Re: [zfs-discuss] Force SATA1 on AOC-SAT2-MV8
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! :) ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Force SATA1 on AOC-SAT2-MV8
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 > > > This message posted from opensolaris.org > ___ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Force SATA1 on AOC-SAT2-MV8
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 This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Force SATA1 on AOC-SAT2-MV8
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." -- Major General John Sedgwick ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Force SATA1 on AOC-SAT2-MV8
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. This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Force SATA1 on AOC-SAT2-MV8
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! :) ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Force SATA1 on AOC-SAT2-MV8
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. > > > This message posted from opensolaris.org > ___ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Force SATA1 on AOC-SAT2-MV8
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. This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
