Mark Knecht wrote:
On Tue, Dec 14, 2010 at 9:13 AM, Dale<[email protected]> wrote:
Mark Knecht wrote:
On Tue, Dec 14, 2010 at 8:42 AM, Dale<[email protected]> wrote:
Hi,
I got one more hard drive to move over and it is SATA. Question one, can
the new mobo's do hot plugging for SATA drives? I have a plug on the
front
of the case and was wondering since it is on the front if they can be hot
swapped or if I need to shutdown then hook it up. If I can hot swap,
where
does the power come from? I know the drives I put in the case have a
separate power connection. How's that work exactly? Is that just for
external drives that have their own power?
I have two dries in here already. One I bought and one that was donated.
This is what hdparm reports:
fireball ~ # hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 6788 MB in 2.00 seconds = 3395.32 MB/sec
Timing buffered disk reads: 328 MB in 3.01 seconds = 109.06 MB/sec
fireball ~ # hdparm -tT /dev/sdb
/dev/sdb:
Timing cached reads: 6736 MB in 2.00 seconds = 3367.58 MB/sec
Timing buffered disk reads: 324 MB in 3.01 seconds = 107.69 MB/sec
fireball ~ #
Is that about normal? The mobo is 3Gbs/sec and the drives are too.
Shouldn't they be faster than that? I read at one time that SATA is
basically plug up and it works. Just checking if there is a setting I
need
to change.
Related to the above, in the BIOS, it is set to Native IDE. Should that
be
set to AHCI instead? Is that why it is slower than expected? Is that
good
to go with Linux as well? I have this set in the kernel and built in as
usual:
AHCI SATA support
Let me know if I am somewhat right on anything. Oh, I decided to name
the
new rig fireball instead of lightening. ;-) You may notice that in the
paste up above.
Thanks.
Dale
The SATA spec allows for hot plugging, so technically yes, but it also
assumes the drives are in some sort of container so that power and
signals are applied at the right time.
The plug on the front of your case is probably eSATA which looks
similar but has some small changes. What you want to do is figure out
which of your MB SATA ports are eSATA compatible and then run one of
those channels to the connector at the front inside your case.
Typically SATA drives are converted to eSATA external drives by
putting them in a case you can get at most computer shops for< $30 or
so.
Hope this helps,
Mark
I did hook the eSATA cable that goes to the front of the case to the eSATA
connector on the mobo. Thing is, I think they are all eSATA compatible tho.
I think that is what I read in the mobo book. Yea, I read the book. I
even followed the instructions for the CPU cooler too. lol
I was thinking it needed some sort of power for the drive tho. I didn't
think it was like USB stuff.
Thanks for the info.
Dale
One of my MBs had 6 SATA connectors but only two were eSATA compatible.
Power for my eSATA drive is supplied by the case.
Hope this helps,
Mark
It does. It was the one on the front that made me curious tho. I have
used USB for a while but was curious about how it works on the front
with no power for it. I think I'll leave that one alone for now. May
get brave another day tho.
Thanks.
Dale
:-) :-)
