Ajde Tita ti uradi koji test onim Aya programom ... cisto informativno !!!

Sta mislite , da li FW upgrade-om mogu ocekivati bolje/brze perfomanse???
OCZ-VERTEX2                  
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Da li neko od vas radi secure delete i sl. stvari? Ima li pomaka po tom pitanju kada je reč o SSD diskovima?

Šta se dešava kada, recimo, enkriptuješ čtav ssd disk TrueCryptom, da li to radi kako treba?

Radio sam test cim je stigao
I ispalo je tacno kako je castor rekao
castor wrote:

Bićeš ograničen SATA2 standardom na nekih 300MB/s ± par MB. Ali će i tako da ti uši otpadaju kako radi… 😉 Po prvi put ćeš iskoristiti disk podsistem na kompjuteru 100%...

285-290,sad se ne sjecam,jer mi je memorija pravila problem,
Pa je i stari hdd crkao na stolu,od ljubomore,cega li,sa svim podacima.
Cijeli vikend sam bacio osposobljavajuci ga da samo spasim folder documents.

DS_Store wrote:

Da li neko od vas radi secure delete i sl. stvari? Ima li pomaka po tom pitanju kada je reč o SSD diskovima?

Nisam radio >secure delete< ali sam zato radio iDefrag.
I mogu ti reci da je letjelo ‘ludo i naopako’. Buduci da je >SD< malo zahtevniji po
pitanju perfomansi ipak mogu slobodno tvrditi da je mnogo mnogo brzi od ‘chigrastih velepamtila’. E sad po pitanju defregmentacije, nisam obracao puno
paznje.Ali na www Ocz-a je stajalo da uopste ne preporucuju(cak je i zabranjuju);
trosi se materija. Ali bilo je opet lijepo sve to gledati kako leti 😊  .

@ Budvanin,

Masala ! Rodio se vochich Bikonja !!! :woohoo: B)
Fine vrlo fine cifre :evil:  !!
Pitam se , da li je to do arhitekture lapa i da li ima razlike sa starijim modelima??

By the way koji ti model imas ?

Mb unibody 13’ late 2009
Mislim da se nista specijalno nije promijenilo ni u novijim modelima, s obzirom da se ovaj moj ssd pojavio negdje tokom februara
E kakav sam ja glupn 😊

MacBee wrote:

Nisam radio >secure delete< ali sam zato radio iDefrag.
I mogu ti reci da je letjelo ‘ludo i naopako’.

Zar nije jedna od poenti SSD tehnlogije to da ne moraš da radiš defragmentaciju? Ili je za to potrebna podrška za TRIM?

Post edited by: madamov, at: 2011/03/27 10:04

^ Ha cuj , htjelo mi se(onako radi fazona-a i da vidim kakav je u r/w akciji) !!!
Mozda je bio nesto i usporio ali sumnjam…vjerovatno sam dosao na tu ideju posle onih velikih update-a…haj ga znaj ?!

...ocigledno je da jos uvijek patim od psiholoskog ‘win-artritisa’ hahahaha !

Juče sam na onom redovnom 4D poslu dobio pitanje vezano za SSD i 4D, pa otkrih ovaj TechTip mog američkog kolege Džoša koji je i meni kratko objasnio šta je SSD i kako sve to interno radi:

Plaese note: the information in this Tech Tip applies to flash-based SSDs (in particular, MLC flash SSDs).

When considering flash-based SSD drives for a 4D installation it is important to understand the purpose of the ATA command called TRIM. Typical enterprise IT installations focus on things like RAID support and specific OS’s. When considering SSDs it is important to take some new factors into account:

The only 4D certified OS’s that currently support TRIM are Windows Server 2008 R2 and Windows 7.
There is no SSD that supports TRIM in RAID.
There are proprietary TRIM-like solutions for many SSD drives but you still must investigate whether or not these features work on your host OS and/or in a RAID configuration.

So why does TRIM matter? Here is an overview:
SSDs are structured in “blocks”, which contain “pages” of memory.
SSDs can read individual pages, but can only delete whole blocks.
So in order to perform a page deletion, the SSD must read the entire block into memory, figure out which pages are really deleted, and write the block back.
In fact this is a bit of a lie: SSDs don’t delete at all.
When you delete a file nothing happens at all in the SSD. The file is deleted from the OS file allocation table, but no modification is made to the disk. This is pretty much the same principal with mechanical HDDs; it’s also why data recovery is possible. So the issue is the SSD does not know which pages are deleted…
What happens is, over time all blocks will become occupied (they will contain some occupied pages). Some of these will be deleted files. So when it goes to write some changes, the SSD will need to first read the block, delete any empty pages, write the changes, and write the block back. I.e. every write becomes a read+edit+write. This is called ‘write amplification’ and it results in performance degradation.
TRIM is an ATA command that was introduced to alleviate this performance degradation. If an OS (and drive) support TRIM, the OS maintains the necessary information in order to inform the drive which pages have been deleted. Thus the SSD doesn’t need to do the read+edit+write dance. It can just write the changes.

The performance degradation is finite. It stops degrading once all blocks contain occupied pages. Current benchmarks indicate that drives without TRIM (or on OS’s without TRIM support) degrade by 25-35% performance and then don’t get any worse. In the end it’s still faster than an HDD.

But without some form of TRIM (either support for the standard TRIM command, or some proprietary solution) the only way to “fix” this problem is to reformat the drive, at which point the degradation starts again.

Now, you might ask, “why would all blocks be occupied of the drive is not full?” All SSD’s use a feature called ‘wear-leveling’ when writing data. What this means is, for example, if you write a 2GB file, it is split up into blocks (usually ~512KB) and written all over the disk; i.e. it is *intentionally* fragmented. This works because SSDs don’t have a seek time (no mechanical parts) so fragmentation is not an issue. This is done because flash memory cells support a finite number of writes before they fail. Wear-leveling ensures that no single cell is being excessively written to.

In conclusion, when evaluating SSDs for a 4D installation, it is important to take TRIM support into consideration.

Preuzeto sa: http://kb.4d.com/search/assetid=76257

Gde ima kod nas da se kupe ssd, i sta biste mi preporucili? nije mi bitan kapacitet vec da bude kompatibilan sa :

http://www.everymac.com/systems/apple/macbook/stats/macbook_2.0_white.html

i zanima me ako neko moze da mi objasni, kako da znam sa cime je jos kompatibilan, posto planiram upgrade na neki macbook pro unibody.

Ako je bilo, izvinjavam se, može li neko da objasni ovo:

If you have an OWC SSD, though, you don’t need TRIM. The SandForce controller in our SSDs takes care of this “garbage collection” as well as performs various other tasks that keep your drive running at optimal speed, without the drop-off that you see with other brands.

hm,ako je djelimicno istinito,pojasnjava samo meni sto sam se zaletio da uzmem plextorov sata III.Umjesto da uzmem tada jeftiniji OWC sata II.
al dok on uspori,da ako ubace trim za sve ssdove.

Hocemo li da napravimo jednu forum akciju da zatrpamo apple zahtjevima za trm eneblovanje? B)

mada,vidim da vecina ssd proizvodjaca nudi slicnu uslugu.
Plextor boasts that its SSDs will be equipped with a unique Wear Leveling algorithm that the company claims can prevent degradation of drive performance and prolong product life

http://www.plextoramericas.com/index.php/ssd

Uzimao bih ssd za MacBook pro Santa rosa, posto je stariji model kapiram da sam ograncen brzinom na nekih 150 MB/s, neka neko ispravi ako gresim, zbog svega toga izbor je pao na http://www.amazon.com/Kingston-SSDNow-128GB-SV100S2-128GZ/dp/B004BDORNI/ref=sr_1_1?s=electronics&ie=UTF8&qid=1313575949&sr=1-1

Hteo sam cisto da proverim vasa iskustva i sl, ako ima neka bolja varijanta i sl., posto sam sada na Lavu, trebalo bi da imam podrsku za trim zar ne?Svaki savet dobrodosao!

Santa Rosa bi trebalo da ima SATA2 kontroler, tako da možeš da uzmeš bilo šta sa SATA2 standardom. Ja bih ti rekao da giljaš od Kingstona, jer se manje-više ne zna koji je kontroler u kom modelu. Počeli su prvo da samo rebrandiraju Intel-ove sprave, pa su onda otišli sa nekim serijama na JMicron kontroler koji je golo govno, a od tada ne možeš da iščeprkaš koji je kontroler unutra.

U međuvremenu su svi drugi napravili svoje kontrolere (Toshiba, Samsung, Marvell) ili prešli na SandForce, tako da je Kingston u svemu tome ostao daleko. Istina, ne znam šta sada i kako prave (vidim da HyperX modeli imaju Sf-2281 kontroler); ali to je to.

Od trenutno najboljih ti je OCZ Vertex 3 (SATA3); ali kažu da imam bubica sa firmverom i da se ljudi žale na to. Dalje na raspolaganju imaš Crucial RealSSD M4 (koji je takođe SATA3); ali koji se odlično pokazao. Takođe, Mushkin Chronos DeLuxe i Patriot Wildfire su se odlično pokazali na testovima. To je što se tiče novijih.

Što se tiče starijih, tu ti je Crucial C300 koji je odličan. Ima malo sporije brzine pisanja (oni ograničavaju brzine pisanja po veličnama diskova) - 75/140/230 za 64/128/256GB modele.

Za početak - dosta. Što se tiče pitanja SATA2 ili SATA3 - svejedno ti je, bitno ti je da je dobar kontroler u SSD-u. Istina, kontroler na ploč će da te ogranič sa brzinom na nekih 300 MB, ali to je u svakom slučaju mnooogo brže u odnosu na 5400/7200 2.5’ HDD. Takođe, noviji SSD kontroler idu sa brojem IOPS-a i do 90k u sekundi, tako da i o tome treba da se razmišlja…

Za cijene, aktuelene modele i detalje - alternate.de…

Pozdrav.

Djole

Izlgeda da ima sata II ali je ogranicen na 150 mb, nesto je apple zamrsio http://forums.macrumors.com/showthread.php?t=721934

Post edited by: cheyenne, at: 2011/08/20 11:59

Post edited by: cheyenne, at: 2011/08/20 12:00