Re: [zfs-discuss] Force SATA1 on AOC-SAT2-MV8

2007-11-05 Thread Eric Haycraft
That explains the problems; however, I am able to get them to run by jumpering 
them down to SATA1 which brings me back to my original question. Is there a way 
to force sata 1 without cracking the drive case and voiding the warranty? I 
only have so many expansion slots, so an 8 port supermicro is about the only 
controller card option that I have found. If someone can suggest an 8 port 
esata card that works with Solaris, I may give that a try instead - but I was 
mainly looking for something along the lines of 'change line x in configuration 
file y'

Thanks again, 
Eric
 
 
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Re: [zfs-discuss] Force SATA1 on AOC-SAT2-MV8

2007-11-05 Thread Lida Horn
Eric Haycraft wrote:
 That explains the problems; however, I am able to get them to run by 
 jumpering them down to SATA1 which brings me back to my original question. Is 
 there a way to force sata 1 without cracking the drive case and voiding the 
 warranty? I only have so many expansion slots, so an 8 port supermicro is 
 about the only controller card option that I have found. If someone can 
 suggest an 8 port esata card that works with Solaris, I may give that a try 
 instead - but I was mainly looking for something along the lines of 'change 
 line x in configuration file y'
   
There is no way (short of patching the text of the driver) to alter the 
allowed SATA
communication speeds for the marvell88sx driver.  If you wish you can 
request an
RFE (Request For Enhancement), but I don't think it will be given high 
priority.

Sorry,
Lida Horn


 Thanks again, 
 Eric
  
  
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Re: [zfs-discuss] Force SATA1 on AOC-SAT2-MV8

2007-11-05 Thread Al Hopper
On Sun, 4 Nov 2007, Rob Windsor wrote:

 Eric Haycraft wrote:
 The drives (6 in total) are external (eSATA) ones, so they have their own 
 enclosure that I can't open without voiding the warranty... I destroyed one 
 enclosure trying out ways to get it to work and learned that there was no 
 way to open them up without wrecking the case :(

 I have 2 meter sata to esata cables.

 The drives are 750GB FreeAgent Pro USB/eSATA drives from Seagate.

 Thanks for your help.

 IIRC, eSATA has different signalling specifications from (i)SATA (higher
 voltages, for example).

 This would mean that a (passive) SATA-eSATA adapter on a SATA2 card
 could present its own issues.

OK - now I understand the issues.  The only suggestion I can offer is 
to try/see if a shielded SATA cable would work for you.  See: 
http://www.cs-electronics.com/serial-ata.htm   Also - talk to the CS 
Electronics guys - they may offer you alternative solutions.  I've 
found them to be knowledgable and reasonably priced - they have never 
foobarred an order on me.  [the usual disclaimers - just a satisfied 
customer over many years].

Regards,

Al Hopper  Logical Approach Inc, Plano, TX.  [EMAIL PROTECTED]
Voice: 972.379.2133 Fax: 972.379.2134  Timezone: US CDT
OpenSolaris Governing Board (OGB) Member - Apr 2005 to Mar 2007
http://www.opensolaris.org/os/community/ogb/ogb_2005-2007/
Graduate from sugar-coating school?  Sorry - I never attended! :)
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Re: [zfs-discuss] Force SATA1 on AOC-SAT2-MV8

2007-11-04 Thread Rob Windsor
Eric Haycraft wrote:
 The drives (6 in total) are external (eSATA) ones, so they have their own 
 enclosure that I can't open without voiding the warranty... I destroyed one 
 enclosure trying out ways to get it to work and learned that there was no way 
 to open them up without wrecking the case :(
 
 I have 2 meter sata to esata cables. 
 
 The drives are 750GB FreeAgent Pro USB/eSATA drives from Seagate. 
 
 Thanks for your help.

IIRC, eSATA has different signalling specifications from (i)SATA (higher 
voltages, for example).

This would mean that a (passive) SATA-eSATA adapter on a SATA2 card 
could present its own issues.

Rob++
-- 
Internet: [EMAIL PROTECTED] __o
Life: [EMAIL PROTECTED]_`\,_
(_)/ (_)
They couldn't hit an elephant at this distance.
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Re: [zfs-discuss] Force SATA1 on AOC-SAT2-MV8

2007-11-03 Thread Eric Haycraft
The drives (6 in total) are external (eSATA) ones, so they have their own 
enclosure that I can't open without voiding the warranty... I destroyed one 
enclosure trying out ways to get it to work and learned that there was no way 
to open them up without wrecking the case :(

I have 2 meter sata to esata cables. 

The drives are 750GB FreeAgent Pro USB/eSATA drives from Seagate. 

Thanks for your help.
 
 
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Re: [zfs-discuss] Force SATA1 on AOC-SAT2-MV8

2007-11-02 Thread Andy Lubel

Jumpering drives by removing the cover?  Do you mean opening the chassis
because they aren't removable from the outside?

Your cable is longer than 1 meter inside of a chasis??

I think sataI is 2 meters and sataII is 1 meter.

As far as a system setting for demoting these to sataI I don't know, but I
don't think its possible.. Don't hold me to that however, I only say that
because THE way I demote them to sataI is by removing a jumper actually :)

HTH,

Andy

On 11/2/07 12:29 PM, Eric Haycraft [EMAIL PROTECTED] wrote:

 I have a supermicro AOC-SAT2-MV8 and am having some issues getting drives to
 work. From what I can tell, my cables are to long to use with SATA2. I got
 some drives to work by jumpering them down to sata1, but other drives I can't
 jumper without opening the case and voiding the drive warranty. Does anyone
 know if there is a system setting to drop it back to SATA1? I use zfs on a
 raid2 if makes a difference. This is on release of OpenSolaris 74.
  
  
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Re: [zfs-discuss] Force SATA1 on AOC-SAT2-MV8

2007-11-02 Thread Al Hopper
On Fri, 2 Nov 2007, Eric Haycraft wrote:

 reformatted
 I have a supermicro AOC-SAT2-MV8 and am having some issues getting 
 drives to work. From what I can tell, my cables are to long to use 
 with SATA2. I got some drives to work by jumpering them down to 
 sata1, but other drives I can't jumper without opening the case and 
 voiding the drive warranty. Does anyone know if there is a system 
 setting to drop it back to SATA1? I use zfs on a raid2 if makes a 
 difference. This is on release of OpenSolaris 74.

What is the make/model# for the disk drives?

Regards,

Al Hopper  Logical Approach Inc, Plano, TX.  [EMAIL PROTECTED]
Voice: 972.379.2133 Fax: 972.379.2134  Timezone: US CDT
OpenSolaris Governing Board (OGB) Member - Apr 2005 to Mar 2007
http://www.opensolaris.org/os/community/ogb/ogb_2005-2007/
Graduate from sugar-coating school?  Sorry - I never attended! :)
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