From: Dale <rdalek1967@gmail.com>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Questions about SATA and hot plugging.
Date: Tue, 14 Dec 2010 11:49:00 -0600 [thread overview]
Message-ID: <4D07AE0C.5020305@gmail.com> (raw)
In-Reply-To: <AANLkTinx5GN=toPc82YuLKGUnq3oSWAP+PAxFn4gRSpJ@mail.gmail.com>
Mark Knecht wrote:
> On Tue, Dec 14, 2010 at 9:13 AM, Dale<rdalek1967@gmail.com> wrote:
>
>> Mark Knecht wrote:
>>
>>> On Tue, Dec 14, 2010 at 8:42 AM, Dale<rdalek1967@gmail.com> 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
:-) :-)
next prev parent reply other threads:[~2010-12-14 17:52 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-14 16:42 [gentoo-user] Questions about SATA and hot plugging Dale
2010-12-14 16:57 ` Mark Knecht
2010-12-14 17:13 ` Dale
2010-12-14 17:36 ` Mark Knecht
2010-12-14 17:49 ` Dale [this message]
2010-12-14 20:17 ` Volker Armin Hemmann
2010-12-15 11:52 ` Dale
2010-12-15 0:02 ` Stroller
2010-12-15 11:54 ` Dale
2010-12-15 17:49 ` Volker Armin Hemmann
2010-12-15 18:15 ` Mark Knecht
2010-12-15 18:24 ` Dale
2010-12-15 18:39 ` Mark Knecht
2010-12-15 18:42 ` Volker Armin Hemmann
2010-12-15 19:50 ` Dale
2010-12-15 16:59 ` Andrea Conti
2010-12-16 6:10 ` Stroller
2010-12-14 17:01 ` Helmut Jarausch
2010-12-14 17:20 ` Dale
2010-12-14 17:34 ` meino.cramer
2010-12-14 17:50 ` Dale
2010-12-14 17:40 ` Mark Knecht
2010-12-14 17:10 ` meino.cramer
2010-12-14 17:47 ` Dale
2010-12-14 18:28 ` meino.cramer
2010-12-14 18:34 ` Jarry
2010-12-14 18:48 ` meino.cramer
2010-12-16 0:24 ` James Wall
2010-12-15 16:39 ` Andrea Conti
2010-12-15 19:35 ` [gentoo-user] " Grant Edwards
2010-12-15 19:58 ` Mark Knecht
2010-12-15 20:07 ` Volker Armin Hemmann
2010-12-15 20:41 ` Mark Knecht
2010-12-15 21:02 ` Volker Armin Hemmann
2010-12-15 21:16 ` Alan McKinnon
2010-12-15 21:46 ` Mark Knecht
2010-12-16 7:31 ` Alan McKinnon
2010-12-16 15:29 ` Volker Armin Hemmann
2010-12-16 15:47 ` Mark Knecht
2010-12-16 18:05 ` Dale
2010-12-16 18:31 ` Mark Knecht
2010-12-16 19:10 ` Dale
2010-12-16 19:48 ` Mark Knecht
2010-12-16 20:08 ` Grant Edwards
2010-12-16 20:24 ` Dale
2010-12-16 20:42 ` Mark Knecht
2010-12-16 21:22 ` Dale
2010-12-27 17:31 ` Volker Armin Hemmann
2010-12-27 17:45 ` Mark Knecht
2010-12-27 18:11 ` Volker Armin Hemmann
2010-12-16 22:05 ` Volker Armin Hemmann
2010-12-16 6:21 ` Stroller
2010-12-16 6:23 ` Stroller
2010-12-16 7:33 ` Alan McKinnon
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