search for: backplanes

Oracle have deleted the best ZFS platform I know, the X4540. Does anyone know of an equivalent system? None of the current Oracle/Sun offerings come close. -- Ian.

I am wondering if it's possible to use a bunch of cards in a PCI backplane instead of going out to the extensions with T1 and then and adapter. How are people connecting to large amounts of extensions?

Dear all Sorry if it''s kind of off-topic for the list but after talking to lots of vendors I''m running out of ideas... We are looking for JBOD systems which (1) hold 20+ 3.3" SATA drives (2) are rack mountable (3) have all the nive hot-swap stuff (4) allow 2 hosts to connect via SAS (4+ lines per host) and see all available drives as disks, no RAID volume. In a

.../card/etc. You can see phy 8-15 throw errors irregardless of MPXIO or single card config, OR which expander port I use on the backplane. According to my VAR something in the mptsas code changed "recently" (not sure what that means in time terms) and they do not see the problems with 6GB backplanes and adapters. -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: SAS Diags.txt URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20111201/0c9932e4/attachment-0001.txt> -------------- next part -------------- Attached is...

...ollers as ZIL, there are also no performance issues or timeout errors. So the problem only occurs with SSD drives acting as ZIL attached to the backplane. This is leading me to believe we have a driver issue of some sort in the mpt subsystem unable to cope with the longer command path of multiple backplanes. Someone alluded to this in [1] as well, and it makes sense to me. One quick fix to me would seem to be upping the SCSI timeout values. How do you do this with the mpt driver? We haven''t yet been able to try OpenSolaris or Nexenta on one of these systems to see if the problem goes away...

I was recently evaluating much the same question but with out only a single pool and sizing my disks equally. I only need about 500GB of usable space and so I was considering the value of 4x 250GB SATA Drives versus 5x 160GB SATA drives. I had intended to use an AMS 5 disk in 3 5.25" bay hot-swap backplane. http://www.american-media.com/product/backplane/sata300/sata300.html I priced

So I'm curious how SAS JBOD arrays and linux MDraid as implemented in CentOS6, and SES (SCSI/SAS Enclosure Services) backplane controllers 'get along' and how much configuration is needed to get the warning lights to work properly. scenario: whitebox server with a SAS backplane or two, daisy chained on a SAS HBA (like an LSI Logic 2008), and disks organized as several raid5/6

...> john r pierce N 37, W 122 > santa cruz ca mid-left coast I'm guessing you want to be able to ID a failed drive visually and mdadm can make that a challenge. A SATA backplane likely will have a signal bus connector (Suoermicro server backplanes do) but onboard controllers probably won't supply the other end Built servers definitely will as john points out. Better hardware RAID HBAs probably shoild have the complimentary signal bus connector. Make sure your system builder or supplier gets you the right cable bits - i'm pretty s...

Hi, I know (from the zfs-discuss archives and other places [1,2,3,4]) that a lot of people are looking to use zfs as a storage server in the 10-100TB range. I''m in the same boat, but I''ve found that hardware choice is the biggest issue. I''m struggling to find something which will work nicely under solaris and which meets my expectations in terms of hardware.

...re than 16 drives on a > single card is very likely only possible with an additional SAS expander > board. I believe Supermicro does sell some pre-configured systems with ok, then i should give a little detail : the purpose was to have an 1U server as a head of a JBOD chassis that have 2 SAS backplanes. The connection would be a simple SAS cascade to the backplanes. > such hardware, but expect the throughput to fall through the floor if you > use such hardware. why? what is the difference between the silicon from a HBA card and the same silicon on motherboard? The reason of my post is als...

Does anyone know which physical interrupt line out of the four on the PCI backplane the TE405P uses? Or is it somehow configurable by hardware or software? I'm trying to diagnose a problem where the card generates no interrupts in one system, but is fine in another system. These systems are SBC-in-backplane type. My knowledge of how PCI works at the physical layer is rather limited, but I

I got 2 cards working, and will need to add another 2 cards shortly. I hadn't thought about the matter-it's something I can try to play with later. What you've done here is awesome, where did you come across a system that could house 11 pci cards? ______________________________________________ Andrew Wehner Chatham Financial - Kennett Square T: 484.731.0029 -----Original

Hello - It's been sooooo long since I've tried hacking the kickstart media to include an updated driver but I guess that time has come again for me at least, getting an updated "igb" driver into the CentOS 5.2 installation for a HP DL165G5p(I'm not ready yet for CentOS 5.3). Anyways, I had a pretty basic question, I added a bunch of entries into the pci.ids file that were

Umm. First of all, I *AM* a member of this list, unless someone else unsubcribed me. If so, please put me back on. I've gone through my archives and I am very clearly subscribed to the list. The monthly freebsd.org mailing list memberships reminder tells me I am. List Password // URL ---- --------

Afternoon, I've got an old Dell PERC 4DC (PCI 64bit/33MHz) sitting in my home rig and with a new board on the way that has PCI-X (133) and PCIe (x4) slots, I was wondering what people would recommend for a cheap hardware parallel SCSI RAID controller (no fake raid please) that is relatively cheap but faster then the old PERC? I'm looking for something cheap that'll do RAID-10 but

The HP DL380 G5 (like many rack servers) has no AMP Mate-n-Lok connector available to attach to a card that needs more power than the PCI bus can provide, like the TDM400P when FXS modules are used. HP has confirmed that there is no part they sell to give you such a connector, and Digium says their business edition folks got it to work, but only by doing nasty warranty-voiding things to the

I know that this has been well-discussed already, but it''s been a few months - WD caviars with mpt/mpt_sas generating lots of retryable read errors, spitting out lots of beloved " Log info 31080000 received for target" messages, and just generally not working right. (SM 836EL1 and 836TQ chassis - though I have several variations on theme depending on date of purchase: 836EL2s,

Hi all: I've been developing and testing on a tdm400p card and it's been going well. As you probably know, the tdm400p needs an ide power supply, but the dell poweredge 2600 that this card is destined for eventually has all the power supplied on the backplane with no ide cables. The thing is, on the motherboard in the server, there is an ide ribbon connector, and beside that, something

Dear All, It may be this not the correct mailing list, but I''m having a ZFS issue when a disk is failing. The system is a supermicro motherboard X8DTH-6F in a 4U chassis (SC847E1-R1400LPB) and an external SAS2 JBOD (SC847E16-RJBOD1). It makes a system with a total of 4 backplanes (2x SAS + 2x SAS2) each of them connected to a 4 different HBA (2x LSI 3081E-R (1068 chip) + 2x LSI SAS9200-8e (2008 chip)). This system is has a total of 81 disk (2x SAS (SEAGATE ST3146356SS) + 34 SATA3 (Hitachi HDS722020ALA330) + 45 SATA6 (Hitachi HDS723020BLA642)) The system is controlled by...

Hi list, I''ve got a system with 3 WD and 3 seagate drives. Today I got an email that zpool status indicated one of the seagate drives as REMOVED. I''ve tried clearing the error but the pool becomes faulted again. Taken out the offending drive and plugged into a windows box with seatools install. Unfortunately seatools finds nothing wrong with the drive. Windows seems to see