From owner-freebsd-questions@FreeBSD.ORG Mon Jun 4 03:40:35 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 15FBC1065670 for ; Mon, 4 Jun 2012 03:40:35 +0000 (UTC) (envelope-from v.velox@vvelox.net) Received: from vulpes.vvelox.net (vulpes.vvelox.net [99.69.115.42]) by mx1.freebsd.org (Postfix) with ESMTP id 947128FC0C for ; Mon, 4 Jun 2012 03:40:34 +0000 (UTC) Received: from vixen42.vulpes.vvelox.net (vixen42.vulpes.vvelox.net [192.168.15.2]) (Authenticated sender: kitsune) by vulpes.vvelox.net (Postfix) with ESMTPA id 421193F645 for ; Sun, 3 Jun 2012 22:41:51 -0500 (CDT) Date: Sun, 3 Jun 2012 22:42:23 -0500 From: "Zane C. B-H." Cc: freebsd-questions@freebsd.org Message-ID: <20120603224223.123bc4fa@vixen42.vulpes.vvelox.net> In-Reply-To: <4FCC0A31.3000902@gmail.com> References: <4FCC0A31.3000902@gmail.com> X-Mailer: Claws Mail 3.8.0 (GTK+ 2.24.6; amd64-portbld-freebsd8.2) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: Strange case of vanishing disk X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Jun 2012 03:40:35 -0000 On Mon, 04 Jun 2012 02:06:57 +0100 Kaya Saman wrote: > Hi, > > this is a very strange issue but I guess will either be related to > 2 things, PSU not being powerful enough or disk controller simply > being crap. > > > Here's what's going on. I have a little Chenbro 4 disk mini-ITX NAS > server with 2x 2TB disks and 2x4TB disks as storage - all spread > out over 2 ZFS storage pools. Additionally I am running the root > file system on a 40GB SSD. > > The strange thing with this is that I recently installed the 4TB > disks and they're brand new. > > > One disk connected to the system board works fine and shows up as > online and on one of the channels using atacontrol list. > > > The other disk is connected to a Startech.com Jmicron based 2x SATA > RAID controller card. > > > The disk connected to the controller card is having issues. At > first the drive wouldn't be seen by the system then after a while > all of a sudden it was there. No reboots, no io scans nothing it > just appeared. > > After blasting it with IO for a few days the disk has now vanished > again..... > > I had this error in dmesg for a while: > > ad4: TIMEOUT - READ_DMA retrying (1 retry left) LBA=113337535 > > I have tried to use pciconf -lbvv to show the connected interfaces > and the JMICRON comes up fine: > > > atapci0@pci0:2:0:0: class=0x010400 card=0x2366197b > chip=0x2366197b rev=0x02 hdr=0x00 > vendor = 'JMicron Technology Corp.' > device = 'JMicron JMB366 AHCI/IDE Controller (JMB36X)' > class = mass storage > subclass = RAID > bar [10] = type I/O Port, range 32, base 0xd040, size 8, > enabled bar [14] = type I/O Port, range 32, base 0xd030, size 4, > enabled bar [18] = type I/O Port, range 32, base 0xd020, size 8, > enabled bar [1c] = type I/O Port, range 32, base 0xd010, size 4, > enabled bar [20] = type I/O Port, range 32, base 0xd000, size 16, > enabled bar [24] = type Memory, range 32, base 0xd0510000, size > 8192, enabled > > > So why isn't the disk? > > I reckon as stated at the beginning that either the 180Watt PSU > inside the system isn't enough or the controller is just really > poor?? > > > Could anyone suggest anything to look into, I'm sure I've covered > all the bases but just incase there is something else I can do with > this one?? Greetings, It looks like you are using the default ATA drive with that. I would suggest trying the AHCI driver and see if that works better. kldload ahci