Possible Duplicates: Best method of transferring files over internet? Free way to share large files over the Internet? I have been asked to design a system for transfering large files (1GB+) across the internet. These files are pdf documents that customers need to download from my website. I have never built anything like…
For your reference, below is a list of data recovery service providers that can open your Samsung HDD product and (if connected through the link below) provide a seal or proof of data recovery that will not void your Samsung HDD limited warranty.
Samsung Hard Disk Data recovery partners:
1. CBL data recovery technologies
At CBL, They provide data recovery services for failed hard drives in laptops, desktop computers, data servers, RAID arrays, tapes and all other data storage media. Recommended by major manufacturers, CBL’s hard drive recovery services are ‘warranty-safe’ and backed by our ‘No Data, No Charge Guarantee’.
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2. Ontrack Data Recovery
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4. MYUNG INFORMATION TECHNOLOGIES.,Ltd
Who shall be a company working for happiness of customers and a company working condition rather than excellence data recovery company.
MIT can offer you:
Note: SAMSUNG IS NOT LIABLE IN ANY WAY FOR LOSS OF DATA WRITTEN TO OR SAVED ON ANY SAMSUNG HDD PRODUCT, OR FOR ANY DATA RECOVERY OR ATTEMPTED DATA RECOVERY.
Case:Customer’s notebooks cannot recognize the hard disk, and the hard disk is 160GB of SSD solid -state hard disks. Solution:At present, the data recovery technology of SSD solid -state hard disks is not very mature, but some failures can still be solved.SolidStatedisk, IDEFLASHDISK is composed of the control unit and the storage unit (Flash chip)….
Case:The RAID0 made by the customer’s 2 MaxTor 160G SATA hard disk, which is full of drawings. When the staff did the system, the RAID was re -configured. The partition was lost and the data could not be accessed. Solution:The engineer took the hard disk to the special hard disk mirror image on the special…
Case:The customer’s maintenance of the computer is a blue screen. It is a blue screen when it is turned on to skip the BIOS detection item. The hard disk is normal. After entering the PE, the hot -hanging hard disk is also blue screen. Solution:After getting me here, I hung PC3K normally without errors, and…
Only recently though, have I seen this problem really metastasize; reduced transfer rates during multiple HDD to HDD file transfers.
First of all, I understand that sending files “single-stream” from one HDD to another in a single transfer allows for the most direct Read/Write instance, and thus the fastest rates, and that queuing multiple transfers slows that down because the drives are having to do a lot more platter skating, but what I have a hard time understanding is where is ALL that bandwidth overhead going?
For instance, I may be running a HDD to HDD transfer and hitting 130M/s, but when I cue another transfer, they may both settle to less than 40M/s, which leaves a transfer rate discrepancy of more than 40M/s just -gone-. I couldn’t seriously be losing this just to seek times across platters? Could I?
Even on some “single stream” transfers, data is still spread across multiple platters, and I don’t see a degradation in speed.
Another example is when running transfers between four completely unrelated drives.
I may be running transfers between drive A to drive B, one drive on channel 1 and the other on channel 2, and when I run a transfer from drive C to drive D (Say on channel 3 and channel 1, respectively) the -entire- list of transfers bottoms out in speed, with a large discrepancy of missing bandwidth once they all settle down into their anemic rates.
I thought this could be a case of buffer under-run, but across the entire system?
All of my drives are SATAII or better, and all have 32MB or better, all running on 7200RPMs.
Does anyone know what’s going on here? Am I missing something?
I think your forgetting your mainboard has to process this info too. your south bridge has to deal with data from the HDD’s and could be slowing the bottleneck slowing the process.
when making 2 transferes between 2 HDD’s the heads have more work to do and their 2 seperate jobs so they conflict for resources. when you make a single transfere, the data streams smoothly, start to finish and the heads dont need to jump around wrighting data. when making 2 transferes, on one disk the south bridge must decide what the HDD does for each job and the hdd has to deal with 2 sets of instructions. theoretically 2 jobs should take half the wright speed each but when you take into account the processing needed and the ineficiancy of the heads jumping back and forth working 2 jobs you loose wright speed.
Now, making 2 transfere’s on 4 disks. i suspect that is more your south bridge bottlenecking the large volume of data being streamed to it combined with the time it takes to process it all and keep running a OS.
basically your computer is only as fast as the slowest needed part for any given action.
just for good messure, when making 2 transfere’s with 4 HDD’s, monitor your CPU and RAM usage to eliminated the possability of them causing the slow downs.
also defrag you HDD’s, your drives will jump back and forth filling in blank space left behind from deleted files or apps, this causes delays as the heads need to move about more.
im no expert but thats the basic idea behind it. hope that answers your question or atleast helps you get a better grasp on what is involved in the process.
The SD memory cards known as the “Secure Digital” first began as miniature cards. Afterwards the new and advanced form of the SD memory card SDIO “Secure Digital Input/output” was introduced into the market. The SDA “Secure Digital Association” included new features and technology to the SD memory cards. The SDA included new varieties of card functions. These new card functions included wireless “Local Area Network LAN” devices, cell phones, GPS receiver, digital video camera etc. The memory card readers that were used in the Secure Digital devices connected to the Universal Serial Bus (USB). The Windows Operating System detects and manages the SD (Secure Digital) memory cards through the driver called the (USB) Universal Serial Bus mass storage. The (SD) Secure Digital host controllers are supported by the Operating System. The Operating System connects the host controller SD to the Peripheral Component Interconnect (PCI) bus. When the SD-host controller is detected by the operating system, the “SD Secure Digital bus driver” is loaded by the operating system OS. When the SD card is inserted by the user, the windows Operating system loads two drivers the “Storage mini-port” and the “SD Secure Digital Storage Class”. These two drivers are loaded on top of “Bus driver” by the Windows Operating System. On the other hand if the SD memory card of a different function like the wireless Local Area Network (LAN) or the Global Positioning System is inserted by the user, then the Windows Operating System loads the driver that is supplied by the vendor. It is necessary that both the vendor supplied and the native drivers in the (SD) Secure Digital stack communicate with “Secure Digital Bus”. The device drivers call the routines to communication with the “Secure Digital Bus”. These routines are called in the static “Secure Digital Bus library”. When the SD Secure Digital drivers compile, it is necessary that they link to the “Secure Digital SD Bus library”. There are some limitations for the SD device drivers. The “Host Controller Register” is not directly accessible by the Secure Digital device drivers.
The SD device drivers call the routines of “Secure Digital Library”. Then the Secure Digital Library forwards the Secure Digital commands to “Host Controller”. Music can be stored in the Flash Memory card and it is most advantageous than storing it in the Hard drives. The SD flash memory cards consume less power and are more portable. The SD flash cards also have resistance to shocks. The SD card facilities its users and they can easily record the data to their personal liking like music, pictures. The users can easily carry and move the data with ease and comfort. The SD memory card has the technology to fulfill the requirements of the future networked society. The tiny SD memory card provides many advantages to their users. These memory cards are highly compatible and they can link to different digital equipments. Because of the compatibility of the SD memory cards, their usage is more likely to expand even more in the future. The SD card has now become a standard of memory cards that are used for digital connectivity. In the near by future, the SD cards will be universally accessible to more wide array of Multimedia data. The size of the SD memory card is approximately 24mm x 32mm x 2.1mm. The design of the SD card is very compact and slim. Therefore, they are easy to handle and the user can easily transfer the data.
The devices that are compatible with SD card can play video clips & music with the help of “decoder software”. The DVD & CD players use “drive mechanism” while the SD memory cards do not require “drive mechanism” to play the video clips. So, this gives the product designers more freedom and they can be more creative and innovative. The other popular form of the SD memory card is the miniSD memory card. The size of the mini-SD card is approximately 20mm x 21.5mm x 1.4mm. The miniSD card is smaller in size than the SD card.
The SD memory cards have different recording capacitates, their capacity reaches up to 8GB. The large capacity helps to store the High quality videos. The demand for high capacity SD cards with fast data transfer speed has increased because of the increased digital content range. The SD cards also have the technology of “Copyright Protection”. This “Copyright Protection” technology enables new distribution system. This provides safety and security to the illegal copying of the data.The SD card has built in technology called the Key Revocation. The SD memory card has “Control Circuit”, which allows to read & write the after the detection of the external devices. The data is written and read within the “protection area” of the card. The authentication among the digital devices has to be enabled so that the SD card could be accessed.
IDrive announced today that they will be offering a single plan with which subscribers can back up an unlimited number of PCs, Macs, Smartphones and Tablets.
The plans are branched into two categories: home/personal users and business users. For the personal users, available plans ar $4.95/month for 150 GBs and $14.95/month for 500 GBs. Additionally, personal users may subscribe and receive their first 5GB for free. Under the business plan, subscribers can get anywhere from 50 GBs of storage for $9.95/month to 1 TB for $79.95/month.
“We’re excited about the latest updates to IDrive, with a single account new customers can back up as many computers and mobile devices as they want and then view their files from any of those connected devices or on our website. Plus, the mobile app can now back up contacts, photos and videos and make them available online as well.” said Raghu Kulkarni, founder and CEO of Pro Softnet Corp.
“Many backup services offer ‘unlimited’ storage space for a single computer at a flat rate, like $50 per year per computer – it sounds like a good deal at first, but back up 100 GBs from that one computer and you pay $50/year, back up just 50 GBs and you still have to pay $50/year: that’s where they get you, not only that, ‘unlimited’ storage plans almost always have very limited file retention, meaning they automatically remove data from your backup after you delete the files from your computer, usually just 30 days later. The question is, ‘What use is a backup that doesn’t contain files you accidentally deleted, say, six months ago?’ On the other hand, IDrive allows people to actually use all of the online storage they are paying for.” said Stephen Gold, Business Development Manager.
For those unfamiliar with IDrive’s stats, a quick run-down of their features:
IDrive also has a mobile app available so users can access their account and share files when they’re away from their computers. Users can back up contact information, photos and videos over a Wi-Fi or 3G connection to the IDrive cloud from iPhone, iPad and iPod touch devices running iOS 4.0 or later as well as Google Android devices running 1.6 or later. The information is then made available via other connected computers and mobile devices as well as on the IDrive website.
About IDrive:
IDrive Online Backup is an industry-leading solution for online backup for PCs, Macs and Smart Phones including iPhones, Blackberries and Android based Phones.
Related post: Top 5 Online Backup Services
Do you know a good software to download all PDF links in a web page?? Operating system is Windows 7. Solution: You can use wget and run a command like this: wget –recursive –level=1 –no-directories –no-host-directories –accept pdf http://example.com Or with the short options: wget -r -l 1 -nd -nH -A pdf http://example.com UPDATE: Since…
Case:The computer suddenly crashed in use and could not restart Solution:Tonic data recovery engineer testing is determined that the hard disk caused by the firmware problem is busy. Use special data recovery tools to process the hard disk firmware. The data is completely restored
