On Wed, 02 May 2012 16:19:40 +0000, Ramon Hofer wrote: > On Wed, 02 May 2012 14:21:36 +0000, Camaleón wrote:
>> Ah, okay. This one: >> >> http://www.supermicro.com/products/motherboard/Core/P67/C7P67.cfm >> >> The board has no SAS ports but it features 8 SATA ports (4 SATA2 and 4 >> SATA3), aren't those enough your your purpose? :-? > > Yes, that's the mainboard I got. > > The case has two places to add os drives, one for a cdrom and 20 hot > swapable disks. > It was available with either SAS or SATA connectors. But I would have > needed 23 SATA connectors on the mainboard or addon cards. The case with > 5 SAS connectors was available and the SATA one had much later delivery > date so I went for the SAS case. But you are still physically limited to the eight-ports provided by the add-on card, right? :-? >> Well, I wonder why is that you chose to go with SAS drives instead >> using SATA given that the motehrboard only has SATA ports. When someone >> adds a SAS controller is usually because he/she wnats to build a >> mainstream server or expectes more performance/reliability than the >> average :-) > > Since I couldn't find any mainboards with more than 20 SATA ports and > enough slots for addon cards (1x PCI, 2x PCI-Ex1 only for the tv cards). Okay, I didn't realize you were planning to use all of the available hard disk trays of the case :-) But then, you will need SAS controller with expansion capabilities, don't you? I maybe overlooked but the SuperMicro SAS controller you first pointed out does not seem to support more than 8 devices. >>> Now I have one 500 GB disk as system drive but I'm thinking of adding >>> another one as RAID1. >> >> This leads me to another question. Why RAID 1 for a media server? > > Just because the case has two places for os disks. But on the other hand > it's seems to be interesting to set up a bootable raid1. And because > it's calming to have the safety of the raid as it serves all the media I > have: MythTV, LogitechMediaServer, etc. So my family relies on it and > isn't amused when the system is down ;-) Okay :-) Just let me add a note of warning here: whatever SAS/SATA card you finally choose, ensure that has support for big hard disks (>2-3TiB) just in case, because this information is not usually displayed on the specs. >> Okay, let's see what we have for now: >> >> - A motherboard with 8 SATA ports >> - A 4U case with up to 20 hot-swap drive bays for the disks (SATA/SAS) >> >> I wonder why is that you have not considered using SATA hard disks :-) > > Besides the fact of the longer delivery because I couldn't find cheaper > solution than the two Supermicro SAS cards. The rest of the disks and > optical drive. Ah, so your plan was adding two of this eight-port SAS addon card to get a total of 16 hard disks. >>> But in the meantime I have installed the bpo kernel and it seems to be >>> working now... >>> At least it never run the disk check for so long, the raid is >>> rebuilding and I can see the details as much as I want... >> >> Glag it's more stable now with an updated kernel but I'd be keep >> monitoring the array during some days... and if you experience another >> issue with the disks, I would reconsider in replacing the hard disk >> controller or moving to SATA disks, instead. > > Thanks. > I think I'll go with the solution Stan posted (LSI 9240-4i and Intel SAS > expander). Mmm, yes. I can't tell for that specific model but LSI is a good manufacturer for HBA solutions and also linux-friendly, at least that's what I've heard :-) >>> You're about an hour too late :-o >>> But I already had the newest firmware on the card. >> >> Oh. Hope all went well O:-) > > Yes, I hope to be able to sell them to Windows users :-) He, he.. good move :-) >>> But I'm confused about the two different versions too. lspci shows: >> >> (I'm copying the rest of the message here) >> >>> 01:00.0 RAID bus controller: Marvell Technology Group Ltd. >>> MV64460/64461/64462 System Controller, Revision B (rev 01) >> >> Well, lspci should display two different sets for the hard disk >> controller: the SAS adapter (Marvell 88SE6480) and the motherboard >> embedded chipset (Marvell 88SE9128) but none of these two matches with >> the lscpi output :-? > > You're right: > http://pastebin.com/raw.php?i=JQtrS5J2 > > Why don't they match :-? Mmm, yes, there's something strange there. Ah, I think I got it :-) > $ sudo lspci | grep Marvel > 01:00.0 RAID bus controller: Marvell Technology Group Ltd. > MV64460/64461/64462 System Controller, Revision B (rev 01) This can be the motherboard SATA 2 controller. > 02:00.0 RAID bus controller: Marvell Technology Group Ltd. > MV64460/64461/64462 System Controller, Revision B (rev 01) This can be the SAS add-on card. > 03:00.0 SATA controller: Marvell Technology Group Ltd. 88SE9123 PCIe SATA 6.0 > Gb/s controller (rev 11) This is the motherboard SATA 3 controller. > 03:00.1 IDE interface: Marvell Technology Group Ltd. Device 91a4 (rev 11) And finally, this is the IDE/ATA port of the motherboard. Does this make more sense? Yes, exact numbers do not match but this can be due to a simple identification problem ("update-pciids" could solve this). Greetings, -- Camaleón -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? 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