Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2010-01-07 Thread Mark Bennett
Thanks Will, I thought it might be an i2c interface port to the psu, but obviously much simpler. I'll probably use a small picaxe micro, since I have a few here & have used them before. I used them to 'translate' the replacement fans clock pulse to what the monitoring circuit needed in a few V2

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2010-01-06 Thread Will Murnane
On Wed, Jan 6, 2010 at 20:41, Mark Bennett wrote: > Will, > > sorry for picking an old thread, That's okay---I liked this thread ;) > but you mentioned a psu monitor to supplement the CSE-PTJBOD-CB1. > I have two of these and am interested in your design. > Oddly, the LSI backplane chipset suppor

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2010-01-06 Thread Mark Bennett
Will, sorry for picking an old thread, but you mentioned a psu monitor to supplement the CSE-PTJBOD-CB1. I have two of these and am interested in your design. Oddly, the LSI backplane chipset supports 2 x i2c busses that Supermicro didn't make use of for monitoring the psu's. Mark. -- This mes

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-22 Thread James C. McPherson
On Fri, 17 Jul 2009 14:16:32 -0400 Miles Nordin wrote: > > "rl" == Rob Logan writes: > > rl> Is there some magic that load balances the 4 SAS ports as this > rl> shows up as one "scsi-bus"? > > The LSI card is not SATA framework. I've the impression drive > enumeration and topolog

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-21 Thread Marion Hakanson
asher...@versature.com said: > And, on that subject, is there truly a difference between Seagate's line-up > of 7200 RPM drives? They seem to now have a bunch: > . . . > Other manufacturers seem to have similar lineups. Is the difference going to > matter to me when putting a mess of them into a

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-21 Thread Richard Elling
On Jul 21, 2009, at 6:25 AM, F. Wessels wrote: So to wrap it up. According to Will, a supermicro chassis using a single lsi expander connected to sata disks can utilize the wide sas port between hba and the chassis. (like a J4500 Richard mentioned. How much I like these systems (thumper etc

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-21 Thread Adam Sherman
On 21-Jul-09, at 9:25 , F. Wessels wrote: So to wrap it up. According to Will, a supermicro chassis using a single lsi expander connected to sata disks can utilize the wide sas port between hba and the chassis. (like a J4500 Richard mentioned. How much I like these systems (thumper etc), the

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-21 Thread F. Wessels
So to wrap it up. According to Will, a supermicro chassis using a single lsi expander connected to sata disks can utilize the wide sas port between hba and the chassis. (like a J4500 Richard mentioned. How much I like these systems (thumper etc), they're way out of my budget.) Will did see more

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-20 Thread Richard Elling
F. Wessels wrote: Also in reply to the previous email by Will. Can anyone shed more light on the combination lsi sas hba , the lsisasx36 expander chip (or it's relatives) and sata disks. I'm investigating a migration from discrete channels (like in the thumper) to a multiplexed solution via a

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-20 Thread Will Murnane
On Mon, Jul 20, 2009 at 05:44, F. Wessels wrote: > Also in reply to the previous email by Will. > > Can anyone shed more light on the combination lsi sas hba , the lsisasx36 > expander chip (or it's relatives) and sata disks. > I'm investigating a migration from discrete channels (like in the thum

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-20 Thread F. Wessels
Also in reply to the previous email by Will. Can anyone shed more light on the combination lsi sas hba , the lsisasx36 expander chip (or it's relatives) and sata disks. I'm investigating a migration from discrete channels (like in the thumper) to a multiplexed solution via a sas expander. I'm aw

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-17 Thread Miles Nordin
> "rl" == Rob Logan writes: rl> Is there some magic that load balances the 4 SAS ports as this rl> shows up as one "scsi-bus"? The LSI card is not SATA framework. I've the impression drive enumeration and topology is handled by the proprietary firmware on the card, so it's likely th

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-17 Thread Will Murnane
On Fri, Jul 17, 2009 at 11:43, Adam Sherman wrote: > On 17-Jul-09, at 1:45 , Will Murnane wrote: >>> >>> I'm looking at the LSI SAS3801X because it seems to be what Sun OEMs for >>> my >>> X4100s: >> >> If you're given the choice (i.e., you have the M2 revision), PCI >> Express is probably the bus

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-17 Thread Adam Sherman
On 17-Jul-09, at 1:45 , Will Murnane wrote: I'm looking at the LSI SAS3801X because it seems to be what Sun OEMs for my X4100s: If you're given the choice (i.e., you have the M2 revision), PCI Express is probably the bus to go with. It's basically the same card, but on a faster bus. But ther

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-16 Thread Will Murnane
On Thu, Jul 16, 2009 at 21:30, Rob Logan wrote: >> c4                             scsi-bus     connected    configured >> unknown >> c4::dsk/c4t15d0                disk         connected    configured >> unknown >  : >> c4::dsk/c4t33d0                disk         connected    configured >> unknown

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-16 Thread Will Murnane
On Thu, Jul 16, 2009 at 21:35, Adam Sherman wrote: > I'm looking at the LSI SAS3801X because it seems to be what Sun OEMs for my > X4100s: If you're given the choice (i.e., you have the M2 revision), PCI Express is probably the bus to go with. It's basically the same card, but on a faster bus. Bu

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-16 Thread Adam Sherman
On 16-Jul-09, at 21:17 , Will Murnane wrote: Good to hear. What HBA(s) are you using against it? LSI 3442E-R. It's connected through a Supermicro cable, CBL-0168L, so it can be attached via an external cable. I'm looking at the LSI SAS3801X because it seems to be what Sun OEMs for my X4100

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-16 Thread Rob Logan
> c4 scsi-bus connectedconfigured unknown > c4::dsk/c4t15d0disk connectedconfigured unknown : > c4::dsk/c4t33d0disk connectedconfigured unknown > c4::es/ses0ESI connected

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-16 Thread Will Murnane
On Thu, Jul 16, 2009 at 21:16, Rob Logan wrote: > I'm confused, I though expanders only worked with SAS disk, and SATA disks > took an entire SAS port. could someone post an output showing more than 4 > SATA > drives across one InfiniBand cable (4 SAS ports) > > 2 % cfgadm | grep sata > sata1/0::ds

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-16 Thread Will Murnane
On Thu, Jul 16, 2009 at 20:20, Adam Sherman wrote: > Ever seen/read about anyone use this kind of setup for HA clustering? I'm > getting ideas about Open HA/Solaris Cluster on top of this setup with two > systems connecting, that would rock! It's possible that this would work with homogeneous hardw

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-16 Thread Rob Logan
>> We have a SC846E1 at work; it's the 24-disk, 4u version of the 826e1. >> It's working quite nicely as a SATA JBOD enclosure. > use the LSI SAS 3442e which also gives you an external SAS port. I'm confused, I though expanders only worked with SAS disk, and SATA disks took an entire SAS port. c

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-16 Thread Bob Friesenhahn
On Thu, 16 Jul 2009, Adam Sherman wrote: I should also ask: any other solutions I should have a look at to get >=12 SATA disks externally attached to my systems? Depending on how much failure resiliancy you want and how you plan to configure your pool, you may be better off with two independ

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-16 Thread Adam Sherman
On 16-Jul-09, at 18:01 , Will Murnane wrote: We have a SC846E1 at work; it's the 24-disk, 4u version of the 826e1. It's working quite nicely as a SATA JBOD enclosure. We'll probably be buying another in the coming year to have more capacity. I should also ask: any other solutions I should hav

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-16 Thread Adam Sherman
On 16-Jul-09, at 20:52 , James C. McPherson wrote: Another thought in the same vein, I notice many of these systems support "SES-2" for management. Does this do anything useful under Solaris? We've got some integration between FMA and SES devices which allows us to to some management tasks. S

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-16 Thread James C. McPherson
On Thu, 16 Jul 2009 20:26:17 -0400 Adam Sherman wrote: > Another thought in the same vein, I notice many of these systems > support "SES-2" for management. Does this do anything useful under > Solaris? We've got some integration between FMA and SES devices which allows us to to some manageme

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-16 Thread Jonathan Borden
> > > We have a SC846E1 at work; it's the 24-disk, 4u > version of the 826e1. > > It's working quite nicely as a SATA JBOD enclosure. > We'll probably be > buying another in the coming year to have more > capacity. > Good to hear. What HBA(s) are you using against it? > I've got one too and it

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-16 Thread Adam Sherman
Another thought in the same vein, I notice many of these systems support "SES-2" for management. Does this do anything useful under Solaris? Sorry for these questions, I seem to be having a tough time locating relevant information on the web. Thanks, A. -- Adam Sherman CTO, Versature Co

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-16 Thread Adam Sherman
On 16-Jul-09, at 18:01 , Will Murnane wrote: The "direct attached" backplane is right out. This means that each drive has its own individual sata port, meaning you'd need three SAS wide ports just to connect the drives. The single-expander version has one LSI SAS expander, which connects to all

Re: [zfs-discuss] Understanding SAS/SATA Backplanes and Connectivity

2009-07-16 Thread Will Murnane
On Thu, Jul 16, 2009 at 17:02, Adam Sherman wrote: > Hello All, > > I'm just starting to think about building some mass-storage arrays and am > looking to better understand some of the components involved. > > For example, the Supermicro SC826 series of systems is available with three > backplanes: