Hello.
This is a follow-up of a previous thread, which can be found here:
http://lists.freebsd.org/pipermail/freebsd-questions/2011-July/232257.html
I finally have two working WD Green drives: they have run severel times
for more than a few days continuosly and I've run their full diags a few
times over a span of some weeks, so I think I can be sure of that.
Still I experience lot of troubles; however, trying different boxes, I
found out that these depend heavily on the controller I use.
A) A-Bit KV7 (featuring a VIA KT600) on 7.3 and 8.2/i386
With only one disk, I get some NID_NOT_FOUND errors, but I could almost
say they can be ignored.
With two disks, the NID_NOT_FOUND errors come frequently; rsync will
work, but a "diff" will sooner or later fail.
I tried Linux on this box: it frequently complains about errors and
resets the ATA channels; this possibly will result in performance
penalties, but it seems to work.
Since then this box is dead, so I cannot do other tests.
B) BioStar A785G3 with 8.1/i386:
# pciconf -lv
atapci0@pci0:0:17:0: class=0x010601 card=0x43911002 chip=0x43911002 rev=0x00
hdr=0x00
vendor = 'ATI Technologies Inc. / Advanced Micro Devices, Inc.'
device = 'SB700 SATA Controller [AHCI mode]'
class = mass storage
subclass = SATA
This works flawlessly.
C) Intel SC5400BRP with 7.3/i386:
atapci2@pci0:0:31:2: class=0x01018f card=0x34768086 chip=0x26808086 rev=0x09
hdr=0x00
vendor = 'Intel Corporation'
device = '631xESB/632xESB/3100 Serial ATA Storage Controller'
class = mass storage
subclass = ATA
No way this will work: using two disk gives gobs of errors, until the
whole box crashes.
With only one disk it appears to work for a while, but will eventually
panic over a few day.
This same controller used to work with a single Hitachi drive.
With two Seagates drives, I get READ_DMA48/WRITE_DMA48 timeouts, the
disks will hang for minutes, but then they will start again; this does
not happen as soon as I start using them, but will happen every some
minutes after a few hours of usage.
D) Intel SC5600BRP with 7.3/amd64:
atapci0@pci0:0:31:2: class=0x01018f card=0x34dc8086 chip=0x3a208086 rev=0x00
hdr=0x00
vendor = 'Intel Corporation'
device = 'SATA2(4Port2) (ICH10 Family)'
class = mass storage
subclass = ATA
atapci1@pci0:0:31:5: class=0x010185 card=0x34dc8086 chip=0x3a268086 rev=0x00
hdr=0x00
vendor = 'Intel Corporation'
device = 'SATA2(2Port2) (ICH10 Family)'
class = mass storage
subclass = ATA
This works flawlessly, with every HD I could try (one or two).
E) Promise PCI controller with 7.3/i386 and /amd64:
atapci0@pci0:7:2:0: class=0x018000 card=0x3d17105a chip=0x3d17105a rev=0x02
hdr=0x00
vendor = 'Promise Technology Inc'
device = 'SATA 300 TX4 Controller (PDC40718-GP)'
class = mass storage
This will give few errors if not none at all; however the box will
sometimes reboot or just hang (phisical reset required).
This happens on two different box with both WD Green and Seagate drives.
So: altough a bit flaky, WD drives are not the main problem.
I'll still appreciate some help WRT the third box (Intel SC5400BRP with
7.3/i386).
Different BIOS settings did not help with WD drives, but I still have to
test them with Seagate's.
Possibly an OS upgrade would help? 8.x also has an AHCI driver that 7.3
is missing.
I don't care that much for top of the chart performance, I just want
this thing to work decently.
bye & Thanks
av.
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