What is sata 2?

[padlius]

Hi I would like to know what is sata and I read in pcformat that you todays hdds are like a barrels and you only drink from them like straw. Thx

 

[505090]

sata is a interface protocol including the hardware and software used to interface with the computer.

Ide (ata and e-ata)is the old standard using the wide ribbon cable and has speeds of 100 and 133

Sata (Serial ata)is the new method with the thin cable speeds of 150 and 300 for 1.0 /2.0

Seeing as the only desktop drive that goes over 100 is the velociraptor and it only hits 105 or so sata 2.o is overkill in that respect. The other aspect is the software and newer sata drives offer additional benefits such as NCQ.

 

[padlius]

Will there be something new soon?

 

[505090]

Why off course there is it's already out.

SAS (serial attached scsi {Small Computer System Interface}

scsi is from the same period as ata and was the high performance option of servers and such with about a dozen variations there of, all of which were made obsolete by sata.

sas uses the same connectors as sata but a different software package/controller and has seeds of 300 and the upcoming 600. And once again although the speeds are overkill there are some advantages to sas over sata duplexing link aggregation...

All in all unless you are in a highly specialized environment get any version of sata and you'll be on the right track

 

[padlius]

How much sas cost? And what capasity is it holds?

 

[505090]

Here's a few of them

http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=2010150014%201035917796&name=Serial%20Attached%20SCSI%20(SAS)

don't forget you need a controller as well some mb's include one but not many you can find everything on the site above

 

[padlius]

Wow they are pricey. Ill rather wont buy it No money, I was just wondering.

 

[505090]

lol as i said for specialized environments in which case they can be worth the money. For desktop performance the best drive is below i'm saving up for mine

http://www.newegg.com/Product/Product.aspx?Item=N82E16822136322

 

[Translucency]

Actually, SATA is just another form of IDE just like PATA is.

You generally have two storage interfaces: SCSI and IDE. SCSI would also comprise the new Serial Attached SCSI (SAS) interface aimed at corporate customers. The difference between the two is its philosophy: IDE means the actual interface controller resides in the harddrive. The 'controller' is actually called a host adapter. So IDE is a different design philosophy than SCSI.

With SSDs doing 1300MB/s and up, Serial ATA is losing its edge because it lacks transfer speed. PCIe is being used to power high-speed storage devices now. Even SATA 6Gbps won't catch up fast enough.

 

[505090]

Actually, SATA is just another form of IDE just like PATA is.

With SSDs doing 1300MB/s and up

hence the serial ata descrition

and

what drive is reaching 1300 and what interface is it working on to reach that

all the ssd drives I've seen have average reads and writes in the low 100's

 

[Translucency]

Serial ATA description? What do you mean?

And proper SSDs already do almost 300MB/s such as Intel X25-M and X25-E. But the 1300MB/s drive i was talking about uses PCI-express since Serial ATA is too slow.

Super Talent RAIDDrive SSD Offers 2 TB

 

[505090]

i stand corrected the intel extreme drive hit 200 avg read/write still a long way short of 1300 though

thats not a drive its an integrated raid array of ssd's

But thanx now i get to call them in the morning and see how many grand they want for it, hopefully one of my customers will buy so it so i can benchmark it. It's a shame Super Talent doesn't even show it on it's website I'd love to see the data sheet on it.

 

[Translucency]

Advanced SSDs are using RAID0 internally to achieve higher speeds; so called multi-channel controllers. Using PCI-e as interface doesn't change that. SATA just isnt good enough for next-gen storage.

Its actually a full-fledged RAID controller with flash chips and a battery backup - the ultimate storage product if you ask me. You'll be seeing more of them over the next years, and they might even become very common.

 

[daft]

sata is a interface protocol including the hardware and software used to interface with the computer.

Ide (ata and e-ata)is the old standard using the wide ribbon cable and has speeds of 100 and 133

Sata (Serial ata)is the new method with the thin cable speeds of 150 and 300 for 1.0 /2.0

Seeing as the only desktop drive that goes over 100 is the velociraptor and it only hits 105 or so sata 2.o is overkill in that respect. The other aspect is the software and newer sata drives offer additional benefits such as NCQ.

im afraid you are wrong. several drive are now able to get above 100MB/s the seagate 7200.12 is a great example. 2 of my friends are getting over 110MB/s average reads on them. 1 of which put 2 in RAID0 and is getting 210MB/s average.

 

[505090]

Thanx guess i need to stay more up to date, but 110 is still no where near 300.

And the raid set up is an entirely different matter seeing as each drive is on its own sata connection and the cumulative bandwidth is then handled either by the southbridge or raid controller.