lkml.org 
[lkml]   [2004]   [Jul]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRAID1 Corruption
Date
Ok, here's the deal. My friend has a Dual-CPU PowerMac 9600, and it's 
randomly corrupting it's filesystem. Kernel is 2.6.5, unpatched.

Currently it's set up as thus:

IDE Harddrives -> MD RAID1 -> LVM -> XFS

Everything works fine with only one drive in the RAID1 (not that it's
much of a RAID1 that way). Add in a second drive (100% clean), sync it
up, and it eats the filesystem.

I'm really quite baffled as to why this is happening, and my friend is
getting understandably frustrated.

# uname -a
Linux egunn 2.6.5 #4 SMP Thu Jun 24 22:15:21 CDT 2004 ppc GNU/Linux

# cat /proc/ide/pdc202xx

Ultra66 Chipset.
------------------------------- General Status
---------------------------------
Burst Mode : enabled
Host Mode : Tri-Stated
Bus Clocking : 100 External
IO pad select : 10 mA
Status Polling Period : 15
Interrupt Check Status Polling Delay : 15
--------------- Primary Channel ---------------- Secondary Channel
-------------
disabled disabled
66 Clocking enabled enabled
Mode MASTER Mode MASTER
Error Error
--------------- drive0 --------- drive1 -------- drive0 ----------
drive1 ------
DMA enabled: yes yes yes yes
DMA Mode: UDMA 4 NOTSET UDMA 4
NOTSET
PIO Mode: PIO 4 NOTSET PIO 4
NOTSET
# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid5]
md0 : active raid1 hde[0] hdg[1]
40146560 blocks [2/2] [UU]

unused devices: <none>

# pvdisplay
--- Physical volume ---
PV Name /dev/md0
VG Name raid40gs
PV Size 38.29 GB / not usable 0
Allocatable yes (but full)
PE Size (KByte) 4096
Total PE 9801
Free PE 0
Allocated PE 9801
PV UUID lKMk7i-S9Ex-OWsl-tp1Y-ujvy-GrgS-sINUpT
# vgdisplay
--- Volume group ---
VG Name raid40gs
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 3
Open LV 3
Max PV 0
Cur PV 1
Act PV 1
VG Size 38.29 GB
PE Size 4.00 MB
Total PE 9801
Alloc PE / Size 9801 / 38.29 GB
Free PE / Size 0 / 0
VG UUID 96IWfR-zm53-3qD8-ZilV-9zW6-VG87-36QqDI

# lvdisplay
--- Logical volume ---
LV Name /dev/raid40gs/var
VG Name raid40gs
LV UUID jgdM0R-fp4I-LgAl-s1vI-63i0-WHX6-OfnU69
LV Write Access read/write
LV Status available
# open 1
LV Size 4.88 GB
Current LE 1250
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:0

--- Logical volume ---
LV Name /dev/raid40gs/usr
VG Name raid40gs
LV UUID hWtNL5-gfaq-jwj4-R6XD-Sew2-TKCy-fxLKrW
LV Write Access read/write
LV Status available
# open 1
LV Size 4.88 GB
Current LE 1250
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:1

--- Logical volume ---
LV Name /dev/raid40gs/home
VG Name raid40gs
LV UUID myekKQ-eXR7-0dGV-ZMg6-ISPG-Hijh-ZmDA5V
LV Write Access read/write
LV Status available
# open 1
LV Size 28.52 GB
Current LE 7301
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:2


--
Tony 'Nicoya' Mantler -- Master of Code-fu -- nicoya@ubb.ca
-- http://nicoya.feline.pp.se/ -- http://www.ubb.ca/ --

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:04    [from the cache]
©2003-2011 Jasper Spaans. Advertise on this site