Capacity drive of Card

[No One]

I have an older server machine with an Adaptec AHA-2940 UW card. Does
anyone know what capacity hard drive this card will support. I
currently have 9 GB drives hooked to it, but was thinking about geting a
larger one or two.

Thanks.

 

[Folkert Rienstra]

I have an older server machine with an Adaptec AHA-2940 UW card. Does
anyone know what capacity hard drive this card will support.
Any.

I currently have 9 GB drives hooked to it, but was thinking about getting a
larger one or two.

Thanks.

 

[johns]

Biggest drive NT 4.0 can support. I don't remember
anymore. Think I remember W98 wanting to hassle
over 40 gig or so, and I needed to enable large drive
support to get above that. Come to think of it, I believe
I remember W98 bitching above 500 meg. Hmmmm?
I think the best guess is knowing that the card has
drivers for NT 4.0

johns

 

[No One]

Biggest drive NT 4.0 can support. I don't remember
anymore. Think I remember W98 wanting to hassle
over 40 gig or so, and I needed to enable large drive
support to get above that. Come to think of it, I believe
I remember W98 bitching above 500 meg. Hmmmm?
I think the best guess is knowing that the card has
drivers for NT 4.0

johns

Uh...what? I was asking about a SCSI controller, not OS. The machine
runs ClarkConnect, which is based on RedHat 9.

 

[Eric Gisin]

Uh...what? I was asking about a SCSI controller, not OS. The machine
runs ClarkConnect, which is based on RedHat 9.

The answer is pretty much the same for NT and Linux: SCSI-2/3 is 4G sectors,
generally 2TB.

 

[No One]

The answer is pretty much the same for NT and Linux: SCSI-2/3 is 4G sectors,
generally 2TB.

That is interesting as the largest harddrive I can find for Ultra Wide
is 18 GB. Anything larger wants an 80pin connection.

 

[Peter]

That is interesting as the largest harddrive I can find for Ultra Wide

is 18 GB. Anything larger wants an 80pin connection.

???

"Ultra Wide" or "Fast-20" compatible drives are still available:
http://www.seagate.com/support/disc/specs/scsi/st3300007lw.html
Pick "LW" model.

 

[J. Clarke]

That is interesting as the largest harddrive I can find for Ultra Wide
is 18 GB. Anything larger wants an 80pin connection.

The 80 "pin" (if you examine it carefully you'll see that it doesn't have
pins per se) connector is called an "SCA" connector and just about any
drive that is available with one is also available with a 68-pin
connector--the signals are the same, what is different is that the 80
conductor also has the power and address-select lines on it so that the
drive can be hot-swapped cleanly and easily without any special carrier
other than the mounting rails. Most "modern" servers have SCA backplanes
and so the SCA drives are the most commonly available.

With Seagate drives, the 68-pin models end with "LW" and the SCA models with
"LC", so for their latest 148 gig 15K RPM drive the 68-pin model is
ST3146854LW and the 80 pin is ST3146854LC. Most dealers that have one
available will have the other if you're buying new.

Any SCA drive can be attached to a 68-pin cable using a simple adapter and
vice versa.