Re: ad8: TIMEOUT - WRITE_DMA errors UFS 7.0-RC1

2008-03-08 Thread Jeremy Chadwick
On Sun, Mar 09, 2008 at 12:50:49AM +0100, Eilko Bos wrote:
> >From the keyboard of Michael Haro, written on Sun, Jan 27, 2008 at 
> >12:01:03AM -0800:
> > > Can anyone else using 7.0 who hasn't already (especially those using ZFS)
> > > check his/her /var/log/messages for disk TIMEOUTs or other disk error
> > > messages?  If this is widespread, I think the chances re slim that it is a
> > > hardware problem in every case.
> > 
> > I've had this problem with Hitachi sata drives using a promise sata 
> > controller.
> 
> I am using 2 160Gb Maxtor disks in geom_mirror. With 6.3 it runs fine. I 
> upgraded to 7.0-RELEASE and after install problems started. Disk TIMEOUTs
> freezed the box as soon as I initiated a lot of disk activity (e.g. make
> buildworld of building a kernel).
> 
> I 'downgraded' the box to 6.3 again (had to rebuild the mirror because it was
> touched by a newer gmirror) and now the problems have gone again. I have the
> strong impression it is not hardware bot rather 7.0-RELEASE related.
> Actually I want to get rid of the box at home (want to carry it to a 
> datacenter)
> but if it can be helpfull I am willing to have it for another week or two at
> home to upgrade/downgrade/etc. with it.


You should consider posting the SMART stats for both /dev/ad0 and
/dev/ad1 (because you didn't disclose which disk is showing problems; I
assume ad0 though).  You can get these by installing
ports/sysutils/smartmontools and using "smartctl -a ad0" (same for ad1).

This can help narrow down the problem.  Confirming it's *not* a disk
issue is helpful.

More importantly: if the problem is easily reproducable for you under
RELENG_7, you should contact Scott Long, who has offered to help track
this problem down.

-- 
| Jeremy Chadwickjdc at parodius.com |
| Parodius Networking   http://www.parodius.com/ |
| UNIX Systems Administrator  Mountain View, CA, USA |
| Making life hard for others since 1977.  PGP: 4BD6C0CB |

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Re: ad8: TIMEOUT - WRITE_DMA errors UFS 7.0-RC1

2008-03-08 Thread Eilko Bos
>From the keyboard of Michael Haro, written on Sun, Jan 27, 2008 at 12:01:03AM 
>-0800:
> > Can anyone else using 7.0 who hasn't already (especially those using ZFS)
> > check his/her /var/log/messages for disk TIMEOUTs or other disk error
> > messages?  If this is widespread, I think the chances re slim that it is a
> > hardware problem in every case.
> 
> I've had this problem with Hitachi sata drives using a promise sata 
> controller.

I am using 2 160Gb Maxtor disks in geom_mirror. With 6.3 it runs fine. I 
upgraded to 7.0-RELEASE and after install problems started. Disk TIMEOUTs
freezed the box as soon as I initiated a lot of disk activity (e.g. make
buildworld of building a kernel).

I 'downgraded' the box to 6.3 again (had to rebuild the mirror because it was
touched by a newer gmirror) and now the problems have gone again. I have the
strong impression it is not hardware bot rather 7.0-RELEASE related.
Actually I want to get rid of the box at home (want to carry it to a datacenter)
but if it can be helpfull I am willing to have it for another week or two at
home to upgrade/downgrade/etc. with it.

My dmesg (6.3 again):
--
Copyright (c) 1992-2008 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 6.3-RELEASE #0: Wed Jan 16 04:45:45 UTC 2008
[EMAIL PROTECTED]:/usr/obj/usr/src/sys/SMP
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel Pentium III (1000.04-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x68a  Stepping = 10
  
Features=0x383fbff
real memory  = 1610592256 (1535 MB)
avail memory = 1564733440 (1492 MB)
ACPI APIC Table: 
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
 cpu0 (BSP): APIC ID:  3
 cpu1 (AP): APIC ID:  0
ioapic0  irqs 0-15 on motherboard
ioapic1  irqs 16-31 on motherboard
kbd1 at kbdmux0
ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413)
hptrr: HPT RocketRAID controller driver v1.1 (Jan 16 2008 04:43:12)
acpi0:  on motherboard
acpi0: Power Button (fixed)
Timecounter "ACPI-safe" frequency 3579545 Hz quality 850
acpi_timer0: <32-bit timer at 3.579545MHz> port 0xe408-0xe40b on acpi0
cpu0:  on acpi0
cpu1:  on acpi0
acpi_button0:  on acpi0
pcib0:  port 0xcf8-0xcff on acpi0
pci0:  on pcib0
fxp0:  port 0xd800-0xd83f mem 
0xfe00-0xfe000fff,0xfd80-0xfd8f at device 2.0 on pci0
miibus0:  on fxp0
inphy0:  on miibus0
inphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
fxp0: Ethernet address: 00:e0:18:47:01:35
em0:  port 0xd400-0xd43f 
mem 0xfd00-0xfd01,0xfc80-0xfc81 irq 17 at device 4.0 on pci0
em0: Ethernet address: 00:07:e9:3e:e7:90
pci0:  at device 7.0 (no driver attached)
isab0:  port 0xe800-0xe80f at device 15.0 on pci0
isa0:  on isab0
atapci0:  port 
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xb800-0xb80f at device 15.1 on pci0
ata0:  on atapci0
ata1:  on atapci0
ohci0:  mem 0xfa00-0xfa000fff irq 9 at 
device 15.2 on pci0
ohci0: [GIANT-LOCKED]
usb0: OHCI version 1.0, legacy support
usb0:  on ohci0
usb0: USB revision 1.0
uhub0: (0x1166) OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 4 ports with 4 removable, self powered
pcib1:  on acpi0
pci1:  on pcib1
sym0: <1010-33> port 0xb400-0xb4ff mem 
0xf980-0xf98003ff,0xf900-0xf9001fff irq 24 at device 5.0 on pci1
sym0: Symbios NVRAM, ID 7, Fast-80, LVD, parity checking
sym0: open drain IRQ line driver, using on-chip SRAM
sym0: using LOAD/STORE-based firmware.
sym0: handling phase mismatch from SCRIPTS.
sym0: [GIANT-LOCKED]
sym1: <1010-33> port 0xb000-0xb0ff mem 
0xf880-0xf88003ff,0xf800-0xf8001fff irq 25 at device 5.1 on pci1
sym1: Symbios NVRAM, ID 7, Fast-80, LVD, parity checking
sym1: open drain IRQ line driver, using on-chip SRAM
sym1: using LOAD/STORE-based firmware.
sym1: handling phase mismatch from SCRIPTS.
sym1: [GIANT-LOCKED]
atkbdc0:  port 0x60,0x64 irq 1 on acpi0
atkbd0:  irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0:  irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model IntelliMouse, device ID 3
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sio0: type 16550A
sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
ppc0:  port 0x378-0x37f,0x778-0x77a irq 7 drq 3 on 
acpi0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/8 bytes threshold
ppbus0:  on ppc0
plip0:  on ppbus0
lpt0:  on ppbus0
lpt0: Interrupt-driven port
ppi0:  on ppbus0
fdc0:  port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on acpi0
fdc0: [FAST]
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
pmtimer0 on isa0
orm0:  at iomem 
0xc-0xc7fff,0xc8000-0xc97ff,0xcc000-0xcc7ff on isa0
sc0:  at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0:  at port 0x3c0-0x3df iomem 0xa-0xb on isa0
Timecounters tick every 1.000 msec
hptrr: no controller detecte

Re: ad8: TIMEOUT - WRITE_DMA errors UFS 7.0-RC1

2008-01-27 Thread Remco van Bekkum
Well the problem is that things *sometimes* work... sometimes not
But my backup is on a system running FreeBSD 6.3 with a promise
sata controller and that one has crashed too while backing up. So I'm
kind of cautious with testing. First I need some reliable storage to try
to recover my data.

Remco

On Sun, Jan 27, 2008 at 10:27:38AM -0700, Joe Peterson wrote:
> Remco van Bekkum wrote:
> > Well it looks like in my case it is hardware related after all. It failed 
> > to read the boot
> > block several times now. 2nd sort of DOA of this disk...
> 
> Have you tried reading the block in another OS or using SeaTools?  That would
> at least verify that it's hardware.
> 
>   -Joe
> 
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Re: ad8: TIMEOUT - WRITE_DMA errors UFS 7.0-RC1

2008-01-27 Thread Joe Peterson
Remco van Bekkum wrote:
> Well it looks like in my case it is hardware related after all. It failed to 
> read the boot
> block several times now. 2nd sort of DOA of this disk...

Have you tried reading the block in another OS or using SeaTools?  That would
at least verify that it's hardware.

-Joe

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Re: ad8: TIMEOUT - WRITE_DMA errors UFS 7.0-RC1

2008-01-27 Thread Remco van Bekkum
Well it looks like in my case it is hardware related after all. It failed to 
read the boot
block several times now. 2nd sort of DOA of this disk...

Remco

On Sat, Jan 26, 2008 at 04:28:29PM -0700, Joe Peterson wrote:
> Remco van Bekkum wrote:
> > Same here. On an amd64 system with 1x sata disk (Western Digital Caviar
> > Green Power) on an amd690G chipset, with UFS and intensive disk activity
> > the system hangs and in the end it may panic. I've csupped today and
> > rebuild world & generic kernel but still it's very unstable, sometimes it
> > even hangs when activating geom volumes at boot time... 
> > I must add that this is a new system so I'm not 100% sure the hardware is 
> > sane.
> > Using ZFS it also crashed when doing intensive I/O.
> 
> This is very interesting.  It seems to there are several of us who are
> experiencing something that *looks* like hardware (disk) issues when using 
> 7.0.
> 
> Could this be related to the mouse freeze issue?  Could some process be
> locking/grabbing the CPU at inopportune times and causing not only the
> freezing symptoms but also reads/writes problems?
> 
> Can anyone else using 7.0 who hasn't already (especially those using ZFS)
> check his/her /var/log/messages for disk TIMEOUTs or other disk error
> messages?  If this is widespread, I think the chances re slim that it is a
> hardware problem in every case.
> 
>   -Joe
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Re: ad8: TIMEOUT - WRITE_DMA errors UFS 7.0-RC1

2008-01-27 Thread Michael Haro
On Jan 26, 2008 3:28 PM, Joe Peterson <[EMAIL PROTECTED]> wrote:
> Remco van Bekkum wrote:
> > Same here. On an amd64 system with 1x sata disk (Western Digital Caviar
> > Green Power) on an amd690G chipset, with UFS and intensive disk activity
> > the system hangs and in the end it may panic. I've csupped today and
> > rebuild world & generic kernel but still it's very unstable, sometimes it
> > even hangs when activating geom volumes at boot time...
> > I must add that this is a new system so I'm not 100% sure the hardware is 
> > sane.
> > Using ZFS it also crashed when doing intensive I/O.
>
> This is very interesting.  It seems to there are several of us who are
> experiencing something that *looks* like hardware (disk) issues when using 
> 7.0.
>
> Could this be related to the mouse freeze issue?  Could some process be
> locking/grabbing the CPU at inopportune times and causing not only the
> freezing symptoms but also reads/writes problems?
>
> Can anyone else using 7.0 who hasn't already (especially those using ZFS)
> check his/her /var/log/messages for disk TIMEOUTs or other disk error
> messages?  If this is widespread, I think the chances re slim that it is a
> hardware problem in every case.

I've had this problem with Hitachi sata drives using a promise sata controller.
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Re: ad8: TIMEOUT - WRITE_DMA errors UFS 7.0-RC1

2008-01-26 Thread Joe Peterson
Jeremy Chadwick wrote:
>> If this is widespread, I think the chances re slim that it is a
>> hardware problem in every case.
> 
> I'm in definite agreement here.  I think it might be worthwhile to note
> what hardware we're all using, in case there's something similar between
> our systems (chipset, disk vendor, etc.).
> 
> My system is as follows; timeouts were reported during an rsync of data
> from the ZFS stripe (ad8+ad10) to a UFS2 filesystem on ad6.  System
> eventually panic'd after remaining deadlocked (while kernel messages
> about timeouts kept printing on the console for ad6 only) for 10-15
> minutes.
>
> *   MB: Supermicro PDSMI+  (Intel ICH7-based)
> *  CPU: Intel Core 2 Duo E6600
> *  RAM: Corsair CM2X1024-6400 DDR2, 2GB
> *  ad4: WD Caviar SE WD2000JD (boot/OS)
> *  ad6: Seagate Barracuda 7200.10 ST3500630AS
> *  ad8: WD Caviar SE16 WD5000AAKS (ZFS stripe)
> * ad10: WD Caviar SE16 WD5000AAKS (ZFS stripe)
> * All drives are hooked up to the ICH7.
> * SMART stats showed no problems on any of the drives before or after.
> * RELENG_7, i386, ULE scheduler.

Mine is as follows:

*   MB: Tyan Trinity S2099
*  CPU: Pentium 4, 2.4GHz
*  RAM: Crucial DDR, ECC, CL2.5, Unbuffered 2GB (1/2 PC2100, 1/2 PC2700)
*  ad0: Seagate ST3500630A 3.AAE (1 UFS2 boot, 1 ZFS pool)
*  ad1: Seagate ST3160812A 3.AAH (not used by FreeBSD)
* Intel ICH4 UDMA100 controller
* ATI Radeon RV280 9250
* Intel PRO/1000 NIC
* 7.0-RC1, i386, ULE scheduler

-Joe
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Re: ad8: TIMEOUT - WRITE_DMA errors UFS 7.0-RC1

2008-01-26 Thread Jeremy Chadwick
On Sat, Jan 26, 2008 at 04:28:29PM -0700, Joe Peterson wrote:
> Remco van Bekkum wrote:
> > Same here. On an amd64 system with 1x sata disk (Western Digital Caviar
> > Green Power) on an amd690G chipset, with UFS and intensive disk activity
> > the system hangs and in the end it may panic. I've csupped today and
> > rebuild world & generic kernel but still it's very unstable, sometimes it
> > even hangs when activating geom volumes at boot time... 
> > I must add that this is a new system so I'm not 100% sure the hardware is 
> > sane.
> > Using ZFS it also crashed when doing intensive I/O.
> 
> This is very interesting.  It seems to there are several of us who are
> experiencing something that *looks* like hardware (disk) issues when using 
> 7.0.

We need Soren Schmidt and/or Xin Li to help with this situation.  I
really don't know what we can provide (other than hardware, which I am
more than happy to donate).  In my case, I was able to let the machine
remain broken for 15 minutes or so, and it eventually panic'd.  Of
course due to PR 118255, it's becoming difficult to get a coredump.

> Could this be related to the mouse freeze issue?  Could some process be
> locking/grabbing the CPU at inopportune times and causing not only the
> freezing symptoms but also reads/writes problems?

I don't use a mouse on my systems, but what you've described is
possible.  I'm guessing some sort of loop in the kernel (or a driver)
which holds the system down for too long.

> If this is widespread, I think the chances re slim that it is a
> hardware problem in every case.

I'm in definite agreement here.  I think it might be worthwhile to note
what hardware we're all using, in case there's something similar between
our systems (chipset, disk vendor, etc.).

My system is as follows; timeouts were reported during an rsync of data
from the ZFS stripe (ad8+ad10) to a UFS2 filesystem on ad6.  System
eventually panic'd after remaining deadlocked (while kernel messages
about timeouts kept printing on the console for ad6 only) for 10-15
minutes.

*   MB: Supermicro PDSMI+  (Intel ICH7-based)
*  CPU: Intel Core 2 Duo E6600
*  RAM: Corsair CM2X1024-6400 DDR2, 2GB
*  ad4: WD Caviar SE WD2000JD (boot/OS)
*  ad6: Seagate Barracuda 7200.10 ST3500630AS
*  ad8: WD Caviar SE16 WD5000AAKS (ZFS stripe)
* ad10: WD Caviar SE16 WD5000AAKS (ZFS stripe)
* All drives are hooked up to the ICH7.
* SMART stats showed no problems on any of the drives before or after.
* RELENG_7, i386, ULE scheduler.

-- 
| Jeremy Chadwickjdc at parodius.com |
| Parodius Networking   http://www.parodius.com/ |
| UNIX Systems Administrator  Mountain View, CA, USA |
| Making life hard for others since 1977.  PGP: 4BD6C0CB |

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Re: ad8: TIMEOUT - WRITE_DMA errors UFS 7.0-RC1

2008-01-26 Thread Josh Carroll
> Can anyone else using 7.0 who hasn't already (especially those using ZFS)
> check his/her /var/log/messages for disk TIMEOUTs or other disk error
> messages?  If this is widespread, I think the chances re slim that it is a
> hardware problem in every case.

I noticed this week that I was getting DMA WRITE timeouts on two of my
disks on my 7.0-RC1 box. The strange thing in my case was that only 2
of my 3 drives were exhibiting the behavior. The two having the
problem were both SATA300 drives, while the third was SATA150. I
jumpered the two "bad" drives to SATA150, and the timeouts went away.
I replaced the motherboard, set the two drives back to SATA300 and
have not had a timeout since. I was thinking maybe it was related, but
in my case it was truly a hardware failure.

Here were the messages, for what it's worth:

Jan 23 10:05:01 pflog kernel: ad10: TIMEOUT - WRITE_DMA retrying (1
retry left) LBA=1525567
Jan 23 10:05:09 pflog kernel: ad10: TIMEOUT - WRITE_DMA retrying (1
retry left) LBA=3828159
Jan 23 10:07:27 pflog kernel: ad10: TIMEOUT - WRITE_DMA retrying (1
retry left) LBA=3450111
Jan 23 10:07:33 pflog kernel: ad10: TIMEOUT - WRITE_DMA retrying (1
retry left) LBA=4561983
Jan 23 11:30:27 pflog kernel: ad10: TIMEOUT - WRITE_DMA retrying (1
retry left) LBA=4178303
Jan 23 11:30:33 pflog kernel: ad10: TIMEOUT - WRITE_DMA retrying (1
retry left) LBA=5660287
Jan 23 11:30:39 pflog kernel: ad10: TIMEOUT - WRITE_DMA retrying (1
retry left) LBA=6805951
Jan 23 11:30:48 pflog kernel: ad10: TIMEOUT - WRITE_DMA retrying (1
retry left) LBA=9856959

Josh
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Re: ad8: TIMEOUT - WRITE_DMA errors UFS 7.0-RC1

2008-01-26 Thread Joe Peterson
Remco van Bekkum wrote:
> Same here. On an amd64 system with 1x sata disk (Western Digital Caviar
> Green Power) on an amd690G chipset, with UFS and intensive disk activity
> the system hangs and in the end it may panic. I've csupped today and
> rebuild world & generic kernel but still it's very unstable, sometimes it
> even hangs when activating geom volumes at boot time... 
> I must add that this is a new system so I'm not 100% sure the hardware is 
> sane.
> Using ZFS it also crashed when doing intensive I/O.

This is very interesting.  It seems to there are several of us who are
experiencing something that *looks* like hardware (disk) issues when using 7.0.

Could this be related to the mouse freeze issue?  Could some process be
locking/grabbing the CPU at inopportune times and causing not only the
freezing symptoms but also reads/writes problems?

Can anyone else using 7.0 who hasn't already (especially those using ZFS)
check his/her /var/log/messages for disk TIMEOUTs or other disk error
messages?  If this is widespread, I think the chances re slim that it is a
hardware problem in every case.

-Joe
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Re: ad8: TIMEOUT - WRITE_DMA errors UFS 7.0-RC1

2008-01-26 Thread Remco van Bekkum
Same here. On an amd64 system with 1x sata disk (Western Digital Caviar
Green Power) on an amd690G chipset, with UFS and intensive disk activity
the system hangs and in the end it may panic. I've csupped today and
rebuild world & generic kernel but still it's very unstable, sometimes it
even hangs when activating geom volumes at boot time... 
I must add that this is a new system so I'm not 100% sure the hardware is sane.
Using ZFS it also crashed when doing intensive I/O.

I can supply additional info later if that may help.

Cheers,

Remco

On Sat, Jan 26, 2008 at 10:54:17PM +0100, Nikolaj Farrell wrote:
> After upgrading from RELENG_6_2 to 7.0-RC1 I am experiencing system 
> becoming unresponsive during intensive disk operations. Only solution is 
> a power off. These hangs occured pretty much within a few hours of first 
> running 7.0-RC1. 6.2R was fine. I am not running ZFS.
> 
> The hangs are easy to reproduce by an unrar of an archive ~4.4GB. The 
> system will not hang during "normal" operations.
> 
> Below are the errors I get, output from dmesg, atacontrol cap and 
> smartctl tests. (The long test is aborted below, but as indicated 
> previously completed without errors)
> 
> These are the errors:
> ---
> Jan 26 19:55:36 athlon kernel: ad8: WARNING - SETFEATURES SET TRANSFER 
> MODE taskqueue timeout - completing request directly
> Jan 26 19:55:36 athlon kernel: ad8: WARNING - SETFEATURES ENABLE RCACHE 
> taskqueue timeout - completing request directly
> Jan 26 19:55:36 athlon kernel: ad8: WARNING - SETFEATURES ENABLE WCACHE 
> taskqueue timeout - completing request directly
> Jan 26 19:55:36 athlon kernel: ad8: WARNING - SET_MULTI taskqueue 
> timeout - completing request directly
> Jan 26 19:55:36 athlon kernel: ad8: TIMEOUT - WRITE_DMA retrying (1 
> retry left) LBA=2415
> Jan 26 19:55:36 athlon kernel: ad8: WARNING - SETFEATURES SET TRANSFER 
> MODE taskqueue timeout - completing request directly
> Jan 26 19:55:36 athlon kernel: ad8: WARNING - SETFEATURES SET TRANSFER 
> MODE taskqueue timeout - completing request directly
> Jan 26 19:55:36 athlon kernel: ad8: WARNING - SETFEATURES ENABLE RCACHE 
> taskqueue timeout - completing request directly
> Jan 26 19:55:36 athlon kernel: ad8: WARNING - SETFEATURES ENABLE WCACHE 
> taskqueue timeout - completing request directly
> Jan 26 19:55:36 athlon kernel: ad8: WARNING - SET_MULTI taskqueue 
> timeout - completing request directly
> Jan 26 19:55:36 athlon kernel: ad8: TIMEOUT - WRITE_DMA retrying (1 
> retry left) LBA=2543
> ---
> and so on...
> 
> This computer has only the one SATA hard drive.
> dmesg info:
> atapci1:  port 
> 0xcc00-0xcc07,0xc880-0xc883,0xc800-0xc807,0xc480-0xc483,0xc400-0xc40f,0xc000-0xc0ff
>  
> irq 21 at device 15.0 on pci0
> atapci1: [ITHREAD]
> ata4:  on atapci1
> ad8: 238475MB  at ata4-master SATA150
> 
> ---
> 
> atacontrol cap ad8
> 
> Protocol  Serial ATA II
> device model  SAMSUNG SP2504C
> serial number S09QJ1CP201268
> firmware revision VT100-50
> cylinders 16383
> heads 16
> sectors/track 63
> lba supported 268435455 sectors
> lba48 supported   488397168 sectors
> dma supported
> overlap not supported
> 
> Feature  Support  EnableValue   Vendor
> write cacheyes  yes
> read ahead yes  yes
> Native Command Queuing (NCQ)   yes   -  31/0x1F
> Tagged Command Queuing (TCQ)   no   no  31/0x1F
> SMART  yes  yes
> microcode download yes  yes
> security   yes  no
> power management   yes  yes
> advanced power management  no   no  0/0x00
> automatic acoustic management  yes  no  0/0x00  254/0xFE
> 
> ---
> smartctl -a /dev/ad8:
> 
> === START OF INFORMATION SECTION ===
> Model Family: SAMSUNG SpinPoint P120 series
> Device Model: SAMSUNG SP2504C
> Serial Number:S09QJ1CP201268
> Firmware Version: VT100-50
> User Capacity:250 059 350 016 bytes
> Device is:In smartctl database [for details use: -P show]
> ATA Version is:   7
> ATA Standard is:  ATA/ATAPI-7 T13 1532D revision 4a
> Local Time is:Sat Jan 26 22:44:43 2008 CET
> SMART support is: Available - device has SMART capability.
> SMART support is: Enabled
> 
> === START OF READ SMART DATA SECTION ===
> SMART overall-health self-assessment test result: PASSED
> 
> General SMART Values:
> Offline data collection status:  (0x02) Offline data collection activity
> was completed without error.
> Auto Offline Data Collection: 
> Disabled.
> Self-test execution status:  (  25) The self-test routine was aborted by
> the host.
> Total time to complete Offline
> data collection: (5028) seconds.
> Offline data collection
> capabilities: