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NAS及芯片-日新月異篇

(2015-09-25 19:11:59) 下一個

1. NAS h/w

HP新品:HPE ProLiant MicroServer Gen10,AMD x3216雙核1.6-3G DDR4 1.6G/x3421四核2.1-3.4G DDR4-2.4G自調頻,沒有ECC/熱拆拔的PC(其實有raid熱插拔就不能用了)。除非你必須DIY,用它就好。

1.1 WD DX4000 (x86)

該機在11年11月推出目前仍在賣,1.8G Atom D525主板,DDR3 800M SODIMM 2GB(可擴4GB,PC3-10666),Raid 1或5 RE4-GP黑盤,Giga Ethernet/電源均為雙口支持容錯,雙USB3支持USB UPS,普通電源19V6.3A,準備用DELL 19.5V代用。主板比Minit-ITX窄,SATA背板通過PCie槽垂直連去主板。

軟件是Windows server 2008R2 essential支持remote desktop,DLNA,速度是Synology 712/411的3倍。但是rebuild要花數天,且Raid5不保證完整性。待機功耗41W,啟動時4盤同轉65W,關機6W。

http://www.storagereview.com/western_digital_sentinel_dx4000_review http://www.wdc.com/wdproducts/library/UM/ENG/4779-705064.pdf http://www.wdc.com/en/products/products.aspx?id=610#Tab6 http://support.wdc.com/downloads.aspx?DL 

Server recovery ISO: 下載9.54GB的ISO,用DVD仿真軟件打開運行,或寫入雙層DVD光盤啟動。

DX4000 Sentinel Storage Server更新

1.主機LCD會顯示“SOFTWARE UPDATE AVAILABLE will display on the LCD screen. ”2.由PC通過登錄到NAS main dashboard,選Monitor|Software Update tab 3. 選Check for Update|Download & Install button或Update from file再打開預先下載在USB中的。zip文件(USB要插在NAS上),Cont,等6-10分鍾LCD顯示NAS名和IP即可。Cloudme Server backup: 這是Win 2008R2的plugin,下載解壓為.wssx直接在NAS上運行。

僅下述硬盤可用:http://support.wdc.com/KnowledgeBase/answer.aspx?ID=9443 3倍普通黑盤價!http://techoddsandends.com/2012/09/02/hacking-the-western-digital-sentinel-dx4000/

1.2. MYAPM (Arm64) X-C1 Mini-ITX

64bit ARM 8-core, Mini-ITX,4SATA,2 DDR3 1600 ECC,3x1G + 1x10G lan, PCIe3x8, 2xUSB3, . 可裝Ubuntu:https://wiki.ubuntu.com/ARM/Server/Install/Mustang 

上圖是revA普通版,pro版4xSata靠邊;新板4xSata居中,15.10最新板tag是3PCB-×即revC的第二改版。http://f2.svbtle.com/arm-64-bit-walkthrough-of-the-mustang https://www.apm.com/docs/APM883208-X1_X-C1_GSG_2014_0001.pdf

安裝Ubuntu 14.04和按廠家編譯Linux沒問題,ZFS沒有,除非自己按源碼編譯給Arm。

其它鏈接:https://www.google.com/search?q=mustang+arm64 

1.3. 主板(Mini-ITX為主)

1.3.1 DDR3

chipset difference: https://www.pugetsystems.com/labs/articles/Z170-H170-H110-B170-Q150-Q170---What-is-the-Difference-635/ 

ASRock C2550D4I 帶4核C2550 $270最低$250,8xsATA3+2xsATA2,4xECC DDR3,超過HP Microserver Gen8,保修3年。 E3C224D4I-14S帶4xsATA3+8xsas2, 170x214mm。E3C224D2I類似,2x8GB ECC,無12V直供, $170。MT-C224, LGA1150(i3-4160T/i5-4590T),4x8GB ECC,4sATA3+2sATA2,12V直供,尺寸是198x170 $199, 缺貨。這類主板監控都是AST2300帶顯示。4K回放需要帶GPU的CPU有HDMI輸出的主板。

ASRock J3455-ITXIntel J3455 quad core (upto2.3GHz)支持H264/VP8codec。空冷 ,SODIMM DDR3/3L 1866,4sATA3,板後/中均有USB3。網口可用USB3加或2230尺寸M.2如Intel 7260NGW 802.11ac。CPU比Microserver gen10 x3216慢,後者位於i3-4170與i3-4350之間。https://www.cpu-monkey.com/en/compare_cpu-intel_celeron_j3455-662-vs-intel_core_i3_4150-361 Gigabyte ga-j3455n-d3h: 與上板差別是雙1G網口PCIx1少M.2和PCIe,US沒賣,ebay有歐貨。

Biotech  A68N-5600, CPU A10 4655 20W, 比5745稍慢,比舊貨WA68N-5545/磐正A5545NX7快,都是四核AMD,5545CPU不如J3455,但GPU快,AES快太多了。DDR3@1333最大32GB,4sATA3,USB3,1G,PCIe2x16。板載CPU/常規DDR3/4sATA性價比最高。一家兩名分打國外內市場,評價好。

AD2550R/U3S32帶雙核D2550,2xDDR1066 SODIMM最大4GB,2xsATA3+5xsATA2,性能隻有J3455的25%http://blog.brianmoses.net/categories/nas-build/

Asrock E350M1 Mini-ITX, AMD 1.6G dual CPU, DDR3-1066 upto 16G, PCIex16, 10x USB 2.0, 4x SATA600, eSATA, Gigabit LAN and a Realtek ALC892 audio chip, DVI/HDMI 1080P support BD play, VGA 2K, AMD Radeon HD 6310/DX11 GPU, 22W idle/31W) .http://asrock.pc.cdn.bitgravity.com/Manual/E350M1.pdf? 

1.3.2 DDR4 

16G DIMM https://www.newegg.com/Product/Product.aspx?Item=N82E16820232258&ignorebbr=1  15-15-15-35 1.2V比別的稍好。

1151 CPU: https://www.asrock.com/mb/Intel/H270M-ITXac/index.asp#CPU

Family Number Core↑ Frequency Cache Power
Celeron G3930T(S0) Kaby Lake 2.7GHz 2MB 35W
Pentium G4560T(S0) Kaby Lake 2.9GHz 3MB 35W
Pentium G4600T(S0) Kaby Lake 3.0GHz 3MB 35W
Core i3 i3-7100T(S0) Kaby Lake 3.4GHz 3MB 35W
Core i3 i3-7300T(S0) Kaby Lake 3.5GHz 4MB 35W
Core i5 i5-7400T(B0) Kaby Lake 2.4GHz 6MB 35W
Core i5 i5-7500T(B0) Kaby Lake 2.7GHz 6MB 35W
Core i5 i5-7600T(B0) Kaby Lake 2.8GHz 6MB 35W
Core i7 i7-7700T(B0) Kaby Lake 2.9GHz 8MB 35W

7代KabyLake前是6代Skylake, 35W的有G39/44/4500T,61/63/64/65/66/6700T.

最新NAS:https://www.chiphell.com/thread-1711829-1-1.html ZFS有兩種Cache:讀L2ARC和寫SLOG,但擴容不便。家用用960 EVO做L2ARC即可。CPU風扇GELID的Silent 5,機箱2xNoctua的NF F-12 IndustrialPPC-2000 PWM。

舊的E3C232D2I,6SATA(0與M.2 2230共用),236芯片支持8SATA和寬PCIe,但Mini-ITX沒用到。無ECC的板有ASRock H270M-ITX/acGA-H270N-WIFI都支持ECC DIMM(nonECC mode),Gen6/7 CPU支持RAM速度是2133/2400。M.2+6sATA(),2x1G網,802.11ac+BlueTooth,板內2xUSB3。缺點無DP(用電視盒子播放就沒關係;Ga-H270M-DS3H mATX有DP),單DIMM需放B槽靠外。為支持6盤可用Samsung NVMe M.2 PCIe G3x4盤或板內USB3盤。CPU可選i3-7100T(2/4帶顯,$117)或G4560T($64,稍慢少AVX2指令集)。

08/18: http://cpu.userbenchmark.com/Compare/Intel-Pentium-G4560-vs-Intel-Core-i3-8100/3892vs3942 含可用主板,但未包括新的如Z370M-ITXac,配新i7100 gen8,快但65W。舊版配45W G4560T為好,前幾個月還缺貨價高。M.2可用Intel 760P,這樣總共可用6xSATA。配置類似的BM-HDV是7.2x9.6,ASUS P10S-M是9.6x9.6帶8xSATA,2x1G,支持ECC但限於5代CPU。

1.4 簡單的硬盤方案:a)Dell Laptop加CD bay硬盤成雙盤。b)E係列加Dock即有2x1G網口和2xeSATA2,再加GP-EXP-2ESATA expresscard to SATA2(Sil3132,HDD速度與E6410 eSATA2相近)共四口。順便說一下E4200/6410的eSATA不帶電源,Dock的eSATA(實際是eSATAp)帶。有的laptop eSATA可經port multiplier(PMP)轉多盤但速度下降,E6410不支持PMP。

FL1100是2016年底出的PCIe轉4xUSB3.0的片子,也用於3xUSB3的expresscard。該芯片單口速率是380Mbps顯然是USB2速率兼容USB3規程而已,故不建議expresscard轉接的USB3。USB3接口盤Unitek Y-3036用ASM1153E芯片還不錯,用S3710 800G SSD順序讀寫可達420及400MB/s。

還有人用router的USB或刷DD-Wrt/Asus用其USB接硬盤,不過我的6300V2原廠固件的USB3極不可靠。

2. NAS s/w

https://msdn.itellyou.cn 

必讀:http://www.freenas.org/freenas-vs-ubuntu-with-zfs-on-linux/  

http://storageroot.com/articles/nas4free-freenas-amahi-openmediavault 

非專業可用AMAHI,這個也不錯:http://napp-it.org/features_en.html

Windows 2012 R2有存儲池類Raid,加NFS/SMB支持Linux分區,注意NFS比SMB快。

2.1 FreeNAS

FreeNAS用ZFS不推薦硬Raid。FreeNAS和基於Linux的NAS,都推薦用8-16G U盤裝係統,硬盤與係統獨立,這是比Windows好的地方。但是,Windows的軟件尤其是媒體應用更方便,對PC硬件的支持更好。

FreeNAS基於FreeBSD,軟Raid用ZFS。據說V7(NAS4Free)用於BT比V8好。基於Ubuntu的可以用ZFS或MDADM:http://storageroot.com/articles/nas4free-freenas-amahi-openmediavault 

2.2 Ubuntu NAS

http://wiki.dreamrunner.org/public_html/Misc/Software/Ubuntu-NAS.html 

https://www.sysgeek.cn/ubuntu-zfs-filesystem/ 

old: https://docs.google.com/document/d/1hFw1YnH9s-1Y9M4VPLgPOOjm1iH6PJOHefg5NhGC4oA/edit?pli=1 

Ubuntu server不裝xserver就不需要圖形界麵。以下服務:NFS=Windows 文件共享, Apache=http服務器, Mysql=數據庫服務器, SSH=遠程管理, uShare=多媒體upnp服務器/DLNA, transmission=bt下載, webmin=web端管理, acpid=直接按電源鈕關機。

2.3 其它

OpenMediaVault:https://post.smzdm.com/p/524816/ 

Solaris+Napp-It: http://www.experts-exchange.com/Networking/Network_Management/Network_Operations/Q_27710888.html 

http://lifehacker.com/turn-an-old-computer-into-a-do-anything-home-server-wit-510023147 

http://lifehacker.com/turn-an-old-pc-into-a-nas-vpn-media-streamer-and-mor-1516484110 

小結:新版FreeNAS和NAS4Free都支持ZFS。Ubuntu的ZFS發表的是ZFS做Root,當然也可能做成類似NAS。我試過了下遇到些問題,覺得還不夠可靠。

國內windows服務器軟件:http://www.phoenixp2p.com/cn/xapp.htm 

3. Disk and Raid

3.0 SnapRaid http://www.songming.me/snapraid-compare.html https://www.snapraid.it/faq 

優點:

  • 支持1-6個盤的冗餘級別,校驗盤越多,可以承受損壞的硬盤越多。
  • 支持完整性巡檢,可以修複硬盤上靜默錯誤(silent
    corruption)。
  • 如果故障盤太多而無法恢複,則隻會丟失故障盤上的數據,不影響其他硬盤中的數據。
  • 可以在一定程度上恢複誤刪除的文件。
  • 可以直接添加已有的數據盤,無需格式化,也不會丟失已有數據。
  • 硬盤可以不同大小。
  • 可以添加文件夾,而不一定是整塊硬盤。
  • 可以隨時添加硬盤。
  • 不會更改你的數據,可以隨時停止使用SnapRAID,無需重新格式化或移動數據。
  • 支持單個硬盤休眠。訪問文件時,隻需要喚醒文件所在的磁盤。(當然更新冗餘數據時需要喚醒所有硬盤)
  • 支持windows和linux

缺點:

  • 快照式冗餘,而非實時,需要手動更新冗餘數據。(當然也可以寫批處理,定時運行)
  • 需要額外提供校驗盤(當然,幾乎所有的raid都需要),最好是空盤。(也可以不空)
  • 各個盤的文件係統獨立,管理起來稍繁瑣。
  • 不分條數據。而使用傳統RAID,可以通過分條來增加讀寫速度。
  • 不支持實時恢複。而使用傳統RAID,當硬盤發生故障時,不必停止工作。
  • 隻能恢複有限數量的硬盤。多一個校驗盤則增加一個冗餘額度。
  • 隻保存文件,時間戳,符號鏈接和硬鏈接。權限,所有權和擴展屬性不會保存。
  • 最新版隻有命令行,沒有官方GUI界麵。有第三方GUI界麵Elucidate,更新速度較慢。

Parity+Data disks can be 1+4, 2+14, 3+21, etc. OS shall be Raid1. 在運行第一個“同步”之前,用memtest86這樣的程序檢查你的RAM內存。SnapRAID時數據丟失的最常見原因是RAM壞!經常運行“同步”命令。從一天一次到一周一次。每周運行一次“scrub”命令。使用smartmontools或類似的工具來監控SMART屬性。在第一個Reallocated_Sector_Ct,Current_Pending_Sector或Offline_Uncorrectable,即使它仍然有效,請更換磁盤。一種始終安全的方法是不刪除文件,而將它們移動到同一磁盤中的另一個目錄中,但在由SnapRAID檢查的目錄樹之外。然後可以運行“同步”命令,並且隻有在它完成後才真正刪除這些文件。如果在“同步”過程中出現磁盤故障,則必須運行“修複”命令,指定刪除的文件的存儲位置.

https://wdullaer.com/blog/2016/03/19/create-a-nas-with-redundancy-using-snapraid/  https://zackreed.me/setting-up-snapraid-on-ubuntu/ 

配置就是編輯下列模板存到執行文件的安裝目錄下:
# Example configuration for snapraid for Windows

# Defines the file to use as parity storage
# It must NOT be in a data disk
# Format: "parity FILE [,FILE] ..."
parity E:snapraid.parity

# Defines the files to use as additional parity storage.
# If specified, they enable the multiple failures protection
# from two to six level of parity.
# To enable, uncomment one parity file for each level of extra
# protection required. Start from 2-parity, and follow in order.
# It must NOT be in a data disk
# Format: "X-parity FILE [,FILE] ..." #2-parity F:snapraid.2-parity
#3-parity G:snapraid.3-parity
#4-parity H:snapraid.4-parity
#5-parity I:snapraid.5-parity #6-parity J:snapraid.6-parity

# Defines the files to use as content list
# You can use multiple specification to store more copies
# You must have least one copy for each parity file plus one. Some more don't hurt
# They can be in the disks used for data, parity or boot,
# but each file must be in a different disk
# Format: "content FILE"
content C:snapraidsnapraid.content
content K:arraysnapraid.content
content L:arraysnapraid.content

# Defines the data disks to use
# The name and mount point association is relevant for parity, do not change it
# WARNING: Adding here your boot C: disk is NOT a good idea!
# SnapRAID is better suited for files that rarely changes!
# Format: "data DISK_NAME DISK_MOUNT_POINT"
data d1 K:array
data d2 L:array
data d3 M:array

# Excludes hidden files and directories (uncomment to enable).
#nohidden

# Defines files and directories to exclude
# Remember that all the paths are relative at the mount points
# Format: "exclude FILE"
# Format: "exclude DIR"
# Format: "exclude PATHFILE"
# Format: "exclude PATHDIR"
exclude *.unrecoverable
exclude Thumbs.db
exclude $RECYCLE.BIN
exclude System Volume Information
exclude Program Files
exclude Program Files (x86)
exclude Windows

# Defines the block size in kibi bytes (1024 bytes) (uncomment to enable).
# WARNING: Changing this value is for experts only!
# Default value is 256 -> 256 kibi bytes -> 262144 bytes
# Format: "blocksize SIZE_IN_KiB"
#blocksize 256

# Defines the hash size in bytes (uncomment to enable).
# WARNING: Changing this value is for experts only!
# Default value is 16 -> 128 bits
# Format: "hashsize SIZE_IN_BYTES"
#hashsize 16

# Automatically save the state when syncing after the specified amount
# of GB processed (uncomment to enable).
# This option is useful to avoid to restart from scratch long 'sync'
# commands interrupted by a machine crash.
# It also improves the recovering if a disk break during a 'sync'.
# Default value is 0, meaning disabled.
# Format: "autosave SIZE_IN_GB"
#autosave 500

# Defines the pooling directory where the virtual view of the disk
# array is created using the "pool" command (uncomment to enable).
# The files are not really copied here, but just linked using
# symbolic links.
# This directory must be outside the array.
# Format: "pool DIR"
#pool C:pool

# Defines the Windows UNC path required to access disks from the pooling
# directory when shared in the network.
# If present (uncomment to enable), the symbolic links created in the
# pool virtual view, instead of using local paths, are created using the
# specified UNC path, adding the disk names and file path.
# This allows to share the pool directory in the network.
# See the manual page for more details.
# Format: "share UNC_DIR"
#share server

# Defines a custom smartctl command to obtain the SMART attributes
# for each disk. This may be required for RAID controllers and for
# some USB disk that cannot be autodetected.
# In the specified options, the "%s" string is replaced by the device name.
# Refers at the smartmontools documentation about the possible options:
# RAID -> https://www.smartmontools.org/wiki/Supported_RAID-Controllers
# USB -> https://www.smartmontools.org/wiki/Supported_USB-Devices
#smartctl d1 -d sat %s
#smartctl d2 -d usbjmicron %s
#smartctl parity -d areca,1/1 /dev/arcmsr0
#smartctl 2-parity -d areca,2/1 /dev/arcmsr0

3.1 Raid

上圖是Riad0/1/5/10。Raid5若有一盤壞,重構幾乎肯定遇到10^14的讀錯概率,導致重構失敗。Raid1+0的上下層分別是1和0,即具有raid 1的安全和raid 0的加速。隻建議用Raid 0/1/1+0=10。

Image result for raid 10

軟件Raid有Linux下的MDADM或ZFS。前者實現傳統Raid,傳統Raid有些問題;後者擴充容量不便,常用mirror(雙盤適合硬盤)Raid-Z1(3盤,校驗盤1),Raid-Z2(4/6/10盤,校驗盤2),Raid-Z3(5/7/11盤,校驗盤3),允許壞盤數等於校驗盤數。

Ubuntu ZFS: http://www.coctec.com/docs/net/show-post-68218.html  https://wiki.ubuntu.com/ZFS 

https://github.com/zfsonlinux/pkg-zfs/wiki/HOWTO-install-Ubuntu-14.04-or-Later-to-a-Native-ZFS-Root-Filesystem 

http://www.jamescoyle.net/how-to/478-create-a-zfs-volume-on-ubuntu 

https://help.ubuntu.com/community/Installation/SoftwareRAID

3.3 Windows的Raid

In Windows they don't call their RAID options by the traditional 0, 1, 5, 10 etc. Instead they use spanned, striped, and mirrored as the options for creating software RAIDs. Windows 2K8 has all but Windows 7/8 has no raid 5.

http://www.howtogeek.com/howto/36504/how-to-create-a-software-raid-array-in-windows-7/  http://www.maximumpc.com/how-set-software-raid-0-windows-and-linux-2015/ http://www.buildegg.com/bewp/?p=44

Windows7 的raid1,隻需在格式化時選new mirror volume,維護時右擊選相應盤看功能。比如換盤需AddMirror和Resynching,有時需offline再online。OS也可以 mirror稱為primary和flex,primary壞了需轉接flex盤再選flex啟動,再換加薪盤,用msconfig改提示信息。

3.4 Storage Pool (Windows 8.x/10 Server 12)

下載:https://msdn.microsoft.com/en-us/windowsserver2012r2.aspx 

http://543925535.blog.51cto.com/639838/1105672  https://community.emc.com/docs/DOC-20768 

可選1-N塊盤建存儲池,然後在其上建邏輯盤:simple、mirror(至少兩塊盤)、parity(至少三塊盤,三重備份)。避免raid容量不同的浪費,可增減盤(右擊):
創建時:物理磁盤——添加到存儲空間——創建虛擬磁盤——建立卷組
刪除時:刪除卷——刪除虛擬磁盤——刪除存儲空間——離線物理磁盤
數據刪除重複組件:在“添加角色和功能向導”—“選擇服務器角色”界麵,將文件和ISCSI服務下麵的“數據刪除重複”勾選.

4. 硬盤、機箱與電源

佑澤2600(200x260x210D)支持200x240(7.87x9.45")主板,底板可直接裝2.5+3.5,支持ATX電源(150x86x140)。擴展盤的方法:
a)ATX電源下加掛2.5+3.5;或底板放2x3.5單層,4x3.5雙層(立人L04盤架)
b)電源部位豎立5x3.5"盤架(112x146x170):電源(ITX-PA250W 82x40x150)放旁邊或底部;或外置DELL 12V18A直入MT-C224或經立人LR1106-250W轉ATX。
c) 電源部位擴孔吊裝Intel SC5300的6盤架ECRI4220687,頂部接口板掉180度安裝以節省空間,底部裝ITX-PA250W電源。插卡不能用,需考慮散熱。LGA1151散熱孔距75mm孔徑4mm。

DIY機箱:https://www.youtube.com/watch?v=K8hLXJUQFoc&feature=youtu.be ebay/amazon有3D Carbon Fiber Film和El wire。6mm MDF板加角碼,上粘螺帽。

4.1 SSD

http://dealnews.com/c473/Computers/Storage/Hard-Drives/Internal-Hard-Drives/f1284/SSD/ 

WD RED NAS用硬盤MTBF是1E6, 耗電12V1.75A,6個盤加i3-6100T(max51W),12V18A電源有約3A裕量。SSD 1TB價格$200-240(May16),Samsung/PNY最好, Mushkin次之,再Crucial/Sandisk, Kingston較差,OCZ最差。SanDisk 240G SSD是1.75E6。

PNY測試: http://diy.pconline.com.cn/788/7886864_2.html  http://www.notebookreview.com/review/pny-cs1311-vs-pny-cs2211-consumer-vs-gamer-ssds/  ATTO軟件用壓縮型數據,AS SSD用非壓縮型數據,加上SSD控製器也有壓縮處理,測試結果會有不同,非壓縮控製器因寫入量大通常較慢,但是遇到已壓縮過的數據時可能較快?AS SSD Benchmark則有兩種數據顯示:http://ssd.zol.com.cn/582/5822455.html 也可用crystal diskmark。

6. VNC

http://blog.aizhet.com/Windows/6739.html 

6. Dlink 32x NAS http://dns323.kood.org/start 

f/w support 4TB: http://sourceforge.net/projects/alt-f/ 

320support 3TB: http://www.ebay.com/itm/D-Link-DNS-320-ShareCenter-2-Bay-Network-Storage-Enclosure-DNS320-/171828200901 

7. 4K video editing

http://www.intel.com/content/dam/www/public/us/en/documents/guides/workstation-adobe-4k-guide.pdf

Exon E5 v3 2Cpux12core,64G RAM,4G video RAM,12T SSD

8.  實例

考慮:https://www.zhihu.com/question/21359049 https://post.smzdm.com/p/64200/ http://wiki.dreamrunner.org/public_html/Misc/Software/nas-summarize.html 

Banana Pro(Arm A7 2x1.2G):https://www.hackster.io/Leo/using-banana-pro-to-build-nas-home-server-9530a5

J3160: http://wiki.dreamrunner.org/public_html/Misc/Software/nas-summarize.html Linux ZFS,硬盤休眠通過hdparm的-B參數設定硬盤的advanced power managemant值。原值254一直轉,改為127(0-127是休眠),再改/etc/hdparm.conf使重啟後有效。結果硬盤大部分時間是休眠,溫度40左右,電源處也不燙了。磁頭重啟數Load_Cycle_Count的增加每年約1萬5,與壽命60W次比可忽略。

J3455-ITX,CPU 10W,SSD係統盤分一塊虛擬做數據盤緩衝:https://post.smzdm.com/p/632679 https://www.intel.com/content/dam/support/us/en/documents/network-and-i-o/wireless-networking/August_2016_Intel_WiFi_Adapter_Information_Guide.pdf

Z270M-ITX/ac+i3-7100T: https://partofthething.com/thoughts/building-a-nas-serverhome-server-in-2017/  Ubuntu 17.04(ZFS,NAS,SAM),setup SSH,install nVidia 1070(machine learning) driver. Z270比H270強的地方是可超頻。

8盤(C2750D4I+D1541D4I-2L2T):https://www.chiphell.com/thread-1711829-1-1.html

DIY係列: https://blog.brianmoses.net/2017/03/diy-nas-2017-edition.html  https://blog.brianmoses.net/2017/12/diy-nas-econonas-2017.html 

這裏要說明ASRock主板隻提供windows非服務器驅動,其它OS未必能裝。故可以Win10為主加NFS server。喜歡黑群暉(5.2 5592up2)的可用虛擬機(esxi或HyperV)https://post.smzdm.com/p/439699/ 

9. 其它

DDR3是240pin,DDR4是288pin。ECC/non-ECC DIMM的管腳定義相同,差別在前者每byte多了1bit CBx校驗(在DataBurst後)輸出,Alert腳也多了相應功能。當然這些功能都需主板支持。ECC用於非ECC主板的可能障礙,是主板是否可能利用CBx不輸出的這段時間?DIMM上的EEPROM其mode register是可以禁止CRC輸出的,編程參考:https://forum.arduino.cc/index.php?topic=141848.0 ASRock H270M-ITX/ac說明支持ECC運行在非ECC模式,支持Gen6 Skylake,gen7 Kabylake,不支持gen7 300 series。當然所有RDIMM都不能用。

 

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