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 Post subject: Re: NEW HDD
PostPosted: 07 Feb 2020, 09:09 
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Location: Симферополь, Крым
Как работает MAMR в HDD
https://habr.com/ru/post/469143/

HAMR Hard Disk Drive Demonstration
https://www.youtube.com/watch?v=m4NQJtS-Mbs

Western Digital Promises 40TB HDDs
https://www.youtube.com/watch?v=Vql9Kd-MvP8

WDC и Seagate рассматривают возможность выпуска жёстких дисков с 10 пластинами
http://chepa.net/all/2019/10/09/wdc-и-s ... ость-выпус


До конца года должны быть представлены накопители объемом 18 ТБ. В них будет использоваться разновидность технологии MAMR. Очередь HAMR наступит примерно на этапе 24-30 ТБ. Планы производителя простираются, по меньшей мере, до HDD объемом 50 ТБ.
https://www.playground.ru/misc/western_ ... _tb-665145


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 Post subject: Re: NEW HDD
PostPosted: 07 Feb 2020, 09:16 
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http://nerohelp.info/14633-mamr-novyy-p ... annyh.html


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 Post subject: Re: NEW HDD
PostPosted: 07 Feb 2020, 09:52 
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Joined: 01 Jan 1970, 00:00
Posts: 874
Мне вот интересно, как они проблему разогрева защитного покрытия будут решать. нагревая блины.
от малейшей вибрации головка вся измажется в лубрикаторе. )
А чтобы читать при такой плотности, головку по любому придется опускать ниже.
Лазер так вообще ограничит время использования таких дисков до не приличного значения.
Дохнут быстро лазерные диоды.


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 Post subject: Re: NEW HDD
PostPosted: 13 Feb 2020, 08:59 
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 Post subject: Re: NEW HDD
PostPosted: 22 Feb 2020, 14:37 
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Code: Select all

WD4601F4YZ-48L9YM0 FW:01.01A02 SN:WD-WCC131157876 WWN:50014EE25E61F569
Logical: Cyls 0, Heads 0, Sectors 0, LBA 7814037168, Logical:512, Physical:4096, 4,0Tb

PCB: 2060-771822-002 REV A

WDC ROM MODEL-ARCUS2PL-

Format version = 0x0002
Версия controller firmware = N0.10Q
Версия servo firmware = 01.02
Версия overley firmware = N0.16Q
Версия surface format = EX.003
Версия read channel firmware = Gx00023A
Количество пластин = 5
Количество физических головок = 10
Количество используемых головок = 10
Карта используемых головок = 
Тип накопителя = Enterprise 3.5 Inch
Количество зон = 61
Количество servo wedges = 384
Количество треков в SA = 256
Обороты двигателя = 7200
Количество треков в UA = 0
Cylinder skew = 60
Head skew = 120
Cluster Skew = 200
Code Residence = 5
Тип PCBA = Entek
Тип интерфейса = Serial ATA
Установленная память = 64Mb
 
Информация о комплектующих
Controller chip Vendor = 0x0000
Controller chip rev = 0x95B0
MicroP Vendor = 0x0000
MicroP Rev = 0x95B0
Channel Chip Vendor = 0x0099
Channel chip Rev = 0x0010
Preamp Vendor = 0x0001
Preamp Rev = 0x0003
Power IC vendor = 0x0000
Power IC Rev = 0x8020
 
Информация о ECC корекции
No. of interleaves in OTF ECC corr = 0
Number of bytes corrected by OTF = 0
Number of bytes corrected by FW burst corr = 0
No. of ecc bytes in read/write long sector = 0
 
Информация о формате
Tracks per inch (in KTPI) = 0
Area density = 800Gb
Drive Format Type = 0
 
Код производителя пластин - 5
Код производителя головок - E
 
Конфигурация накопителя
Format version = 0x0300
DCM Selection = 0x0001
cur_stroke = 0x0001
used_heads = 0000A
phy_heads = 0x000A
max_fmt_LBAs = 11208795696 - 5738Gb
max_target_LBAs = -1 - 0Gb
target_capacity = 0x0000
hq_capacity = 0x0001
max_HQ_LBAs = 11208795696 - 5738Gb
final_capacity = 0x0001
zone_count = 60
 
max_LBA_for_head_0 = 1047811968 - 536Gb
max_LBA_for_head_1 = 1192923648 - 610Gb
max_LBA_for_head_2 = 1102202640 - 564Gb
max_LBA_for_head_3 = 1167223680 - 597Gb
max_LBA_for_head_4 = 1154201328 - 590Gb
max_LBA_for_head_5 = 1128125376 - 577Gb
max_LBA_for_head_6 = 1086769152 - 556Gb
max_LBA_for_head_7 = 1115062704 - 570Gb
max_LBA_for_head_8 = 1140897744 - 584Gb
max_LBA_for_head_9 = 1073577456 - 549Gb

Code: Select all

-----------------------------------------------------
  1  3421     0     0     1     1  00:01:28  00:01:28
  2  34D1     0     0     1     1  09:11:22  09:11:22
  3  3514     0     0     1     1  00:20:52  00:20:52
  4  34D2     0     0     1     1  11:17:16  11:17:16
  5  34D3     0     0     1     1  00:01:46  00:01:46
  6  34D4     0     0     1     1  00:03:31  00:03:31
  7  34D4     0     0     1     1  00:03:36  00:03:36
  8  34D4     0     0     1     1  00:03:47  00:03:47
  9  34D6     0     0     1     1  00:02:44  00:02:44
 10  3305     0     0     1     1  00:00:37  00:00:37
 11    D5     0     0     1     1  00:08:13  00:08:13
 12    D4    D4     0     1     1  00:02:16  00:02:16
 13    D4    D4     0     1     1  00:03:23  00:03:23
 14    D4    D4     0     1     1  00:02:21  00:02:21
 15  3300     0     0     1     1  00:01:46  00:01:46
 16  3301     0     0     1     1  00:00:11  00:00:11
 17    B9    B9     0     1     1  00:00:05  00:00:05
 18  3402     0     0     1     1  00:03:36  00:03:36
 19    D7    D7     0     1     1  00:11:25  00:11:25
 20  3302     0     0     1     1  00:00:42  00:00:42
 21  3402     0     0     1     1  00:03:36  00:03:36
 22    B9    B9     0     1     1  00:03:40  00:03:40
 23    B9    B9     0     1     1  00:00:37  00:00:37
 24    BA    BA     0     1     1  00:06:34  00:06:34
 25    BA    BA     0     1     1  00:03:33  00:03:33
 26    B9    B9     0     1     1  00:03:39  00:03:39
 27    B9    B9     0     1     1  00:00:36  00:00:36
 28    BA    BA     0     1     1  00:06:45  00:06:45
 29    BA    BA     0     1     1  00:03:47  00:03:47
 30  3414     0     0     1     1  00:00:14  00:00:14
 31  3605     0     0     1     1  00:00:28  00:00:28
 32  3307     0     0     1     1  00:00:13  00:00:13
 33  3414     0     0     1     1  00:00:14  00:00:14
 34  3605     0     0     1     1  00:00:28  00:00:28
 35  3504     0     0     1     1  00:04:13  00:04:13
 36  3307     0     0     1     1  00:00:14  00:00:14
 37  3414     0     0     1     1  00:00:13  00:00:13
 38  3605     0     0     1     1  00:00:27  00:00:27
 39  3504     0     0     1     1  00:04:13  00:04:13
 40  3307     0     0     1     1  00:00:13  00:00:13
 41  3414     0     0     1     1  00:00:14  00:00:14
 42  3605     0     0     1     1  00:00:28  00:00:28
 43  3504     0     0     1     1  00:04:13  00:04:13
-----------------------------------------------------
Total Times (calculated)          22:29:49   22:29:49


B5 - WRRO Result
---------------------------------
Number of Records         : 15
Starting Time             : 00:02:45
Ending Time               : 21:06:48


Surface Log Errors
Head 0 = 542     (  0%), Tracks: 406    , Sectors: 136    , Max: 102397 
Head 1 = 883     (  0%), Tracks: 528    , Sectors: 355    , Max: 102397 
Head 2 = 452     (  0%), Tracks: 290    , Sectors: 162    , Max: 102397 
Head 3 = 1321    (  1%), Tracks: 814    , Sectors: 507    , Max: 102397 
Head 4 = 352     (  0%), Tracks: 290    , Sectors: 62     , Max: 102397 
Head 5 = 623     (  0%), Tracks: 350    , Sectors: 273    , Max: 102397 
Head 6 = 891     (  0%), Tracks: 795    , Sectors: 96     , Max: 102397 
Head 7 = 999     (  0%), Tracks: 580    , Sectors: 419    , Max: 102397 
Head 8 = 1118    (  1%), Tracks: 932    , Sectors: 186    , Max: 102397 
Head 9 = 820     (  0%), Tracks: 595    , Sectors: 225    , Max: 102397


P-List
Head 0 = 489    , Tracks:398    , Sectors:91    
Head 1 = 706    , Tracks:500    , Sectors:206   
Head 2 = 393    , Tracks:284    , Sectors:109   
Head 3 = 1100   , Tracks:755    , Sectors:345   
Head 4 = 320    , Tracks:278    , Sectors:42    
Head 5 = 521    , Tracks:335    , Sectors:186   
Head 6 = 777    , Tracks:691    , Sectors:86    
Head 7 = 850    , Tracks:568    , Sectors:282   
Head 8 = 999    , Tracks:875    , Sectors:124   
Head 9 = 724    , Tracks:569    , Sectors:155   
------------------------------------------------
All    = 6879   , Tracks:5253   , Sectors:1626  , Max 409593, 1%

Image

Code: Select all

**********************************************************
*  ArcusPL per spec 2096-772204 pre-released. ITR 29224 
**********************************************************
* ArcusPL
* =======
WD480?????-???????,   9376840368, 9376840368, 16, 63, 10,  1,  10, 1
WD470?????-???????,   9181489968, 9181489968, 16, 63, 10,  2,  10, 1
WD460?????-???????,   8986139568, 8986139568, 16, 63, 10,  4,  10, 1
WD450?????-???????,   8790789168, 8790789168, 16, 63, 10,  8,  10, 1
WD440?????-???????,   8595438768, 8595438768, 16, 63, 10, 16,  10, 1
WD430?????-???????,   8400088368, 8400088368, 16, 63, 10, 32,  10, 1
*
WD430?????-???????,   8400088368, 8400088368, 16, 63, 9,   1,  10, 1
*                                 
* Development Only                
* =================               
WD920?????-???????,   1797244848, 1797244848, 16, 63,  2,  1,  10, 1
WD880?????-???????,   1719104688, 1719104688, 16, 63,  2,  2,  10, 1
WD840?????-???????,   1640964528, 1640964528, 16, 63,  2,  4,  10, 1
WD800?????-???????,   1562824368, 1562824368, 16, 63,  2,  8,  10, 1
WD760?????-???????,   1484684208, 1484684208, 16, 63,  2, 16,  10, 1
WD720?????-???????,   1406544048, 1406544048, 16, 63,  2, 32,  10, 1
*


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 Post subject: Re: NEW HDD
PostPosted: 25 Feb 2020, 08:20 
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Joined: 12 Nov 2019, 12:40
Posts: 224
Location: Симферополь, Крым
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 Post subject: Re: NEW HDD
PostPosted: 25 Feb 2020, 08:34 
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Joined: 01 Jan 1970, 00:00
Posts: 874
Платка 810003 ?
плохо видно.
Что за семейство интересно.
По идее должен быть SATA аналог.


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 Post subject: Re: NEW HDD
PostPosted: 25 Feb 2020, 08:55 
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Joined: 12 Nov 2019, 12:40
Posts: 224
Location: Симферополь, Крым
'Charger' 2060-810003-001 REV P1


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 Post subject: Re: NEW HDD
PostPosted: 16 Apr 2020, 06:55 
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Joined: 12 Nov 2019, 12:40
Posts: 224
Location: Симферополь, Крым
Western Digital использует дешевую технологию записи, из-за которой диски «тормозят» и отказываются вставать в RAID

Некоторые HDD Seagate и Western Digital тайно используют SMR


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 Post subject: Re: NEW HDD
PostPosted: 12 May 2020, 19:31 
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Joined: 12 Nov 2019, 12:40
Posts: 224
Location: Симферополь, Крым
Технология MAMR компании Western Digital повысит надёжность процесса записи


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