Hello misc,
I am having a problem with a mirroring softraid configuration.
Every time I try to access a particular partition in softraid
volume I start to get I/O errors so that softraid totally "breaks",
that is, becomes non-operative.
Note that it does very much look like that both of these
disks are actually defective.
$ disklabel sd0
# /dev/rsd0c:
type: SCSI
disk: SCSI disk
label: WDC WD3200AAKS-0
duid: 800258c4df44247f
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 255
sectors/cylinder: 16065
cylinders: 38913
total sectors: 625142448
boundstart: 63
boundend: 625137345
drivedata: 0
16 partitions:
#size offset fstype [fsize bsize cpg]
a: 530082 63 4.2BSD 2048 163841 # /
b: 8401995 530145swap
c:6251424480 unused
d:616205205 8932140RAID
$ disklabel sd1
# /dev/rsd1c:
type: SCSI
disk: SCSI disk
label: WDC WD3200AAKS-0
duid: ec6572ba6b33d733
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 255
sectors/cylinder: 16065
cylinders: 38913
total sectors: 625142448
boundstart: 63
boundend: 625137345
drivedata: 0
16 partitions:
#size offset fstype [fsize bsize cpg]
a: 530082 63 4.2BSD 2048 163841
b: 8401995 530145swap
c:6251424480 unused
d:616205205 8932140RAID
The situation now:
$ bioctl -i sd3
Volume Status Size Device
softraid0 0 Degraded 315496794624 sd3 RAID1
0 Online 315496794624 0:0.0 noencl
1 Offline 0 0:1.0 noencl
$ disklabel sd3
# /dev/rsd3c:
type: SCSI
disk: SCSI disk
label: SR RAID 1
duid: 80ebde8831825f63
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 255
sectors/cylinder: 16065
cylinders: 38356
total sectors: 616204677
boundstart: 0
boundend: 616204677
drivedata: 0
16 partitions:
#size offset fstype [fsize bsize cpg]
c:6162046770 unused
d: 125949440 4.2BSD 2048 163841 # /tmp
e:125821088 12594944 4.2BSD 2048 163841 # /usr
f: 8385920138416032 4.2BSD 2048 163841 # /var
g:125821088146801952 4.2BSD 2048 163841 # /home
h:343581632272623040 4.2BSD 4096 327681
I can use the partitions /dev/sd3{d,e,f,g} just fine. However, whenever
I try to do any of the following:
* fsck /dev/sd3h
* dd if=/dev/sd3h of=/dev/null
* dump /dev/sd3h
* bioctl -R /dev/someotherraidvolume sd3
after a few seconds I will get I/O errors from the softraid volume.
These errors are such that after it *any* operation to sd3,
for example "bioctl -i sd3", or "disklabel sd3" will simply
return an I/O error, and the system must be rebooted.
Note that I said that I think both disks are defective. When
the system is booted with softraid disabled and then the disks
(sd0 and sd1) are read with
"dd if=/dev/rsd0c of=/dev/null conv=noerror,sync",
dd reports several I/O errors (a few such errors every now and then).
Possibly some softraid-related metadata is corrupted?
Any ideas on how to recover data from /dev/sd3h? Do the above
dd-command to some file and then use scan_ffs? Might that work?
This is 5.3, built from source.
Juha
dmesg (btw, "Logitech Logitech Cordless RumblePad 2" works great with
mupen64plus,
a bit of configuration was needed though ;-)
OpenBSD 5.3 (GENERIC) #0: Sun Mar 17 21:03:56 EET 2013
bu...@iso.turnipsi.no-ip.org:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: AMD Sempron(tm) 140 Processor ("AuthenticAMD" 686-class, 1024KB L2 cache)
2.71 GHz
cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW,SSE3,MWAIT,CX16,POPCNT,LAHF,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,WDT,ITSC
real mem = 1878126592 (1791MB)
avail mem = 1836462080 (1751MB)
mainbus0 at root
bios0 at mainbus0: AT/286+ BIOS, date 09/14/09, BIOS32 rev. 0 @ 0xf0010, SMBIOS
rev. 2.5 @ 0xf06d0 (63 entries)
bios0: vendor American Megatrends Inc. version "1501" date 09/14/2009
bios0: ASUSTeK Computer INC. M4A78 PRO
acpi0 at bios0: rev 0
acpi0: sleep states S0 S1 S3 S4 S5
acpi0: tables DSDT FACP APIC MCFG OEMB HPET SSDT
acpi0: wakeup devices PCE2(S4) PCE3(S4) PCE4(S4) PCE5(S4) PCE6(S4) PCE7(S4)
PCE9(S4) PCEA(S4) PCEB(S4) PCEC(S4) SBAZ(S4) UAR1(S4) PS2K(S4) PS2M(S4)
P0PC(S4) UHC1(S4) UHC2(S4) UHC3(S4) USB4(S4) UHC5(S4) UHC6(S4) UHC7(S4)
acpitimer0 at acpi0: 3579545 Hz, 32 bits
acpimadt0 at acpi0 addr 0xfee0: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: AMD erratum 721 detected and fixed
cpu0: apic clock running at 200MHz
ioapi
