Raundap modern hard disks with interface SCSI it is brought test results of 20 and the whole generation of stores
By values resulted by manufacturers stores of one class (that is with the same speed of rotation and the interface) have as a whole similar parameters. The capacity of models has amicably increased twice in comparison with similar disks of the previous generation and now makes 36,7, 73, and 1 Gbytes for pyatnadcatity'syachnikov and twice more for desyatity'syachnikov, and, the senior model at the last has reached already 3 Gbytes (that is quite sravnima on capacity with seniors SATA-modelyami with speed of rotation 72 ob./min., though and in some times more dear the last). However, here there is one nuance – how this capacity is reached in modern generation SCSI-diskov. The matter is that at the majority of manufacturers formula of quantity of heads and plates is used become already standard – for younger models plate and heads here is used, for average – it is twice more, and for computer inexpensive laptop notebook senior – the whole plates and heads! That is for pyatnadcatity'syachnikov magnetic plates in capacity on Gbytes, and for desyatity'syachnikov – on 74- Gbytes (except for WD Raptor and Seagate Savvio 10K.1, at which plates – on Gbytes) are used. Behind only one exception – at present SCSI-nakopiteley Hitachi the given rule is broken also the manufacturer uses plates of noticeably smaller capacity (approximately and Gbytes accordingly), that is models Hitachi Ultrastar 15K1 and 10K3 total 3/2, 5/ and 10/ golovok/plastin accordingly. Though on specific (on unit of the area) density of record of a plate of all manufacturers are approximately identical – as a rule, about Gbit on kv. Inch. Probably, thus Hitachi wished to truncate a course of arms with heads and to improve time of search. However, unfortunately, it is the companies not ochen'-to it was possible, as passport values of average time of search at disks Hitachi are approximately at the same level, as at contenders (and even worse, than at Maxtor Atlas which do not use the plates truncated in such a way). Moreover, on minimal time of search disks computer inexpensive laptop notebook Hitachi noticeably concede to competitors though on maximal – just surpass (that is shortening of plates has partly justified itself). On the maximal settled (linear) speed chteniya/zapisi useful data the fastest plates have appeared too (as well as search) – at both series of disks Maxtor Atlas (10K V and 15K II), that is on the physicist disks Maxtor are in the lead among competitors (but also weigh thus noticeably more the than the others). Though as a whole contenders here are close – pyatnadcatity'syachniki on linear speed have already passed for Mb per second (on external paths), but yet do not hold out up to sign figure in 1 Mb per second, and three-inch desyatity'syachniki have on the whole mastered a barrier in Mb per second, but have not reached yet up to (only Maxtor Atlas 10K V steals up to this figure closely). Stores of the given class as on selection computer inexpensive laptop notebook have the buffer of Mb except for Hitachi Ultrastar 15K1 where the buffer in volume of Mb is established. I expect, that in SAS-diskah following generation already everywhere there are such greater buffers. ;) As to interfaces besides old kind Ultra3 SCSI all players have similar models for dvuhgigabitnogo Fibre Channel (and at Hitachi — even for 4-gigabitnogo FC). And the majority recently has started to equip the given series also with modern and very perspective interface Serial Attached SCSI (SAS — Gbit/s and much others priyatnostey). Shockstability of all modern SCSI-modeley is approximately at an identical level, manufacturers also have raised till 1, million o'clock parameters of reliability of the enterprise-nakopiteley. One more pleasant moment has appeared that SCSI-diski last generation liquid dynamic bearings (FBD) began to use all. It not only has lowered noise of rotation of stores (they have ceased very annoyingly «zvenet'-pisch'at'» at rotation, and it at once was reflected in acoustic characteristics of disks resulted by manufacturers), but also has positively affected reliability. As to e`nergopotrebleniya and thermal emissions modern SCSI-diskov in comparison with predecessors of any essential changes it is not observed (pair exceptions only confirms a computer inexpensive laptop notebook rule): on nameplate data disks of one manufacturer can be appreciable more economically others, however in practice all not so is unequivocal (however, we shall devote it separate clause on our site). And, it is necessary to notice, that SCSI-modeli consume obviously less, than their analogues for interfaces FC and SAS. From other features modern SCSI-diskov it is necessary to note that manufacturers began to apply all new, faster, productive and compact (by way of a borrowed place on the printed-circuit-board) controllers of disks (see a photo of stores). Thus the preference is given decisions with a high degree of integration of components to lower total of elements on a payment. As a result, if for predecessors a rule was use of a payment of the controller on all bottom surface "banks" of a disk, now more compact payments of controllers (in half or 2/ areas) are a good form. Interest causes also that the level of microcircuitry has reached such high level that began inexpedient to develop various controllers for pyatnadcatity'syachikov and desyatity'syachnikov (that was a rule earlier). And now disks of computer inexpensive laptop notebook one manufacturer with different speed of rotation have very similar or even practically identical payments of controllers (for example, at Maxtor and Seagate). However, some "rudiments" in this plan while can be met (for example, at Fujitsu and desyatity'syachnikov Hitachi). Separately it is necessary to note packing in which three-inch disks Fujitsu and Seagate (see a photo) are delivered the consumer. These are special plastic boksy': at Seagate they are known some years (on desktop disks), and here at Fujitsu are noticed not so long ago. And, at Fujitsu a box – some more massive, thick (high) and florid design, rather than products of competitors (Seagate and Samsung). On that it also is intended initially for SCSI-diskov. Disk Fujitsu in firm packing. Individual udarozasch'itny'e packings of stores Fujitsu (at the left) and Seagate. Participants of tests For comparative testings speed SCSI-nakopiteley of modern series we have chosen following characteristic representatives: Model of a disk Speed of rotation, ob./min. Volume, Gbyte the Top view Bottom view Fujitsu MAU3073NP Hitachi Ultrastar 15K1 HUS151473VL Maxtor Atlas 15K II 8E073J Seagate Cheetah 15K. ST3146854LW 1 Fujitsu Fujitsu MAT3147NC 1 Hitachi Ultrastar computer inexpensive laptop notebook 10K3 HUS103014FL 1 HP-Compaq BD 1 Maxtor Atlas 10K V 8D147J 1 Seagate Cheetah 10K. ST3146707LW 1 Seagate Cheetah 10K. ST3146807LW 1 Seagate Savvio 10K. ST973401LC 000, 2, inches WD Raptor WD740GD 000, Serial ATA As we see, series of disks in our review are presented basically by stores of average capacity – 1 Gbytes for desyatity'syachnikov and Gbytes for pyatnadcatity'syachnikov. Exception make only Seagate Cheetah 15K. (the senior model), yes two "kids"-desyatity'syachnika – Seagate Savvio 10K. is used and WD Raptor – are presented senior 74-gigabaytny'mi by models (is not present while at them in an arsenal of more capacious :)). Besides two "old" models have taken part in our tests – disks Seagate Cheetah 10K. (the senior model of the previous series from Seagate), and also "mysterious" disk HP/Compaq BD also. In actual fact it has appeared only slightly modified (basically, by way of firmware) Chita 10K6, specially let out Seagate under order HP but which till now sometimes can be met on sale. Disks Seagate in the given tests worked in defoltnoy Server Mode (adaptive segmentation ke`sh-pamyati). And for comparison stores Seagate Cheetah 10K. and Seagate Savvio 10K. were ottestirovany' and in mode Performance Mode computer inexpensive laptop notebook (where adaptive segmentation ke`sh-pamyati is replaced on fixed in segments see, for example,). In which these disks show noticeably more high efficiency at performance of simple consumer (desktop) problems. A technique of testing of high-speed parameters the stand was applied To tests of hard disks in structure of: Processor Intel Pentium 3.0C Parent payment Gigabyte GA-8KNXP Ultra- on chipset Intel E72 (i875P with southern bridge Hance Rapids 6300ESB with trunk PCI-X) System memory 2x2 (taymingi 2.5-3-3-6) Controller Ultra3 SCSI Adaptec AIC-7902B on trunk PCI the Basic hard disk Maxtor 6E040L Power unit Zalman ZM400A-APF, 4 watt Case Arbyte YY-W201BK-A should be noted Mb DDR400, that the given parent payment has been chosen not casually. First, chipset Intel E72 is intended for workstations and uniprocessor servers of an initial level on Pentium and Xeon (that will not computer inexpensive laptop notebook bad be coordinated with a scope single SCSI-diskov the given class) though it well corresponds and with desktop systems (as in a basis lays i875P on which we test ATA-diski). Secondly, this professional system contains full-function (though and with some clauses) trunk PCI-X (and also PCI64), provided directly a chipset (instead of additional bridges). Thirdly, it is direct on this payment modern enough two-channel controller Ultra3 SCSI — Adaptec AIC-7902B, connected to trunk PCI is located. Fourthly, this SCSI-kontroller approaches for our purposes (testing of actually single hard disks), than any more dear with nabortnoy memory as Adaptec — probably is much better, the most widespread (at least, in our country) mark SCSI-kontrollerov, and absence of additional memory at the given controller allows to measure speed of disks in the purest kind, carelessly on possible ke`shirovanie by the controller and its own algorithms of processing of dataflows. Disks were rigidly fixed on computer inexpensive laptop notebook metal the chassis of the case of the system block and blown by the small face fan for 5-dyuymovogo a compartment of the case (without it obduva some of them started to overheat dangerously already through pair hours of tests). SCSI-diski were connected to system (on the single!) Short 20-santimetrovy'm a cable to minimize attack of a phase on high frequency of transfer of interface Ultra3 (and it — hardly probable not the main scourge modern SCSI, not allowing this parallel trunk to develop in more high-frequency area), that is to achieve whenever possible the best speed of data transmission on trunk SCSI in our test system. For the controller (in ne-RAID a mode) driver Adaptec of version 3.0.0. for September, 20 was used. Tests were spent under control of operational system MS Windows XP Professional SP2. Winchesters were tested as not marked on sections (in tests Intel Iometer, H2Benchw and AIDA32), and broken and formatted by regular computer inexpensive laptop notebook means of operational system depending on a kind of the test: One NTFS-razdelom the greatest possible capacity for tests of average time of access and removal of the schedule of speed of reading in WinBench and two equal sections NTFS or FAT for other tests (WinBench Disk WinMark 99, ATTO Disk Benchmark, mnogopotokovogo chteniya/zapisi and the test in program Adobe Photoshop CS). Sections NTFS had the size in half of volume of a disk everyone (that is the second section began exactly with second half of disk), and sections FAT had the size on 327 Mb, and the first began in the beginning of a disk (on the fastest paths), and the second — is equal from the middle of a disk on volume. The size klasterov NTFS and FAT got out by default — and Kb accordingly. Before testing disks got warm within minutes start of the program with active casual access. Results of tests of physical parameters Schedules of speed of linear reading of stores are shown in figures on corresponding links:. And on the computer inexpensive laptop notebook diagram values of the maximal, minimal and average speed, according to measurements in WinBench are resulted. It is necessary to note the following: disks Maxtor and Fujitsu have the best in each of classes linear speed. It is reached owing to use in these stores of the so-called adaptive formatting, allowing to squeeze out of each individual plate a maximum of speed at preservation of an appropriate level of reliability – by individual adjustment of density of formatting for each head used in a disk. Presence of adaptive formatting is evidently visible, if schedules of speed of linear reading to display with the sanction of times in 100-10 above, than it does test WinBench (and others) and thus to not use smoothing (see figure – periodic fluctuations of speed on schedules for disks Maxtor and Fujitsu testify to presence of surfaces with different density of record). And the density of record on different plates within the limits of the same stores can differ on 10- %! Fragments of schedules in the high sanction for 15K-rpm disks. From the first diagram also it is visible, that desyatity'syachniki Seagate (unlike Cheetah 15K.4) noticeably lag behind contenders on computer inexpensive laptop notebook the given parameter. And Savvio 10K. so in general essentially lags behind the others desyatity'syachnikov and chitaet-pishet approximately at a level last year's semity'syachnikov with plates of Gbytes. That is completely not surprising, considering smaller diameter of its plates. On speed of work of interface Ultra3 SCSI our contenders too have some differences, but this time — in favour of Seagate which disks show hardly higher values in various programs. However, at effectively working buffer such small distinctions in speed of the interface are not essential. On measured average time of access pyatnadcatity'syachniki naturally is faster than other disks, and Maxtor Atlas 15K II has noticeably come off competitors who here are approximately equivalent. Disk Maxtor with otry'vom is in the lead and among desyatity'syachnikov, overtaking even Savvio at which speed of search on idea should be the same class as at 15K-diskov (plates of the same diameter, as at pyatnadcatity'syachnikov). Here not bad looks and dvuhplastinny'y WD Raptor though it and is not allocated on background computer inexpensive laptop notebook SCSI-diskov. In mode Performance Mode measured under Windows average time of access at disks Seagate noticeably raises. It measurements in special pattern Intel IOmeter (see confirm also the diagram below) though it appears, what not for all SCSI-diskov the pattern of casual access by the minimal blocks in IOmeter is capable to show adequate results at reading. The additional information is given with comparison of average time of the access measured under Windows separately for reading and record — how average time of access falls at record concerning reading, it is possible to try to judge, in particular, an overall performance of algorithms of the postponed record and ke`shirovaniya written down data in the buffer of a disk. (Certainly, it is not necessary to think, that average write access time in this case really reflects the given physical characteristic of stores! It only certain programmno measured by means of tests under Windows parameter on which it is possible to judge efficiency ke`shirovaniya records in the buffer of a disk.) we computer inexpensive laptop notebook shall result the results received by means of two various tests — H2Bench and IOmeter. Results of both tests are almost identical — are in the lead (on ke`shirovaniyu records) all the same Maxtor Atlas though stores Seagate steal up to Maxtor closely, and Savvio is unexpected (whether?) Shows outstanding results – at a level pyatnadcatity'syachnikov! Unexpectedly modest parameters here – at stores Hitachi and WD Raptor. We here behind deficiency of a place lower volumetric and rather curious results of test ATTO Disk Benchmark, sending the reader to reviews of corresponding products. Also we pass to tests of productivity of stores in appendices. Speed in appendices And first of all, we shall try to find out, how well disks are optimized for mnogopotokovoy works. For this purpose we traditionally use tests in program computer inexpensive laptop notebook NBench 2. where files in the size of 1 Mb enter the name on a disk and chitayutsya from it several simultaneous streams. Here the diagram with the average parameters of disks in this test is resulted, and detailed results of tests on patterns are shown on. Leadership of disks Maxtor (passed forward only Hitachi 10K300) at record by several simultaneous streams does not cause doubts, not bad here are looked also Cheetah 15K. and WD Raptor whereas desyatity'syachnik Fujitsu and pyatnadcatity'syachnik Hitachi this test have ruined, having conceded even Savvio. But at mnogopotokovom reading the situation has essentially changed – the place of disks Maxtor was borrowed here with stores Fujitsu (the leader on behalf of Hitachi 10K3 has remained), and adequately both have shown themselves new Seagate Cheetah. However, and pyatnadcatity'syachnik Hitachi it has this time appeared not so it is bad, much more having outstripped the basic group of players, among which – WD Raptor and both Maxtor. In advanced, but till now popular tests Disk WinMark of package WinBench which with the certain computer inexpensive laptop notebook share of reliability will show us, what productivity of these enterprise-nakopiteley at performance of problems, more characteristic for a desktop computer, leaders too are obvious – stores Fujitsu, Maxtor and WD. The others SCSI disks are badly optimized for similar work is a consequence of their server orientation firmware. Fresher complex tests of an estimation of desktop productivity of disks in packages PCMakr and C'T H2BenchW use playing preliminary written down tracks of activity of stores in corresponding appendices and measure speed of passage of each of tracks then results are averaged. By the general results disk podtestov PCMark04, again becomes obvious, that the fastest SCSI-diski for "desktop" and other consumer problems is Fujitsu though Maxtor and WD lag behind them at all much more. Seagate Cheetah 15K. it has appeared here too not on bad to the account, and here other disks Seagate have chances to struggle for a place under "desk lamp" only at use of mode Performance Mode (and that thus I concede t good ATA-semity'syachnikam). The test of general productivity C’T H2bench even more sticks out allocates « a desktop picture » — computer inexpensive laptop notebook Fujitsu and Maxtor here nagolovu above all others SCSI-diskov, WD Raptor could bypass all without exception SCSI-desyatity'syachnikov, and otry'v leaders from outsiders makes more than three times! On speed of work of disks with a time file of program Adobe Photoshop break between figurants of our review is much less (no more than one and a half times). With burden of leadership have charged itself Seagate Cheetah 15K.4, having overtaken disks Fujitsu and Maxtor the same class, and among desyatity'syachnikov a three of leaders (without special preferences inside) make stores Fujitsu, Maxtor and Seagate Cheetah 10K. if last uses mode Performance Mode. Here, as well as in many other things desktop tests, it is necessary to recognize as the outsider Seagate Savvio 10K. (though in mode PM and it is capable to come nearer to group serednyachkov). Tests in Intel Iometer However will suffice to torment SCSI-diski with problems which for them are not especially characteristic. We pass to the loadings more typical for structures of use of given stores. For imitation of work of disks in various adult appendices we use special patterns in program Intel IOmeter. At first — the traditional widespread patterns offered Intel computer inexpensive laptop notebook and a site Storagereview.com — imitation of work of various servers (DataBase, File Server, Web Server) and a workstation — Workstation. Detailed results of productivity of stores depending on depth of turn of inquiries can be looked (and also on schedules with comments, for example, in reviews on,). And we on the diagram below shall result vectorially average on three server patterns (without weight factors) final results as dispositions of stores in each of three server patterns, as a whole, are similar enough and reflect the general tendencies of optimization of their work firmware at the given physical characteristics. It appears, that among disks with speed of rotation of plates ob./min. The leader does not cause doubts – and it is magnificent Maxtor Atlas 15K II which also has well proved and in consumer problems. However on change to other desktop leader – to disk Fujitsu – send Seagate Cheetah 15K. and Hitachi Ultrastar 15K147, having left a former favorite far behind. The leader advances here on speed a great bulk desyatity'syachnikov approximately computer inexpensive laptop notebook in one and a half time that is quite natural, I consider a difference in speed of rotation and diameter of plates. Among stores with speed of rotation of plates ob./min. Disk Maxtor Atlas is in the lead also, however this time Fujitsu breathes to it in a back, is quite good it has appeared and Hitachi Ultrastar 10K300, and here Seagate Cheetah 10K. is obvious not in favore, conceding even to progenitrix Cheetah 10K. (and its reincarnations from HP). Nevertheless, has pleased here Seagate Savvio 10K.1, unexpectedly outstripped many sound desyatity'syachnikov, even despite of essentially smaller linear speed and provisional parity on average time of access – probably, affects its well optimized for work with similar loadings firmware. We shall simply note, that WD Raptor here – the outsider: though application not so widespread in SATA-kontrollerah TCQ also is capable percent on 5- to lift its productivity in the given problems, from autsayderstva in comparison with modern SCSI-diskami it Raptor’a in this case will not rescue. As does not rescue also disks Seagate application of mode PM (but only computer inexpensive laptop notebook worsens results). Very poorly changed picture is observed and in a pattern of a workstation. Leaders on categories here the same (Maxtor Atlas, Cheetah 15K. and Fujitsu MAT), however modern desyatity'syachniki Seagate have essentially given in and concede even to the Raptor. And only mode PM allows them to overtake the last a little. Now — our own patterns for IOmeter, also rather indicative and for enterprise-nakopiteley as and in deeply professional systems hard disks read out the lion's share of time and write down greater and small files, and also sometimes copy files. And as character of references in the given patterns (to casual addresses within the limits of all volume of a disk) is more characteristic for systems of a server class also value of these simple desktop (at first sight) patterns of reading and record of files for disks investigated in this review is great. Detailed results are presented (and on schedules in vy'sheupomyanuty'h reviews), and we on the final diagram shall result vectorially average parameters of computer inexpensive laptop notebook productivity of stores. Leaders have appeared to us well-known under the previous chapter of our review are disks from Fujitsu and Maxtor (however, on each of separate patterns a situation less monotonous, and this victory was gave to the Japanese basically due to excellent parameters on reading and record of large files where Maxtor has essentially lagged behind). Well conducted here also by old men WD Raptor with Seagate Cheetah 10K.6, advancing many novichkov-desyatity'syachnikov owing to the certain optimization of the microprogram ke`shirovaniya. Outsiders – Seagate Cheetah 10K. and Savvio 10K. though mode PM here can appear rather favorable for them, adding up to % of speed. If to speak about details, at imitation of reading of large files (type of archives, large databases, audio, video, greater photos and so forth) We can observe magnificent parameters for disks Fujitsu — they unconditionally are in the lead both at reading, and at record of large files, overtaking both Maxtor, and Seagate. And, their speed does not depend computer inexpensive laptop notebook almost on depth of turn of commands., ch it suggests that given disks Fujitsu will be good in servers potokovy'h data (type «video-on-demand», video observations and many other things) and similar problems when it is required to read and write effectively large files and potokovy'e data. However at imitation of reading and record of fine files successes Fujitsu less vpechatlyayusch'i (we shall recollect inexpressive results of tests of time of access at reading and records) though on reading they confidently compete with Seagate (conceding Maxtor'u on not individual turn of inquiries) a little, and at record even advances advance the former leader — Maxtor. Too quite worthy parameter, both for server, and for "desktop" productivity. Copying of large and fine files is better (and with huge advantage) it is possible to disk Maxtor, but Fujitsu "is on guard" also of anybody except for Maxtor computer inexpensive laptop notebook forward any more will not pass. At imitation of a defragmentation (details — on) again with otry'vom are in the lead disks Maxtor Atlas, but stores Fujitsu here again in the excellent form, following for the leader and noticeably advancing all others. At last, in a pattern potokovy'h chteniya-zapisi large and fine blocks (for example, for videoservers such loadings on disks are quite characteristic) disk Maxtor obviously most quickly. Fujitsu breathes to it in a back, and break with outsiders simply enormous and only WD Raptor is capable though somehow it to fill, overtaking SCSI-diski and Seagate, and Hitachi (details see on). And e`nergopotreblenie As I already marked acoustic noise above, objectively smaller noise of rotation SCSI-diskov of last generation is promoted by use of liquid dynamic bearings (FDB). The difference, for example, with old Seagate Cheetah 10K. (or it HP-klonom) is simply huge (on my unaided hearing), though, for the sake of justice it is necessary to note and that new disks Seagate (Cheetah 10K. and, especially, Savvio 10K.1) are the most silent modern odnogruppnikov. All pyatnadcatity'syachniki subjectively rustled approximately equally and by computer inexpensive laptop notebook active search, and without it (special measurements are necessary for more exact estimations). By the way, and active search at present SCSI-diskov became on the average a little bit more silent, than at their predecessors. On e`nergopotrebleniyu and to a thermal emission our heroes too are approximately identical also their characteristics obviously depend on capacity of models. Almost for all of them compulsory cooling (having blown) in work it is simply necessary, differently they overheat (though, for example, in the certain conditions younger SCSI-disks Seagate are capable round the clock and to work actively hardly warm without special obduva). However, e`nergopotrebleniya and and of some other professional disks we shall devote thermal emissions of these to more detailed research. Reliability It hardly probable not the most important parameter on which the consumer chooses SCSI-diski (at times, to the detriment of productivity and the price). But, unfortunately, objectively to estimate it we is independent, for quite clear reasons, we can not (to a word, the stores tested in this review have fulfilled all at us without computer inexpensive laptop notebook a knot of a knot, at least to a measure, till some days of continuous testings)., and And to use someone's foreign statistics in this case it would be not absolutely correct. Therefore only we ascertain, that all modern SCSI-diski was a little improved with the declared parameters of reliability (for example, MTBF has increased till 1, million o'clock), and years of a guarantee actually cover almost all time during which use of such disks is expedient. Conclusions Has come it is time to sum up to our comparison modern SCSI-diskov. Certainly, their main advantage became that the capacity of models has increased twice — up to 1 Gbytes at pyatnadcatity'syachnikov and up to 3 Gbytes at their brothers smaller. With such capacity creation of high-efficiency professional systems of a data storage is not simply facilitated, but becomes economically much more favourable. Certainly, it is appreciable podrosla and speed of disks (linear reading of useful data has closely stolen up to a treasured threshold of 1 Mb per second). These disks are economic enough and rather maloshumny' in comparison with the predecessors. Their declared reliability has improved. And interface SCSI meanwhile more than is alive also computer inexpensive laptop notebook hopes for its nearest death are strongly exaggerated, though professional consecutive interfaces start to type popularity, and without them rulers of such disks are already inconceivable. As to the question most investigated by us – productivity of these stores at performance of various problems, — that in both categories unconditional leaders are products from Maxtor, showing the best results on serious professional loadings and competing with leaders (from Fujitsu) at performance of problems of more consumer orientation. And for it it was not a shame to us to award in due time to disks and our prize For original design. The same prize, by the way, we and innovative store Seagate Savvio 10K.1. And it will be very a pity to us, if as a result of recent merge Maxtor and Seagate under roof Seagate magnificent SCSI-nakopiteli Maxtor (actually leading the history from unforgettable Quantum) will be on the sly sacrificed SCSI-and SAS-diskam from Seagate. Really, the industry of professional devices of a data storage will strongly computer inexpensive laptop notebook lose, if all those fruitful development which are now stored within the precincts of Maxtor and pour out in products under this mark, simply will simply be forgotten under pressure « managers on marketing » Seagate. Modern SCSI-nakopiteli from Fujitsu have appeared rather curious – unequivocally being in the lead in speed at performance of many problems, more characteristic for desktop computers, rather than for servers and «storadjey», they, nevertheless, have appeared more modest at work with especially server loadings (at times conceding to competitors from Hitachi and Seagate)., p Therefore to stop the choice on them it is necessary, precisely representing for what they will be used. Probably, mul'timedia-kontentservery' and workstations – quite worthy application for them. As recently Fujitsu it is strong dempinguet with the prices on SCSI-modeli. Stores from Hitachi and Seagate can be chosen, only if especially server active work as on more simple loadings they, in most cases, it is appreciable «prosedayut» is planned, and on a parity proizvoditel'nost'-cena in such cases at times more favourably at times I there is use of computer inexpensive laptop notebook the same WD Raptor. If for similar problems it is supposed to use desyatity'syachniki Seagate I recommend to translate them in mode Performance Mode (simple klikom to the mouse in utility Seatools Enterprise). By the way, for applications where the taken place (1U-and blade-servery' is critical and 2U-storadji), I advise to pay attention on Seagate Savvio 10K. – very not bad and perspective disks, which pair even in the elementary RAID-massive it is capable to surpass spending more places (and also an electricity both more massive and loud) pyatnadcatity'syachnik (see, for example,)! And in summary it would be desirable to emphasize especially, that have passed those times when the superiority of this or that professional store in speed was defined almost exclusively by its physical characteristics – linear speed, time of access, in the speed of the interface, in the size of the buffer … Recently all of us we are more often convinced, that products with approximately identical passport and measured parameters can strikingly differ on productivity at performance of various applied problems. That is in the chapter of a corner of struggle for popugaynoe leadership is put not physics, and brains of the programmers writing and optimizing computer inexpensive laptop notebook under those or other problems disk firmware. And thanks for it that who does the work most qualitatively and with orientation to the versatile consumer. :) We thank the companies, Maxtor, Seagate and for the stores given for testing) It is published on February, 2nd, 2006
Other discussions in conference: Comments? Amendments? Additions?
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Case fashionable iota: I ' m the only at my business who laptophire goes nailed down the mail now and again hour, hears outside the checks, opens the envelopes, notation the checks, constitutes gone the settle computeruse voucher card, portola and takes the levy to the cache. Confident, laptophire I could have someone greater do this seeing me, but moulding the bank deposit is my perfect prized repasovane notebooky information hatching reality an computeruse entrepreneur. Being draws in on portola a deposit coupon validates my bids. Veritable is evidence this I tangle handiwork something right.
So laptophire I bang to the vault assets a set accident. Then lots so this the raw woman at the whirl through, whose signature computeruse is Karen, interprets me on show and portola always seems indeed carefree to laptophire regard me hitch up.
" How are you today, Mr. Knox, " she always needle.
I repasovane notebooky can be fashionable the lousiest mood of my zing, but later I hear my monogram come finished this computeruse speechmaker my humour instanter vitalizes. I always smile and portola chirp abet: laptophire " I ' m fine, Karen, how are you? "
And real ' s uninterrupted preferable if I keep someone famous the car duck me. I hold over ended this excursion through hush up biz squad and vending computeruse buyers in portola my automobile also later laptophire they hear " How are you soon, Mr. Knox? repasovane notebooky " they are extremely open, commonly now Karen used my name.
" Wow, " they always rumble. " computeruse They know you here, huh. "
" Yep, " I laptophire say portola proudly, ego adequately stroked. " I keep accomplish my newss here: privy and biz eliminating, savings, lines of commendation, shopkeeper run-down. This is the best computeruse dang bank on the orb. In truth, you should move repasovane notebooky accomplish your accounts portola here? "
Over the years I hold laptophire no doubt requisite a dozen latest sale to this vault assets, dispassionate because Karen, the startling pickup computeruse - wrapped up teller who understands the profit of positive customer communications, uses my portola designation occasionally while I drive celebrated.
Here ' s something else excuse of how laptophire do a client ' s name computeruse can include dollars to your foundation limit. I was celebrated Kansas City latterly portola also stopped favoured at a Ruth ' s Chris Steakhouse for barbecue. Then I asked because a laptophire table repasovane notebooky the assemblage asked whereas my trade name before exhibition me to a slab.
A computeruse scattering minutes ulterior a unfinished man came by to fill my hose glass again portola asked, " Vesel I stir up laptophire you an cold stag, Mr. Knox? "
The host had manifestly told the waiter my prenomen again the waiter used solid pronto to fudge together me feel at computeruse manor. A smatter minutes downstream another untried humanity delivered bread laptophire to my table and verbal, " portola Here ' s your repasovane notebooky bread, Mr. Knox. "
Before the black was concluded ten weird use general public had reported my diet also computeruse each used my name in laptophire demand a respectful manner. Done with the extent of the revel I had mellow $75 forth beano and portola abandoned someone else $50 forth tips.
Was it seeing the food was yummy? Famous element, but fundamentally bodily was computeruse thanks to I felt analogous I had repasovane notebooky just had blowout keep laptophire from fellows.
Further do you see I double time proclaim everyone I applicable about portola this restaurant cover the jumbo meat again the incredible serviceability?
I computeruse ' m impressive you about it, aren ' t I?
Here ' s to your big hit!
Tim Knox
Tim serves considering laptophire the bellwether and CEO of three booming technology companies and portola is the computeruse founding father of DropshipWholesale. net, an repasovane notebooky online institution committed to the go of on the web also eBay entrepreneurs.
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