First of all, to the refered one in the letter that Data Domain staff send like that like EMC CEO Joe Tucci, Data Domain becomes a product Division within EMC. Secondly, EMC, promote product of Data Domain to sell through his marketing channel, and this will raise the income of Data Domain notably. Though EMC is doing this, this company is selling the other repeated data and deleting the products, especially the repeated data of Avamar and Quantum delete the products.
EMC purchased Avamar Technologies in 2006, Avamar was that of repeated data deleted the initial company of software at that time. Avamar software repeats the data to delete in the source of the data instead of repeating the data to delete after the data are sent to backing up the apparatus. In Avamar mode, the agent operates software in physics or fictitious server, and repeat the data to delete to the data, then just send the data to central Avamar catalogue. This kind of mode is suitable for the long-range office / branched office ROBO With the intersection of data and the intersection of centre and organization of type, repeat data, delete work, be carried on in whole of overall range that organize. The small-scale ROBO environment uses agency’s software, but the large-scale environment can use Avamar server. The data centre can use more than one nodal Avamar Data Store in the grid is set up.
It can be SharePoint that EMC NetWorker backs up the software, Exchange, SQL Server and Oracle database offer and adopt the repeated data of Avamar way to delete. Avamar of the latest edition can support SharePoint Server 2007 and Lotus Domino.
EMC still magnetic disc storehouse VTL in it ‘ Fictitious tape storehouse Sell in the products through authorizing Quantum DXi that is permitted to repeat the data to delete and duplicate the software long-rangely. This product can carry on in-line ‘ Way that is dealt with the course of data transmission Repeat the intersection of data and deletion or post-process ‘ Deal with after finishing backing up Repeat the data to delete. EMC Dell of cooperative partner gets the mandate of DXi technology.
Form the contrast with it, Data Domain offers and repeats the data to delete and store the array, this array adopts four nuclear Xeon processors and operates one’s own DD OS software, carry on inline and repeat the data and delete to the data which enters the array. Some spare software such as NetWorker of EMC, can send the data to Data Domain apparatus. Data Domain products are all right at the same time and CommVault Simpana, IBM Tivoli Storage Manager and Symantec NetBackup and Enterprise Vault backup and filing the software to work in coordination. Data Domain has apparatus directed against ROBO application program too.
In front of EMC, two each other eclipsed repeated data deleted technology now. EMC has Quantum technology of receiving mandate and Data Domain technology received soon. The former is one VTL, but the latter is not. VTL can lead backing up the data out to the tape, but Data Domain products can’t. But these two products can both be written into through backing up the software. Though EMC orientates the tape storehouse as the products of the substituting tape, this kind of tape characteristic can be used for clicking as the difference that is distinguished with Data Domain.
These two kinds of technology and Avamar Data Store overlap, so there are three kinds of EMC now can repeat the data centre products that the data deleted and stored to the data.
Tags: oracle database, large scale, domain staff, marketing channel
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: system managers, hard disk, computer server
DS5020 is that IBM begins to supply in one section in September of this year the end stores the new products, its introduction, do not have low end products situation after remedying series IBM DS5000. Store the little introduction of manager’s money of the products according to IBM system and Greater China district of Ministry of Science and Technology, DS5020 has been promoted by more than 70% compared with DS4000 its performance, therefore suit the application demands of small and medium-sized enterprises further.
DS5020 has 4 available ports, 4 8Gb/s foreign ports, the quantity of the largest magnetic disc is 112, it can be that FC can adopt SATA plate too. Though there are only 112 magnetic discs, the back interface of the system adopts interface of 4 8GB/ses, in this case, greater than 112 magnetic discs, its systematic function will have influence, so over 112 magnetic discs, it is useless to promote instead as to systematic function. In buffering, DS5020 has offered the option that 2G, 4G buffer. Gold points out a little, in the ABC of memory system of grade, it is not obvious to add too and buffer results got up, consider the cost factor as a whole, 4GB is a good choice.
Gold points out a little, the ones that need paying attention to are: 8Gb/s twice that of 4Gbps, for store but speech, network connect bandwidth raise, magnetic disc connect bandwidth change inside the memory system, analogous to right away then of ” the door ” It is wide to change, still can’t improve the performance of the whole system. The inside design in DS5020, has put out the new port, so its whole performance is improved to some extent.
In management software, DS5000 simple compared with DS4000 in software, the intersection of interface and humanization further, operation is easier too. In addition, DS5020 has offered the dynamic RAID function, needn’t shut down, in fact RAID1 0 can change into RAID 5, can operate online directly.
Tags: gold points, small and medium sized enterprises, application demands, memory system, magnetic disc, greater china
Store the current situation of efficiency to survey and study Chinese enterprises generally waste seriously
At the beginning of April, we faced IT department of Chinese enterprises to carry on an investigation, mainly involve the application efficiency question that enterprise IT departments store. All in all, the application state of storage equipment in enterprises allows of no optimist, all kinds of reasons have caused there is very large storage space that has been wasted in magnetic disc, tape,etc. storage equipment that the enterprise flower give a long price for, the key point of the question does not have appropriate tool.
Let us see a technical staff employ the total evaluation of the state to the enterprise magnetic disc in IT department first at first. The proportion of providing favorable comment only accounts for and is less than 20%. But there are more than 30% on thinking the company magnetic disc and employing the bad and even terrible proportion of the state. Half of the interviewees think the company magnetic disc and employ the state to be general, there are spaces of promotion.
We come to see wasting the situation overallly of enterprise’s disk capacity again. Waste capacity, account for enterprise to install 10%-25% – 25%-50% capacity, account for more than tri-layer each, waste capacity, account for enterprise to install capacity, have two the amount of layer too. All in all, waste the secret worry that has already become each enterprise, and waste the so large pressure that has brought a lot of budgets to each enterprise of the proportion. This has been in recent years too ” The cloud ” Begin the popular major cause.
Say cloud first and, Let’s see what enterprise that reason cause store installed capacity, waste so serious. We survey applied way of user’s hyperdisk, find, trilaminar enterprise’s users have not monitored the capacity, but in the users who monitor to the capacity, the majority is to use the tool offered in the array, have specially bought third party’s users whose capacity monitors the management tool and taken minority. In deleting the data regularly, 60% users can delete regularly from side to side, about 40% of users will not delete the data for various reasons. In deleting the machine format choice, users’ selection mode is successively according to the time and process delete to the recent file not often visited , user’s quota users must delete file , according to the business unit or work group and according to the storing layer, certainly, most users will adopt the mode of combination.
In choosing the users that the capacity management tool manage data can be selected more ,Half the users all choose the data and file the software, 40% of the customer options use automatic or manual memory to stratify technology, 36% of the users have compressed or gone the stored data in weightly, 25% of the users have used and simplified the disposition automatically. In what a valid hyperdisk select more it is ,85% of the interviewees have chosen better management to employ tools, it seems that a section of practical management software is very important. The customer options of 57.7% ” stronger management support ” ,It means CIO even CEO of enterprises should realize that store the importance of the utilization rate of equipment, the administrative supervisor’s understanding can increase the support to technician. 48% of the interviewees think that should increase the training of relevant personnel.
Generally speaking, it is a big problem faced in Chinese enterprise IT departments to store the efficiency problem. Should realize the importance of the problem theoretically first by method to solve, then go to look for the solution.
Tags: magnetic disc, technical staff, third party
Not that I think. I think we are seeing that store the arrival of century newly. In this new memory era, Shan Cun is used for storing the master data, the first layer of data; The large capacity disk is used for bearing the weight of second data and backup data; Become and file the media of the data again in tape. This is like one ” The winning three times successively type ” .
Storing it in the comment of the company of the front from location, we can see the chassis of this winning three times successively type is as follows:
-EMC, through utilizing VNX system of flashing memory to sweep away heroes in the file TPC stake test in a large amount. China fights back through the way that one fully utilizes the disk system of the control device for – Symantec. However, the developing direction of the industry is clear. A supplier does not assault these ranks with system based on magnetic disc in the future.
-SPC-1 arranges a star and is monopolized by the flashing memory system, no matter in terms of characteristic or in terms of cost performance –The flashing memory system will make large progress in cost performance.
You no longer worried on want until how much magnetic disc come on, deal with the intersection of I/O and intensive the intersection of memory and work load on earth future. I/O characteristic of the flashing memory takes a order of magnitude higher, and the cost performance is better. Future main memory will not be limit to the access speed of the picking up head of the magnetic disc again.
As for the large data storage of TB grade, flashing, storing in can’t match with magnetic disc yet on the cost. Even the flashing memory of multi-layer unit of 2 bits is replaced by 3 bits of flashing memory, the density of the magnetic disc increases will still for the advantage of certain magnetic disc. Seagate has just claimed to put out magnetic disc technology of 3.5 inches of TB grade, will sell the driver of a section of magnetic disc 3TB capacity 3 at once, and if willinging, it can also introduce the driver of magnetic disc 5TB capacity 5.
The future direction is very clear. Mainly storing the enterprise layer, the flashing memory will become master media, and the data left will be put on the magnetic disc –SAS or SATA 10,000 transfers to and 7200 is transferred to the magnetic disc. Those do not need the so high characteristic of flashing memory or small enterprise affording the price of flashing memory to say, they can utilize the magnetic disc. The enterprise layer application under some similar situations can be like this too. Disposing the compound driver of cache of the flashing memory becomes a kind of more high-performance choice, suitable for needing the situations of high performance and high capacity at the same time.
On the other hand, the magnetic disc will be used in long-term data storage, especially those need moving fast between different places and different data centres machine formatly Virtual IT environment, just like cloud computing mechanism. But magnetic disc, sustain the collinear magnetic disc, will face the wrong risk of the cumulative data all the time: For example the intersection of valley and the intersection of song and mail face like that once.
It was Oracle Streamline 8500 magnetic tape libraries and LTO-5 tapes that helped the valley song mail to go out of the mire. Though is off lining, plan to be used in the high-capacity magnetic tape library at any time, the tape is a final outfielder. It is a life buoy of the data centre. Without it, when the data centre meet data losing and data corruption storm, you are over. So simple.
The tape is just like a box of napkins. While needing, really, you need it.
The unit GB cost of the tape gets rid of several streets of magnetic disc. Pass the completeness detection library software of media of today, the reliability of the magnetic disc is much higher than the magnetic disc too. The tape casket will not collapse. The tape casket will not be always operated and consumed the electricity continuously, will not produce the heat which need cooling, the most importantly, it will not be always online, will not suffer very quick the data of quick repeated data or file deletion are rewritten.
The tape is very cheap, safe and reliable. Without media that can substitute the tape, unless you assume the magnetic disc is safe. What question the valley song that you can ask it has suffered. You can ask Amazon why is it in obliterated data under accident and why VMware meet the same thing too. The tape is your sanctuary inside the storm valley –Each data centre that disposes the array of the disk drive faces the risk.
This is to store the iron trigonometry in the front: The flashing memory is used in high-speed application; The magnetic disc is used in large second data and backup data; The tape is used for filing.
Tags: memory system, three times, disc increases
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 year
And 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: operating system, response technology, memory slot, hard disk
In science and technology is growing and what the network popularizes today, the materials in people’s daily life back up, store, exchange the frequency and present prominent growth, more and more small and medium-sized enterprises or family works the personal computer user has greater expectation on large memory demand. With the high-speed dilatation constantly of the high capacity of the hard disk, the constant improvement of SATAII\III technology, the market of mobile memory is after going through steady development of GB times, have already begun to march towards in TB era progressively.
What is the tabletop to store
Referring to the high-capacity memory, we have to analyze that store the development and change of the market in recent years. In highly developed a today such as information technology such as network, people data in the daily life materials exchange and data back up frequency increase notably, increasingly many consumers begin to pay attention to different types of memory products, person who store product divided mobile memory and speciality into storing mainly at present ‘ Namely server or magnetic disc array Two big classes, and is between the two, can meet the speciality and store the safe, high-capacity ground need, possess and can be in a kind of blank state for the product market of the factor such as being easy to accept of small and medium-sized enterprises and personal family’s user’s convenient management, price again. For this reason, ” the tabletop is stored ” Arise at the historic moment.
What is called tabletop is stored, it is a relative with respect to mobile memory high-capacity memory, though its mobility moves the hard disk weaker thanly, needs to supply power alone, can put and carry on a large number of data backing up and consolidated storage in the tabletop. It lies between present mobile memory and speciality and stores the brand-new memory products between the fields, it, as storing a new things of the trade, has extraordinary meanings as to small and medium-sized enterprises, individual and family’s user. Mainly there are two kinds of everybody’s dilatation method taken toward PC and notebook computer at present: First, buy the large-scale professional memory apparatus, though characteristics such as its security, high capacity,etc. are obvious, but its high expenses let ordinary consumers hope and halt; Second, install the hard disk additionally or change the hard disk in addition, this kind of method is not merely inconvenient, to most powerless notebook computer, ensure at the intersection of system and stability and security.
Tags: high speed, mobile memory, magnetic disc, memory products, types of memory, science and technology
At the tape summit that Nevada state finishes recently, the most key news is that the tape not merely can recovers, will rejuvenate even more, a lot of people will think this is contrary to the convention, let’s study why there is such prophecy for a while, if proved this to be true, IT trade become the master beneficiary.
Tape Summit 2011 is by the tape and relevant manufacturer, a conference that and is familiar with the analyst of the market of tape and the news media brings, hold in Las Vegas of the state of Nevada this year, before this, a lot of manufacturers have participated in the national radio association NAB too The conference held, though everybody takes the tape biasedly, have too for example such manufacturers as Hewlett-Packard, IBM and elder brother rise sell hard disk and tape at the same time, so, even if the advantage of the tape is emphasized constantly, the conferee thinks the hard disk is more capable and more laboring on the market of increasingly large memory.
If the author is not mistaken, Ed Childers of IBM was declared ” the tape has already died ” first as far back as 1961 ,If really such of fact, we should commemorate tape death for the 50th anniversary now. Though of Ed Childers have confirmed, over these 50 years, tape market has dwindle, two pieces of major application of the tape are backups and are filed today, the ones that made the tape manufacturer uneasy are, the hard disk manufacturer takes a fancy to these two markets too now.
First of all, on the market of backup, the magnetic disc becomes more and more popular to the magnetic disc backup scheme, especially those have used and repeated the data to delete the technical field, a lot of reasons prove the magnetic disc act on while constructing the first line of defence more importantly, lead to the fact a lot of people prophesy tapes will become insignificant in the market of backup, certainly this can not be true.
The intersection of AT
Tags: elder brother, line of defence, key news
ILIO 2.0 of Atlantis ILIO mean the ordered image is optimized It is his hardware device’s software that behaves, it can run on fictitious tabletop Vmware and Citrix as a virtual device. As everyone knows, a large number of fictitious desk-top I/O may make the storage array collapse, make the quantity of hard disk of the array go beyond the quantity of the capacity demand, the purpose, just in order to let I/O ability achieve the appropriate level. This too causes the storage array to use the hard disk of the solid condition and according to the reason why that way calculates I/O ability of them.
Atlantis fits, because go on in NTFS agreement grade, it can optimize Windows XP and connect the influence way between VDI storage array with Windows7 and. Atlantis fits, it can also repeat the data and delete dealing with to them in all VDI images before reaching the storage equipment, thus reduce the highest memory demand of 90% Windows image assembly effectively and further reduce VDI to dispose the memory capacity with required scheme.
Can reduce the fictitious desk-top cost to the cost of physical PC with software integration. Atlantis ILIO can be through reducing the plentiful used storage equipment by 20 times and offering and storing and selecting more, such as utilizing low-cost SAN, NAS or local magnetic disc,etc., thus reduce VDI cost of investment by 75% at most.
Claim in Atlantis, if the fictitious tabletop that operates has antivirus software, then the fictitious desk-top quantity that a server can deposit will be reduced by half. It has proposed a kind of solution to this too, that is to use McAfee MOVE AV. Atlantis to claim: “Atlantis ILIO and McAfee MOVE AV corollary use can improve the memory density by one time, and the characteristic should be superior to physical PC, can reduce the carrying cost by about 90% at the same time. ”
The new solution that it puts forward seems good. An organization named 451 Group leaves such a comment on the websites of Atlantis:
ILIO understands Microsoft’s Windows series operating system. These operating systems considered advantage and inferior position of the traditional PC during design. They assume that there is a specialized local magnetic disc of low dead time that is for them to use. Depositing the fictitious tabletop utilizes expensive long-range memory to replace the low priced here and store. The result causes users, the application software to launch fighting for with the tabletop for definite I/O capacity resources. Windows system does not know what a problem of dealing with above-mentioned resource fighting for and performance reduction.
ILIO apparatus can change the request order of Windows, let Windows think it was a local magnetic disc, but ILIO knew a minidisk actually in SAN of its. Intellectual cache is combined with image management, ILIO apparatus own memory capacity can meet most demands, at all on the issue that will not store I/O bottleneck. ILIO should improve the fictitious desk-top characteristic, reduces SAN apparatus floor space at the same time, simplify central video patch and staging to operate.
If is really so, this means you can use general SAN or NAS storage equipment and obtain with Hewlett-Packard 3PAR SAN or EMC VMAX uniform characteristic. Alternatively, you can also match and use ILIO with 3PAR or EMC array, improve a little more VDI capacity. This is worth trying.
Tags: memory demand, hardware device, memory density, san nas, virtual device, desk top, magnetic disc
Differing widely with Ethernet exchanger, most users are while constructing and storing, FC exchanger often closely integrated in the system. Users pay close attention to intensity not height, on the other hand all OEM optic fibre passway exchangers of apparatus manufacturer of large-scale memory to him on one hand, non- careful user’s even manufacturer of the exchanger is not clear.
In the eighties of the 20th century, connect host computer and it stores standard methods of apparatus to be through look like or IDE walk abreast point-to-point DAS that interface realize connect and store directly such as the SCSI Way. It is offered the speed 5MBps or 10MBps of relatively fast visit SCSI hard disk that SCSI runs side by side ,And several hard disks can be coupled to computer through the same interface.
However, with becoming bigger and bigger to store the subsystem, the computer makes more and more fast, a new problem has appeared: The outside stores the apparatus and begins to become huge. Tape storehouse, RAID the redundant magnetic disc array cheap Begin, need increasingly many space with other the intersection of SCSI and apparatus, this demand, run side by side SCSI connect, extend, come out far from host computer. Meanwhile, I/O input / export The speed is increasing constantly too, then what a big bundle of threads 32 or 64 data bus China keeps the consistency of the signal too on the issue to need to solve in physics as one. SCSI purpose of design of improving edition of simple running side by side lies in, increase the distance of data transmission and solve the consistency problem of signals. But they formidable high-speed signal transmit this technological difficult problem under walking abreast SCSI bus framework finally.
In order to meet these new demands, people have developed the optic fibre passway Fibre Channel offering the access ability of one giga of serial networks for storing the apparatus Agreement. Have set up SCSI agreement used for storing based on optic fibre passway on the fourth storey of the agreement of optic fibre passway, fictitious interface VI used for cluster used for IP agreement and shining upon the network framework of the network Agreement. Optic fibre the intersection of passway and agreement synthesize a lot of advantage, until the intersection of network and range can remotely up to 10 kilometers most, can use simple serial cable, one giga of network speed of many kinds of mediums and can use many kinds of agreements on the same cable at the same time. Characteristic these make optic fibre passway agreement the intersection of SCSI and replacement of agreement approve by people the 1990s while being whole as walk abreast, the passway agreement of optic fibre is used in overwhelming majority high capacity, high side and stored on the apparatus in succession straight now.
With replacement’s appearance of point-to-point way that the passway agreement of optic fibre is regarded as to run side by side SCSI, and as it is accepted by market gradually, the simple memory of a kind of association employs presenting
Tags: consistency problem, data bus, speed signal, magnetic disc, optic fibre