I am doing a seminar on the topic SERIAL ATTACHED SCSI.Does anyone has a report and a powerpoint presentation

Pls give your email ID.if you have the information.or give me any link to a site wjich has the info.

Try these by typing a key word or two, you might be surprised.

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WISEGEEK: Clear answers to common questions

http://www.wisegeek.com/

What motherboard connection am I going to need for a 15,000 RPM Serial Attached SCSI (SAS) Hard Drive?

How much better is this than a standard 7200rpm hard drive? FYI, the motherboard I'm looking at is the EVGA 790i ultra sli

Well, you're going to need a SAS connection. No motherboards I know of have the port. You will almost certainly have to get a PCI-Express bus adapter for SAS.

I would caution against getting a 15,000 RMP hard disk. First of all, it is going to be very, very loud. It is also going to be very expensive. It would be much smarter to get a solid-state drive, or put a few 7200 RPM drives in a RAID 5 array.

Are 10 Gigabit Ethernet CX4 connectors the same that are used on Serial Attached SCSI applications (SFF-8470)? Are 10 Gigabit Ethernet CX4 connectors the same that are used on Serial Attached SCSI applications (SFF-8470)?

Although the connector housings may appear similar, it's highly unlikely that the cable assemblies as a whole are completely identical to one another to where you could actually interchange them. in fact, it's possible that you could cause permanent damage to a device if you accidentally do that. i could be wrong but, i hope you don't try to prove that. i've seen it happen w/ traditional scsi where someone used the wrong terminator becaused "it looked like it fit". he knew he was wrong when smoke started coming out of the raid enclosure. a *very* expensive mistake. and, no, it wasn't me. lol. i can't imagine why but, if you feel you need a solid answer, you can always ping one of these folks:

http://www.techcable.com/
http://www.computercablesource.com/

Serial Attached SCSI (SAS) cables vs 10Gigabit Ethernet Cables?

Are the Mini SAS X4 (SFF-8088) the same cable used in 10Gigabit Ethernet applications with CX4 connectors?

Definitely NOT. They're 2 completely different cables.

How many drives can be attached to a single SCSI controller?

I think it's 16 but I'm not sure

The last are SCSI-3
The SCSI-3 SPI-1 /ULTRA AND ULTRA/WIDE
SCSI-3 SPI-2 ULTRA2 can accept up to EIGHT (8)
drives.

The SCSI-3 SPI-2 ULTRA2/WIDE
SCSI-3 SPI-3 ULTRA3
SCSI-3 SPI-4 ULTRA320 can accept up to 16 drives.

SPI refers to parallel bus transfer, ULTRA refers to DATA SPEED TRANSFER.
For example ULTRA320 IS 320Mbps

The newest type of SCSI is one with serial interfase, SAS (Serial Attached SCSI) which can accept up to 128 drives and with speeds up to 3Gbps (three gigabits per second).

I am really confused about hard drive solid state drives and SAS (Serial Attached SCSI)?

1.This is what i don't get about solid state drives,you buy a solid state drive and 1 or 2 extra harddrives you hook them up but do you install all the programs os and component drives ONTO THE SOLID STATE DRIVE NOT THE HARDDRIVE then when you want to save a file you save it to the HARDDRIVE NOT THE SOLID STAtE DRIVE IS THAT HOW IT WORKS OR NOT.

2.This is what i dont get about SAS (Serial Attached SCSI) is it faster then a solid state drive and a harddrive. or can you just buy a SAS (Serial Attached SCSI) and there is no need for a harddrive or a solid state drive because the SAS (Serial Attached SCSI) is already faster then both of them.

Thanks

"Solid State Drives" essentially are RAM (not NVRAM, real RAM), with a capacitor and a hard drive. You read an write to the RAM. The data is then copied to the hard drive. When you shutdown the computer, the capacitor powers the RAM and hard drive long enough to copy any unwritten data to the hard drive. The hard drive stores your data while the power is off. See, your computer doesn't have to wait until the write completes on the hard drive - as soon as it is done writing to the RAM, the computer can move on to other tasks (this copying to the hard drive is all handled by circuitry built into the solid state drive). Likewise, reading from RAM is very quick. So solid state drives are extermely fast. But it still needs a hard drive to store the data when the computer is powered off.

There are several different types of interfaces which a computer can use to talk to a hard drive. IDE, EIDE, ATA, SATA, SCSI, iSCSI, SAS, FC-AL, etc. These specify the connection (votages on the various wires, etc., what the various signals on the wires mean, etc.), and the protocol (i.e. what kind of handshaking is going to go on to communiate (i.e. computer sends the hard drive saying "I'm going to write some data to you", the hard drive responds with a signal that means "okay", the computer starts sending data, the hard drive sends a signal that means "wait up, my buffer is getting full", etc.). I'm not as familiar with SAS as some of its predicessors, but if you have two more or less identical drives, one uses EIDE and one uses SCSI, one if them might be faster because the protocol itself is faster, etc. So the type of interface you have can have an impact on speed.

Having said that, solid state is going to have a far greater impact on speed than the interface. Having said that, if you are able to go really fast because you have solid state, you are going to want to use the fastest interface around in order to maximize throughput.

One could have a solid state drive that is IDE, EIDE, ATA, SATA, SCSI, SAS, FC-AL, etc. They are two totally unrelated things.

Why it is not a good idea to have Disk drives and Tape drives attached to the same SCSI bus in a server?

I know there are some companies that do not support that kind of configurations (e.g. HP and IBM). Is there any company that supports that configuration?

You wanted to know how to get to vmk? just go vmk.com

Ultra320 SCSI hard drive which attaches with ribbon cable. How do I determine the number of pins needed?

I am buying a new SCSI hard drive and need to determine the number of pins needed. I have an Ultra320 interface. I have 2 SCSI hard drives already attached with ribbon cable.

Most all of the ultra 320 cards i have seen use 68 pin connectors. Best bet is too look up the information on the card online through the manufacturers website