search for: backplane

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

During the diagnostics of my SAN failure last week we thought we had seen a backplane failure due to high error counts with ''lsiutil''. However, even with a new backplane and ruling out failed cards (MPXIO or singular) or bad cables I''m still seeing my error count with LSIUTIL increment. I''ve got no disks attached to the array right now so I'...

I posted a thread on this once long ago[1] -- but we''re still fighting with this problem and I wanted to throw it out here again. All of our hardware is from Silicon Mechanics (SuperMicro chassis and motherboards). Up until now, all of the hardware has had a single 24-disk expander / backplane -- but we recently got one of the new SC847-based models with 24 disks up front and 12 in the back -- a dual backplane setup. We''re using two SSD''s in the front backplane as mirrored ZIL/OS (I don''t think we have the 4K alignment set up correctly) and two drives in the b...

...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 Seagate 250GB and 160GB SATA drives at $70 and $54 USD each, respectively. The backplane runs about $130. The config options I considered are: RZ1 +spare RZ2 -spare mirror(s) (+spare w/ 5 160GB disks) Using Richard...

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 using linux mdraid. Does this...

...t; you have. >> Does these bays have a connector (+ cable) that is connected to the >> motherboard or RAID card to control the HDD LEDs in the bay? >> (sorry if this appears basic but I have no experience with such hardware) >> > > typically, a server will have a SAS backplane which sas/sata drives hot > plug into, and 1 or more 4 channel SAS ports that plug into the host bus > adapter or raid controller. this SAS backplane usually has a 'SES' > controller[*] embedded on it, which appears to the host as another SAS > device, and manages the LEDs....

...est way to go. I can have a motherboard with a lot of PCIe slots and have one controller card for each expander. Cases like the Supermicro 846E1-R900B have 24 hot swap bays accessible via a single (4u) LSI SASX36 SAS expander chip, but I''m worried about controller death and having the backplane as a single point of failure. I guess, ideally, I''d like a 4u enclosure with 2x2u SAS expanders. If I wanted hardware redundancy, I could then use mirrored vdevs with one side of each mirror on one controller/expander pair and the other side on a separate pair. This would allow me to...

...12:02 PM, Mike Mohr wrote: > In my experience the mass market HBAs and RAID cards typically do support > only 8 or 16 drives. For the internal variety in a standard rack-mount > server you'll usually see either 2 or 4 iPass cables (each of which support > 4 drives) connected to the backplane. The marketing material you've > referenced has a white lie in it: supporting more 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 d...

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...

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

...r 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 not there previously that came with the newer driver, including: 10a7 82575EB Gigabit Network Connection 10a9 82575EB Gigabit Backplane Connection 10c9 82576 Gigabit Network Connection 10d6 82575GB Gigabit Network Connection 10e6 82576 Gigabit Network Connection 10e7 82576 Gigabit Network Connection 10e8 82576 Gigabit Network Connection 150a 82576NS Gigabit Network Connection T...

...nthly freebsd.org mailing list memberships reminder tells me I am. List Password // URL ---- -------- freebsd-security@freebsd.org ...... http://lists.freebsd.org/mailman/options/freebsd-security/dillon%40backplane.com Secondly, the policy outlined below is ludicrous. The lists are here to facilitate communications between people on various topics. As long as the communication is legitimate it is in the best interests of everyone to NOT reject postings from non-subscribed members. If the m...

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

...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 internal wiring. Has anyone figured out a solution for this? Something along the lines of an external power brick whose output attaches to a backplane slot and gives you a 12V connector inside the server? Or am I just SOL? Thanks -- j. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20070305/789e1079/attachment.htm

...or the list, I "accidentally" bought a wad of caviar black 2TBs. No, they are new enough to not respond to WDTLER.EXE, and yes, they are generally unhappy with my boxen. I have them "working" now, running direct-attach off 3 3081E-Rs with breakout cables in the SC836TQ (passthru backplane) chassis, set up as one pool of 2 6+2 raidz2 vdevs (16 drives total), but they still toss the occasional error and performance is, well, abysmal - zpool scrub runs at about a third the speed of the 1TB cudas that they share the machine with, in terms of iostat reported ops/sec or bytes/sec. They do...

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 also marked ide, that looks suspiciously like a power supply takeoff. I've talked to the good folks at dell about this, and they are as clueless as ever. Has any...

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 b...

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