13 myth and truth about the tape
The tape once come to the dead end by the prophecy more than ten years ago, it was the ultimate data which every large small enterprise can’t forget that protected tool and key technology even to this day! Why can the tape be through the test of time on earth? And how much myth are people full of the tape? Reveal the truth of the tape one by one to you now!
The myth 1: The tape is very old
The truth is
The television has come out for 75 years, it has already been 125 years too since the telephone is invented so far, the car has a history of over 100 years especially. The tape develops into the science and technology of another kind of popularization progressively too; In fact, the tape is similar to time that the hard disk coming out!
The myth 2: D2D offers the perfect data to protect
The truth is
The tape is to do the strange land to keep after storing off-line, in order to reach the enterprise layer medium that the real data protected.
The myth 3: The hard disk is cheaper than the tape
The truth is
The present hard disk is not cheaper, can not either later.
The memory mediums of the magnetic tape deck, loading automatically machine, and tape storehouse can be carried easily, offer the unrestricted spare capacity. Every the intersection of GB and the intersection of cost and about USD0.04, tape can wheel, for use, you either will lose old data because of storing the new data continuously.
Take backup and filing of 10TB data as examples:
>>10TB stores to the hard disk = Daily every GB needs to cost the cost US$0.2, needs US$73 in one year in other words, the cost of 000
>>10TB stores the tape to Tandberg Data LTO-4 = Needed cost US$8 in the first year, 250, the annual cost was lower than US$1, 000 hereafter
Use tapes to replace the memory system of hard disk, can probably save US$64 in the first year, 000, can also save US$72 every year later on, 000.
The myth 4: Amalgamate the data in the hard disk, the data environment contributed to ‘ afforest even more ‘
The truth is
In fact, the tape has energy efficiency even more than the hard disk.
It amalgamates data to be pieces of good idea, tape ‘ have electric medium ‘, transfer to tape fastening the disc hard disk data, can let the company save more electricity and money cost.
The myth 5: The tape has slowed down the whole network speed
The truth is
In D2D2T environment, the tape can never influence the speed of the network.
All servers convey the data to the hard disk to back up, it is only and linking up the bridge among the tapes to back up the device. If the hard disk is that the excellent online data back up the solution, then the tape has data of economic benefits to file the scheme most efficiently and most.
Tags: strange land, 100 years, data environment, memory system, tape deck, small enterprise
What advanced NAS function while using virtually give an idea?
When what typological memory is involved disposing, is the memory technology that you select suitable? Or you consider network attached storage NAS Apparatus as a part of inventory policy?
There is an obvious concept in some system managers, advanced solutions such as SAN based on Fibre Channel are offered better characteristic. Or they may like the products based on iSCSI, because has offered the advantage like block level magnetic disc I/O. In addition, the products based on iSCSI step the Off-The-Shelf Ethernet connection based on cable and run, and does not need more expensive optic fibre framework, this is very attractive for controller.
So, where does this kind prove it is a good NAS apparatus through test? When newer technology is paid close attention to at most, the present NAS apparatus has offered a lot of new functions, include simplifying the virtual virtual machine supporting more quantity. How these advanced functions help the virtual focal point discussed by this text.
Virtual and NAS
Before describing a series of NAS advanced function, let’s look in order to support host computer server and virtual machine, use several kinds of methods of NAS apparatus. First and most obvious one in store the fictitious hard disk at the home server is stored at network share at first. Assume the network delay and bandwidth are OK, this kind of method can help consolidated storage and reduce and manage the expenses. When store and change on different magnetic discsing, a plurality of virtual machines share the identical basic minidisk to pay read-onlily and visit too.
NAS can be used for storing the virtual machine backup too to store, and it must be in the system such as ISO file to store any During share data. Like physics machine, you can be connected to NAS sharing the virtual machine. This is a useful method for often employing the organization that test or dispose extensively.
In addition, the organization considers using NAS apparatus to have other several reasons, such as Fig.:
Characteristic and expansibility
Because the identical magnetic disc resources of a large number of potential virtual machine competitions, while assessing and storing the solution, consider characteristic and expansibility are very important. Most NAS supports the extensive capacity to select. Add driving in order to increase characteristic and storage space newly without shutdown when needing. The great memory is buffered and can be asked to promote throughput prominently by the random diskette I/O that virtual machine produce as a lot of. The best way to increase magnetic disc I/O is to avoid using the magnetic disc. In more quick framework 10GB Ethernet On use network adapter not to get together and last expansibility a plurality of network link. The organization can be based on the calculation between their characteristic and cost and use different typological hard disks too. A lot of manufacturers support SAS, SATA and SCSI.
Tags: network attached storage, virtual focal point, newer technology, host computer, share data, system managers
How much is the life-span? How to lengthen the hard disk time limit of the solid condition
In the former project, we understand the abrasion of the flashing memory and loss the equilibrium, manufacturers are looking for the reason lossed around their operating mode. The supplier solves the technology that the abrasion problem uses, make every effort to make the hard disk of solid condition based on flashing memory predict, though from realize very much long even, the predictability is the key to trusting the solid condition is stored in enterprises. And the key factor of the storage life of hard disk of solid condition of another influence –How to use.
The life-span that the solid condition stores is influenced by frequency of the data load. The frequent data load gets to the area of flashing memory, will accelerate the flashing memory and fail. The more important thing is to realize, lossing the equilibrium can only guarantee the flash memory cell is abraded synchronously, nothing can make the flash memory cell accept than the more long load cycle before this. ” Flash SSD is reliable now ” which just as we discuss ,Basically have flashing memory of three kinds of types: Single-storeyed unit SLC ,Multi-layer unit MLC And enterprise layer MLC eMLC . Main difference between these three kinds of flashing memory types lie in how many load cycles can be dealt with, 5,000 lines of MLC amount, eMLC about 30,000 but SLC is 100,000. Because there is no full-time staff’s storage system track record to them, most manufacturers have lengthened this number value for many years.
The secret worry about the life-span or endurance maximum of flashing memory is a back and forth constant load apparatus of the data. The example is buffering and automatic zoning technology to preferably do it in this way. The data are stored in the basic machinery level having and constant analysis of disk drive, when the data become active, bring it up to the solid condition layer or buffer. View from the point of breaking on the frequency, this may mean the solid condition is stored and can be broken many times constantly with one day. In very high environment of the frequency of data relay, the abrasion that the solid condition stores may be imagined faster than that of you.
Automatic zoning and what efficiency of promoting data access is buffered? Increase the activity of the data and keep liveness from the read-only angle ,You can be with the actual memory performance which experience the memory. For example, it is not enough to promote the data speed only a visited once of a file. It is hard disk static behavior of a solid condition that will stratify and exceed an automatic a laminal advantage. You can target these you hope to stay in the data of this floor, but needn’t afraid these data are deposited and withdrawn and moved back and forth at work. In the future in we will specially discuss in the automatic zoning and buffer the system, how the technology challenges stratifying fast.
A method can let the supplier get the storage life of more solid conditions, look all right at least. The supplier increases the solid condition and stores the life expectancy, the storage system offers more internal storage locations to store to the solid condition. Usually 25% to 30% of the extra capacity is distributed into the solid condition and store. He will offer more units to use for the data load. Help the course of garbage collection, loss with the unit, help the driver to continue offering the memory capacity. In addition, it is to try every possible means to reduce the data of the real write driver that the supplier wants to increase the only thing that can be done of the life-span of flashing memory. This needs to use the load technology of buffer memory based on RAM, for example compress and repeat the data to delete. Another technology only uses the solid condition to store, this one that will reduce with storing layer will flicker.
Tags: load cycles, flash memory cell, life span, flash ssd, storage life, time staff
How much is the life-span? How to lengthen the hard disk time limit of the solid condition
In the former project, we understand the abrasion of the flashing memory and loss the equilibrium, manufacturers are looking for the reason lossed around their operating mode. The supplier solves the technology that the abrasion problem uses, make every effort to make the hard disk of solid condition based on flashing memory predict, though from realize very much long even, the predictability is the key to trusting the solid condition is stored in enterprises. And the key factor of the storage life of hard disk of solid condition of another influence –How to use.
The life-span that the solid condition stores is influenced by frequency of the data load. The frequent data load gets to the area of flashing memory, will accelerate the flashing memory and fail. The more important thing is to realize, lossing the equilibrium can only guarantee the flash memory cell is abraded synchronously, nothing can make the flash memory cell accept than the more long load cycle before this. ” Flash SSD is reliable now ” which just as we discuss ,Basically have flashing memory of three kinds of types: Single-storeyed unit SLC ,Multi-layer unit MLC And enterprise layer MLC eMLC . Main difference between these three kinds of flashing memory types lie in how many load cycles can be dealt with, 5,000 lines of MLC amount, eMLC about 30,000 but SLC is 100,000. Because there is no full-time staff’s storage system track record to them, most manufacturers have lengthened this number value for many years.
The secret worry about the life-span or endurance maximum of flashing memory is a back and forth constant load apparatus of the data. The example is buffering and automatic zoning technology to preferably do it in this way. The data are stored in the basic machinery level having and constant analysis of disk drive, when the data become active, bring it up to the solid condition layer or buffer. View from the point of breaking on the frequency, this may mean the solid condition is stored and can be broken many times constantly with one day. In very high environment of the frequency of data relay, the abrasion that the solid condition stores may be imagined faster than that of you.
Automatic zoning and what efficiency of promoting data access is buffered? Increase the activity of the data and keep liveness from the read-only angle ,You can be with the actual memory performance which experience the memory. For example, it is not enough to promote the data speed only a visited once of a file. It is hard disk static behavior of a solid condition that will stratify and exceed an automatic a laminal advantage. You can target these you hope to stay in the data of this floor, but needn’t afraid these data are deposited and withdrawn and moved back and forth at work. In the future in we will specially discuss in the automatic zoning and buffer the system, how the technology challenges stratifying fast.
A method can let the supplier get the storage life of more solid conditions, look all right at least. The supplier increases the solid condition and stores the life expectancy, the storage system offers more internal storage locations to store to the solid condition. Usually 25% to 30% of the extra capacity is distributed into the solid condition and store. He will offer more units to use for the data load. Help the course of garbage collection, loss with the unit, help the driver to continue offering the memory capacity. In addition, it is to try every possible means to reduce the data of the real write driver that the supplier wants to increase the only thing that can be done of the life-span of flashing memory. This needs to use the load technology of buffer memory based on RAM, for example compress and repeat the data to delete. Another technology only uses the solid condition to store, this one that will reduce with storing layer will flicker.
Tags: life span, full time, load cycles, storage system, time staff, flash ssd
Technological revealed secrets of cache of hard disk of Intel Z68 solid condition
Buffer technology as to Smart Response Technology solid condition hard disk that Z68 chip set that Intel will be released soon supports, we have already analyzed in detail a few days before. However, a question that everybody cares about most was not answered yet, that is: What size can Intel, this technology, bring to characteristic of hard disk on earth promotion?
A few days ago, demonstrated within a Intel the slide was exposed in the network, revealed the answer to a riddle of the question at last. According to the official test of Intel, in Core i7-2600K, person’s DDR3-1333 memory once of 2x 2GB money, on Windows 7 64bit SP1 platform, use a piece of western data 1TB SATA 3 solid condition hard disks, and a Intel ” Larsen Creek ” 20GB solid condition hard disk, utilizes the solid condition hard disk of Z68 to buffer technology and construct ” mix the hard disk ” ,PCMark 05 hard disks of scores that can be made systematic are promoted by 355.5%, the toggle speed of the operating system is improved by 19.4%, machine available-time reduces to 28 seconds from 35 seconds.
In fact, this technology of Intel has a long history, can trace back to ” flashing memory slot ” appearing by batch P55 chip set mother board memory slot initially . The technological coaxiality Braidwood at that time, just used flashing memory as the hard disk to buffer, promoted the magnetic disc characteristic.
Acceleration flashing memory slot that appeared on the first batch of P55 mother boards that yearAnd reached this generation, popularize the improvement of the intensity with the hard disk of the solid condition, it was moved towards at last practically that the hard disk of this solid condition buffered technology. Moreover, Intel will take this opportunity to popularize one’s own solid condition hard disk products too. For example ” Larsen Creek ” appearing in the official side tests The low-end solid condition hard disk that Intel will be released soon, is called series 311, the leading ultra low price, the price may be less than 50 euro, capacity only has 20GB, it is all tense to install the operating system, but just accord with the requirement for buffering the minimum capacity 18.6GB of technology of hard disk of the solid condition. Users can not see an incantation of the hard disk of the solid condition while opening this technology, will totally use it as cache of the hard disk.
Tags: response technology, mother board, mother boards, memory slot, pcmark 05, operating system, larsen creek
Hot revealed secrets of great innovative trend of the solid condition hard disk 10
The hard disk of the solid condition is still a present hot topic, in earlier memory network world conference SNW held of this month Have, the product exhibition about the solid condition hard disk emerges in an endless stream. It seems that half of manufacturer is all peddling their newest flashing memory products.
At present, the price of the hard disk of the solid condition is dropping with 50% of the ranges of every year, the heat degree of the hard disk of the solid condition is not being reduced continuously, the traditional hard disk seems to go to the end. But the writing brush of analyst Jim of the company Objective Analysis of market survey is guided Jim Handy But does not think so, he says the traditional hard disk without knowing the stage of backout history forever. Perhaps the price of the hard disk of the solid condition really drops quickly, but the price of the traditional hard disk is jumping down.
The writing brush is guided and said: “Just like the old cowherd in the past says to the marksman in new era ‘ stand firm, it is the same that I want to shoot you to death ‘. But the hard disks of the solid condition and price of unit capacity of the traditional hard disk all drop at the speed of 50% for every year. ”
However, there are too many advantages of the hard disk of the solid condition. What the following is stored and exhibited at the network world conference is about innovating and employing some technical cases.
1,Virident
Virident has a section of PCIe solid condition hard disk products similar to FusionIO, its most outstanding place is that a characteristic is steady, and the flashing memory module can be changed. The capacity of Virident tachIOn PCIe SSD solid condition hard disk products is divided into 300, 400, 600 and 800GB several kinds. Virident channel executive vice president Jorn and Morfil claims: “Use our solid condition hard disk products, needn’t change the storage card namely replaceable flashing memory module. In addition, most miscellaneous solid condition hard disks can’t guarantee to keep the stable characteristic under loading for a long time, but this point that our products are possible. ”
Virident guarantees the steady characteristic of the hard disk of the solid condition with dual control device architecture. Looking forward to the future, Morfil estimates PCIe will be popularized applying to traditional hard disk size solid condition hard disk products soon. The reason is: From employ processor to be close to can let, improve assumed speed a bit data of letting, this is much better than to utilize the method that SAS/SATA connects technology and inserts the hard disk of the solid condition in the traditional hard disk slot.
2,Viking
Viking Modular Solutions has offered the solid condition hard disk of the high capacity for the fact that enterprises stored and the server is employed. SATADIMM is the highest can offer SATA characteristic compatible SAS of 60000IOPS, 6Gb/s ,Than the traditional solid condition hard disk use 2.5 traditional the intersection of hard disk and outer cover floor space Should lack 75%, it uses DDR 3 DIMM slot.
Storage system framework teacher Jonathan and Hinkle of Viking claims: “If can obtain more high characteristic by inserting the hard disk of the solid condition in DIMM slot, why insist on using the traditional solid condition hard disk? Do not need to replace the low priced hard disk with hard disk of the solid condition, will reduce the memory capacity like that, you can continue using SATA hard disk, making use of spare DIMM socket to increase the flashing memory at the same time. ”
For example, using a large number of systems of RAM memory at present can change some memory into the flashing memory of TB grade, thus offer the high performance of the bigger data set. The heaped capacity of SATADIMM is 480GB.
3,StorSimple
StorSimple 5000 and 7000 mixed cloud products include a solid condition hard disk crest floor. StorSimple carries on this expanded purpose, when the backstage supporter have data the load solid condition hard disk, repeat the data to delete and deal with through hard disk crest layer of this solid condition. In this way, can reduce the data bulk that must be sent to each cloud service supplier such as Amazon, EMC Atmos, AT
Tags: memory products, hot topic, memory module, jim handy, company objective, hard disks
The whole world of Samsung firsts publish DDR 2.0 interface 64Gb MLC flashing memory
Samsung announces today, the company has already begun to produce global first batch of toggle DDR 2.0 interface MLC flashing memory chips at a high speed, the capacity is 64Gb8GB ,Use the 20nm grade craft to make.
Last July, Samsung Toshiba claimed to promote 2.0 interface of Toggle DDR to become the standard specification of the trade together. The new interface can read and write the bandwidth of the flashing memory to bring up to 400Mbps, and DDR 1.0 standard is 133Mbps, the ordinary SDR NAND flashing memory is only 40Mbps.
The new flashing memory that announces this time exactly employs the first batch of products in this interface, are directed primarily to intellectual mobile phone, dull and stereotyped machine and solid condition hard disk of high side. Samsung’s high level is represented, high speed new application of interface let new the intersection of MLC and the intersection of flashing memory and meeting 4 the intersection of generation and intellectual mobile phone, the intersection of SATA and the intersection of 6Gbps and the intersection of solid condition and hard disk and USB 3.0 demand of product fine.
Tags: ddr 2, high speed, memory chips, hard disk, new application
Seagate will release to iPad companion this month It is may a brand-new dull and stereotyped hard disk
Manufacturer Seagate announces the hard disk recently, will release a ” perfect companion ” who directs iPad and other plateform computers against this month . The industry guess to be may be a brand-new miniature hard disk.
Before this, Seagate has already become attached to iPad. It once introduced and let iPad, iPhone, iPod serve as the application software ” TV Remote ” of the report controller of the TV .
Refered to Seagate ” Dull and stereotyped companion ” ,The industry launches guessing, claim it may be a handling tool which utilizes the externally positioned hard disk, or a brand-new one face dull and stereotyped miniature hard disk of computer, may one application software that relevant hard disk used too.
Tags: application software, perfect companion, hard disk
Infortrend takes STEC by hand and dashes to the high in the clouds taking the rocket
Recently, internationally recognized to store the intersection of manufacturer and Infortrend and professional the intersection of SSD and the intersection of production firm and STEC, jointly put out the cloud with high capacity and efficiency and store the solution: Through Infortrend cloud storage equipment at a high speed, cooperate with STEC specially precise enterprise layer solid condition hard disk, a whole set of solution offers the solid rear end data processing platform for should calculate the cloud at a high speed ing.
The cloud calculates that demands to be very harsh to I/O handling capacity of the storage equipment of the data, the evaluation index with commonly used industry is IOPS. At the beginning of 2010, had already obtained first SPC-1 test report if Infortrend cloud will store the key product ESVA. Reveal in the report, ESVA whole composite single memory pool after abundant lateral spreading, can offer IOPS throughput up to 180, 488.53, systematic work load is that the average response time of 100% o’clock is 8.38 milliseconds. And this number value measures and has on the basis of the traditional SAS mechanical hard disk. Now, after SSD of Infortrend and STEC has carried on abundant compatibility testing, the number value tested using SSD will get several dozen and even last promotion of centuple again, really may be dash to the high in the clouds taking the rocket, enough to be to any harsh cloud computing application.
In the the third upcoming cloud calculates the conference, it is the same as STEC that Infortrend will be taken, store its newest cloud with high capacity and efficiency in the platform to move to the scene in full, users will have an opportunity the close-range cloud at a high speed of experience will store life facilities brought. When the time comes, at Infortrend stand scene, the reputable technological managers of two major manufacturers will be accompanied in the whole journey, answer any doubt of yours at any time, and can be that one degree of bodies of yours orders the most feasible cloud and stores the solution, canvass assumed development of cloud and the future with you together.
Tags: close range, value measures, systematic work
Store how to improve memory performance hierarchically?
It is very difficult for enterprises to keep up with the paces of unstructured data development increasing day by day. Though network attached storage NAS Store this kind of data preferably choice, however, while keeping the characteristic of the utility program, wanting the staging NAS economically has limitation greatly, just as attempting with the finger to stop up a large number of holes leaking on the aqueous dam.
Store and increase delay time hierarchically
Present enterprises store, the great majority are not enlivened the data to make up, but these data become and consume this dynamic fact mainly, make this problem more serious. In order to deal with this kind of situation, the manufacturer has already offered the storing layer and the data pattern that every level optimizes. But store, will increase delay time, than increase delay time or influence characteristic make user to be depressed further nothing hierarchically.
How often ‘s delay can be accepted? There is a very great difference in the field of different application in this. For example, in the fields of visual result and computer picture, 0.2 milliseconds of delays is just considered to be a kind of competitive edge, and the delay of tolerating a millisecond of the following in the field of database is ideal. In other fields, if visiting a general utility program, users can tolerate the delay of longer time frame.
Stratify the memory technology for now, has not got the result of anticipating yet. Integrate storing hierarchically using ‘ Including hard disk of the solid condition Technical most significant end NAS apparatus, offer popular file service standard test index to test, have already realized 0.4 milliseconds of achievable delay time recently. This is the best solution that can offer advanced NAS tested at present. After the customer end is supported with stepping up in standard measure, delay time follows to increase to 0.8 milliseconds too.
This question is not a big problem for stratifying different media in the storage equipment, but have very great relations with the basic system framework. Dispose processor, memory and I/O I/O within any NAS apparatus Server. Make NAS apparatus become ” Network attached storage ” But not common file server, made-to-order the intersection of customer and filing system and a lot of used for protecting or optimizing arrangement of the data relevant utility program.
Store the system framework and usually use the colonial filing system hierarchically, join the node of a lot of quantity, can carry on the load balancing among each node, can be in NVRAM NOVRAM nonvolatile random access memory With the Mobile Data between the hard disks back and forth, deposit RAID magnetic disc redundant array Control device, implement the intersection of filing system and yuans of data handling and carry out the intersection of data protection and utility program,etc.. The more important thing is, NAS control device carries out a lot of tasks of taking up system bandwidth. Its most important function is to store, search and protect the subscriber data in order, but not offer high performance.
Tags: delay time, unstructured data, competitive edge