129, 130, 131, 132] 2025-11-02 00:00:44 C133 10 oldest: 101 [120, 124, 125, 127, 128, 129, 130, 131, 132, 133] 2025-11-09 14:35:19 D128 2025-10-12 00:00:46 age: 28 9 oldest: 108 [120, 124, 125, 127, 129, 130, 131, 132, 133] 2025-11-11 13:35:28 D129 2025-10-14 00:00:15 age: 28 8 oldest: 110 [120, 124, 125, 127, 130, 131, 132, 133] 2025-11-15 11:36:25 D125 2025-09-20 00:00:25 age: 56 7 oldest: 114 [120, 124, 127, 130, 131, 132, 133] 2025-11-21 17:38:25 D130 2025-10-24 00:00:10 age: 28 6 oldest: 120 [120, 124, 127, 131, 132, 133] 2025-11-22 00:00:27 C134 7 oldest: 121 [120, 124, 127, 131, 132, 133, 134] 2025-11-27 00:00:24 C135 8 oldest: 126 [120, 124, 127, 131, 132, 133, 134, 135] 2025-12-01 14:29:57 D133 2025-11-02 00:00:44 age: 29 7 oldest: 130 [120, 124, 127, 131, 132, 134, 135] 2025-12-04 00:00:02 C136 8 oldest: 133 [120, 124, 127, 131, 132, 134, 135, 136] 2025-12-05 00:00:02 C137 9 oldest: 134 [120, 124, 127, 131, 132, 134, 135, 136, 137] 2025-12-07 00:01:01 C138 10 oldest: 136 [120, 124, 127, 131, 132, 134, 135, 136, 137, 138] 2025-12-15 00:00:22 C139 11 oldest: 144 [120, 124, 127, 131, 132, 134, 135, 136, 137, 138, 139] 2025-12-16 00:00:23 C140 12 oldest: 145 [120, 124, 127, 131, 132, 134, 135, 136, 137, 138, 139, 140] 2025-12-24 00:00:47 C141 13 oldest: 153 [120, 124, 127, 131, 132, 134, 135, 136, 137, 138, 139, 140, 141] 2025-12-25 00:00:19 C142 14 oldest: 154 [120, 124, 127, 131, 132, 134, 135, 136, 137, 138, 139, 140, 141, 142] 2025-12-27 00:00:20 C143 15 oldest: 156 [120, 124, 127, 131, 132, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143] 2025-12-27 00:53:56 D132 2025-11-01 00:00:09 age: 56 14 oldest: 156 [120, 124, 127, 131, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143] 2026-01-03 17:54:29 D137 2025-12-05 00:00:02 age: 29 13 oldest: 163 [120, 124, 127, 131, 134, 135, 136, 138, 139, 140, 141, 142, 143] 2026-01-03 17:54:29 D136 2025-12-04 00:00:02 age: 30 12 oldest: 163 [120, 124, 127, 131, 134, 135, 138, 139, 140, 141, 142, 143] 2026-01-05 00:00:12 C144 13 oldest: 165 [120, 124, 127, 131, 134, 135, 138, 139, 140, 141, 142, 143, 144] 2026-01-05 00:54:38 D138 2025-12-07 00:01:01 age: 29 12 oldest: 165 [120, 124, 127, 131, 134, 135, 139, 140, 141, 142, 143, 144] 2026-01-09 00:00:10 C145 13 oldest: 169 [120, 124, 127, 131, 134, 135, 139, 140, 141, 142, 143, 144, 145] 2026-01-11 00:00:11 C146 14 oldest: 171 [120, 124, 127, 131, 134, 135, 139, 140, 141, 142, 143, 144, 145, 146] 2026-01-12 12:57:55 D139 2025-12-15 00:00:22 age: 28 13 oldest: 172 [120, 124, 127, 131, 134, 135, 140, 141, 142, 143, 144, 145, 146] 2026-01-14 23:58:04 D140 2025-12-16 00:00:23 age: 29 12 oldest: 175 [120, 124, 127, 131, 134, 135, 141, 142, 143, 144, 145, 146] 2026-01-15 00:00:07 C147 13 oldest: 175 [120, 124, 127, 131, 134, 135, 141, 142, 143, 144, 145, 146, 147] 2026-01-20 12:58:30 D134 2025-11-22 00:00:27 age: 59 12 oldest: 180 [120, 124, 127, 131, 135, 141, 142, 143, 144, 145, 146, 147] 2026-01-21 15:58:46 D141 2025-12-24 00:00:47 age: 28 11 oldest: 181 [120, 124, 127, 131, 135, 142, 143, 144, 145, 146, 147] 2026-01-22 12:58:54 D142 2025-12-25 00:00:19 age: 28 10 oldest: 182 [120, 124, 127, 131, 135, 143, 144, 145, 146, 147] 2026-02-07 16:05:45 D145 2026-01-09 00:00:10 age: 29 9 oldest: 198 [120, 124, 127, 131, 135, 143, 144, 146, 147] 2026-02-07 16:05:46 D144 2026-01-05 00:00:12 age: 33 8 oldest: 198 [120, 124, 127, 131, 135, 143, 146, 147] 2026-02-11 09:06:27 D146 2026-01-11 00:00:11 age: 31 7 oldest: 202 [120, 124, 127, 131, 135, 143, 147] 2026-02-12 10:06:59 D147 2026-01-15 00:00:07 age: 28 6 oldest: 203 [120, 124, 127, 131, 135, 143] 2026-02-15 00:00:44 C148 7 oldest: 206 [120, 124, 127, 131, 135, 143, 148] 2026-02-21 00:00:09 C149 8 oldest: 212 [120, 124, 127, 131, 135, 143, 148, 149] 2026-02-23 00:00:13 C150 9 oldest: 214 [120, 124, 127, 131, 135, 143, 148, 149, 150] 2026-02-26 00:00:11 C151 10 oldest: 217 [120, 124, 127, 131, 135, 143, 148, 149, 150, 151] 2026-03-01 00:00:43 C152 11 oldest: 220 [120, 124, 127, 131, 135, 143, 148, 149, 150, 151, 152] 2026-03-15 12:40:56 D148 2026-02-15 00:00:44 age: 28 10 oldest: 234 [120, 124, 127, 131, 135, 143, 149, 150, 151, 152] 2026-03-25 17:42:07 D150 2026-02-23 00:00:13 age: 30 9 oldest: 244 [120, 124, 127, 131, 135, 143, 149, 151, 152] 2026-03-29 14:42:38 D152 2026-03-01 00:00:43 age: 28 8 oldest: 248 [120, 124, 127, 131, 135, 143, 149, 151] 2026-03-30 16:42:46 D151 2026-02-26 00:00:11 age: 32 7 oldest: 249 [120, 124, 127, 131, 135, 143, 149] 2026-04-18 10:44:21 D149 2026-02-21 00:00:09 age: 56 6 oldest: 268 [120, 124, 127, 131, 135, 143] 2026-04-19 11:44:29 D143 2025-12-27 00:00:20 age: 113 5 oldest: 269 [120, 124, 127, 131, 135] 2026-04-22 09:44:37 D135 2025-11-27 00:00:24 age: 146 4 oldest: 272 [120, 124, 127, 131] 2026-04-24 10:44:46 D131 2025-10-30 00:00:10 age: 176 3 oldest: 274 [120, 124, 127] 2026-04-24 20:44:54 D127 2025-09-24 00:00:08 age: 212 2 oldest: 274 [120, 124] 2026-04-25 10:45:02 D124 2025-08-28 00:00:01 age: 240 1 oldest: 275 [120] 2026-04-25 11:45:10 D120 2025-07-24 00:00:22 age: 275 0 no active snapshots 2026-05-03 00:00:52 C153 1 oldest: 0 [153] 2026-05-11 00:00:15 C154 2 oldest: 7 [153, 154] 2026-05-17 00:00:14 C155 3 oldest: 13 [153, 154, 155] 2026-05-18 00:00:15 C156 4 oldest: 14 [153, 154, 155, 156] 2026-05-31 01:19:44 D153 2026-05-03 00:00:52 age: 28 3 oldest: 20 [154, 155, 156]
- Snapshot #11
Check the snapshot pruning setting in the volume settings. While you have enough free space for the default setting, perhaps you inadvertanty changed it.
Also, current snapshot size is only 627MB, so I'm not sure it's a size problem. Maybe quantity limit?
volume settings>snapshot pruning is set to 90%.
Which is the default, and it seems unlikely that you'd have gotten anywhere close to that that theshold at the beginning of August.
Also, current snapshot size is only 627MB, so I'm not sure it's a size problem. Maybe quantity limit?
That shouldn't matter.
I expected a monthly snapshot to be retained, as the daily>weekly>monthly promoted snapshots are cleared out - specifically the last bullet point above.
Have you downloaded the log zip file? There could be useful clues in there.
As an aside, I personally don't recommend "smart" snapshots (and won't use them myself). The reason is that the the monthly snapshots are retained for ever - which will eventually result in a full volume. Instead I set a reasonable snapshot retention limit, and only write snapshots when something in the share has change.
Thanks, volume settings>snapshot pruning is set to 90%.
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