Please take all columns into account when reading the table. Pay attention on the number of tested samples and power-on days. Simultaneous high values of both MTBF and errors are possible if only rare drives in the subset encounter errors.

Days - avg. days per sample, Err - avg. errors per sample, MTBF - avg. MTBF in years per sample.

MFG	Model	Size	Samples	Days	Err	MTBF
HGST	HUS724030ALA640	3 TB	1	2737	0	7.50
HGST	HUS724020ALA640	2 TB	10	2348	0	6.43
HGST	HTE721010A9E630	1 TB	3	1849	0	5.07
HGST	HUH728060ALE600	6 TB	1	1820	0	4.99
HGST	HDN724040ALE640	4 TB	17	2042	48	4.81
HGST	HDN724030ALE640	3 TB	7	1737	0	4.76
HGST	HTS725050A7E635...	500 GB	1	1625	0	4.45
HGST	HUS726T4TALA6L4	4 TB	8	1557	0	4.27
HGST	HUS726040ALN610	4 TB	2	1239	0	3.40
HGST	HDN728080ALE604	8 TB	7	1182	0	3.24
HGST	HUS724040ALA640	4 TB	5	1058	0	2.90
HGST	HDN726040ALE614	4 TB	4	1032	0	2.83
HGST	HDN726060ALE614	6 TB	2	1449	1	2.65
HGST	HDN721010ALE604	10 TB	3	916	0	2.51
HGST	HTE725032A7E630	320 GB	5	1224	12	2.43
HGST	HUS726020ALA610	2 TB	2	822	0	2.25
HGST	HUH728080ALE600	8 TB	1	777	0	2.13
HGST	HUS726T4TALN6L4	4 TB	2	754	0	2.07
HGST	HUS722T2TALA600	2 TB	1	700	0	1.92
HGST	HUS726040ALE610	4 TB	3	1030	464	1.68
HGST	HUS726T4TALA6L1	4 TB	2	574	0	1.57
HGST	HTE545032A7E380	320 GB	3	521	0	1.43
HGST	HTS721010A9E630	1 TB	27	575	199	1.35
HGST	HUS728T8TALE6L4	8 TB	9	462	0	1.27
HGST	HTS541010A9E680	1 TB	15	527	275	1.25
HGST	HUS722T2TALA604	2 TB	6	505	3	1.13
HGST	HUS726020ALE610	2 TB	2	380	0	1.04
HGST	HTS725032A7E630	320 GB	8	696	18	0.99
HGST	HTS545032A7E680	320 GB	1	321	0	0.88
HGST	HTS545050A7E680	500 GB	12	370	86	0.88
HGST	HTS725050A7E630	500 GB	22	576	570	0.52
HGST	HTS541010B7E610	1 TB	6	177	0	0.49
HGST	HMS5C4040BLE640	4 TB	9	176	0	0.48
HGST	HUS722T1TALA604	1 TB	6	169	0	0.47
HGST	HTS541075A7E630	752 GB	3	775	694	0.42
HGST	HTS545050A7E660	500 GB	1	773	6	0.30
HGST	HUH721010ALE604	10 TB	2	102	0	0.28
HGST	HUS722T1TALA600	1 TB	1	80	0	0.22
HGST	HUS726060ALE610	6 TB	3	48	0	0.13
HGST	HTS545032A7E380	320 GB	4	402	12	0.11
HGST	HUS726T6TALE6L1	6 TB	2	21	0	0.06
HGST	HUS726060ALE614	6 TB	4	17	0	0.05
HGST	HUS726040ALA610	4 TB	1	1058	78	0.04
HGST	HTS725025A7E630	250 GB	1	43	20	0.01
HGST	HTS541075A9E680	752 GB	1	2760	2177	0.00
HGST	HTS541010A7E630	1 TB	1	236	1023	0.00
HGST	HMS5C4040ALE640	4 TB	10	0	0	0.00

HDD by Family

Days - avg. days per sample, Err - avg. errors per sample, MTBF - avg. MTBF in years per sample.

MFG	Family	Models	Samples	Days	Err	MTBF
HGST	Ultrastar 7K4000	3	16	1969	0	5.40
HGST	Deskstar NAS	6	40	1623	21	4.05
HGST	Ultrastar He8	2	2	1299	0	3.56
HGST	Ultrastar DC HC310	3	12	1137	0	3.12
HGST	Travelstar 7K1000	2	30	703	179	1.72
HGST	Ultrastar HC310/320	1	9	462	0	1.27
HGST	Ultrastar 7K6000	8	19	566	78	1.22
HGST	Travelstar 5K1000	2	16	667	394	1.17
HGST	Travelstar Z7K500	5	37	703	345	0.97
HGST	Ultrastar 7K2	4	14	345	2	0.84
HGST	Travelstar Z5K500	5	21	415	52	0.78
HGST	Travelstar Z5K1000	3	10	362	311	0.42
HGST	Ultrastar He10	1	2	102	0	0.28
HGST	MegaScale 4000	2	19	83	0	0.23

README.md

HGST Hard Drives

Contents

HDD by Model

HDD by Family