I am sorry because there is no information very.
I currently ext3 file system.
I composed RAID-1(/dev/md0) disk array by order such as lower part.
mkfs.ext3 -j /dev/sda1
mkfs.ext3 -j /dev/sda1
mdadm -Cv /dev/md0 --level=1 --raid-devices=2 /dev/sda1 /dev/sdb1
[root@sentry24 root]# cat /proc/mdstat ; cat /proc/mounts
Personalities : [raid1]
md0 : active raid1 sda1[0] sdb1[1]
244195904 blocks [2/2] [UU]
unused devices: <none>
rootfs / rootfs rw 0 0
/dev/root / ext3 rw,noatime 0 0
proc /proc proc rw,nodiratime 0 0
sysfs /sys sysfs rw 0 0
devpts /dev/pts devpts rw 0 0
tmpfs /dev/shm tmpfs rw 0 0
tmpfs /tmp tmpfs rw 0 0
tmpfs /var tmpfs rw 0 0
none /proc/bus/usb usbfs rw 0 0
/dev/md0 /data/disk1 ext3 rw,noatime 0 0
After compose RAID-1 disk array, subordinate did serious disk I/O by
order such as lower part.
scp -r root@xxxxxxxxxxxx:/data/disk3/*.avi /data/disk1/
It became mount by to readonly while copy file at 30 minutes.
[root@root root]# cat /proc/mdstat ; cat /proc/mounts
Personalities : [raid1]
md0 : active raid1 sda1[0] sdb1[1]
244195904 blocks [2/2] [UU]
unused devices: <none>
rootfs / rootfs rw 0 0
/dev/root / ext3 rw,noatime 0 0
proc /proc proc rw,nodiratime 0 0
sysfs /sys sysfs rw 0 0
devpts /dev/pts devpts rw 0 0
tmpfs /dev/shm tmpfs rw 0 0
tmpfs /tmp tmpfs rw 0 0
tmpfs /var tmpfs rw 0 0
none /proc/bus/usb usbfs rw 0 0
/dev/md0 /data/disk3 ext3 ro,noatime 0 0 <------------- changed readonly
[root@rootroot]# ls -l /data/disk3/dvr
total 0
[root@rootroot]# vmstat 1
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
5 0 128 6592 299528 32676 0 0 386 2 1328 1268 35 64 1 1
2 0 128 6468 299528 32676 0 0 0 0 1346 6578 52 48 0 0
2 0 128 6468 299528 32676 0 0 0 0 1344 7606 28 72 0 0
[root@sentry24 root]# tail -f /var/log/kern.log
Dec 10 01:36:32 kernel: [ 48.647619] EXT3 FS on hda1, internal journal
Dec 10 01:36:32 kernel: [ 52.516666] SCSI subsystem initialized
Dec 10 01:36:32 kernel: [ 52.551594] PROMISE SATA-II 150/300
Series Linux Driver v1.01.0.20
Dec 10 01:36:32 kernel: [ 52.553736] ACPI: PCI Interrupt
0000:01:05.0[A] -> GSI 16 (level, low) -> IRQ 177
Dec 10 01:36:32 kernel: [ 52.693131] ulsata2:[info] Drive
1/0: WDC WD2500JS-22MHB0 488397167s 250059MB UDMA6
Dec 10 01:36:32 kernel: [ 52.807338] ulsata2:[info] Drive
3/0: WDC WD2500JS-22MHB0 488397167s 250059MB UDMA6
Dec 10 01:36:32 kernel: [ 52.809447] scsi0 : ulsata2
Dec 10 01:36:32 kernel: [ 52.823914] Vendor:
Model: WDC WD2500JS-22M Rev:
Dec 10 01:36:32 kernel: [ 52.826003] Type: Direct-Access
ANSI SCSI revision: 02
Dec 10 01:36:32 kernel: [ 52.852253] Vendor:
Model: WDC WD2500JS-22M Rev:
Dec 10 01:36:32 kernel: [ 52.854580] Type: Direct-Access
ANSI SCSI revision: 02
Dec 10 01:36:32 kernel: [ 52.942756] SCSI device sda:
488397168 512-byte hdwr sectors (250059 MB)
Dec 10 01:36:32 kernel: [ 52.944896] sda: got wrong page
Dec 10 01:36:32 kernel: [ 52.946855] sda: assuming drive
cache: write through
Dec 10 01:36:32 kernel: [ 52.961355] SCSI device sda:
488397168 512-byte hdwr sectors (250059 MB)
Dec 10 01:36:32 kernel: [ 52.963487] sda: got wrong page
Dec 10 01:36:32 kernel: [ 52.965451] sda: assuming drive
cache: write through
Dec 10 01:36:32 kernel: [ 52.967431] sda: sda1
Dec 10 01:36:32 kernel: [ 52.989793] Attached scsi disk sda
at scsi0, channel 0, id 0, lun 0
Dec 10 01:36:32 kernel: [ 52.991983] SCSI device sdb:
488397168 512-byte hdwr sectors (250059 MB)
Dec 10 01:36:32 kernel: [ 52.994016] sdb: got wrong page
Dec 10 01:36:32 kernel: [ 52.996018] sdb: assuming drive
cache: write through
Dec 10 01:36:32 kernel: [ 53.004583] SCSI device sdb:
488397168 512-byte hdwr sectors (250059 MB)
Dec 10 01:36:32 kernel: [ 53.006722] sdb: got wrong page
Dec 10 01:36:32 kernel: [ 53.008714] sdb: assuming drive
cache: write through
Dec 10 01:36:32 kernel: [ 53.010803] sdb: sdb1
Dec 10 01:36:32 kernel: [ 53.038174] Attached scsi disk sdb
at scsi0, channel 0, id 2, lun 0
Dec 10 01:36:32 kernel: [ 53.195957] Intel(R) PRO/1000
Network Driver - version 6.0.60-k2
Dec 10 01:36:32 kernel: [ 53.198108] Copyright (c) 1999-2005
Intel Corporation.
Dec 10 01:36:32 kernel: [ 53.212695] ACPI: PCI Interrupt
0000:01:03.0[A] -> GSI 21 (level, low) -> IRQ 185
Dec 10 01:36:32 kernel: [ 53.682839] e1000: eth0:
e1000_probe: Intel(R) PRO/1000 Network Connection
Dec 10 01:36:32 kernel: [ 53.999922] usbcore: registered new
driver usbfs
Dec 10 01:36:32 kernel: [ 54.014605] usbcore: registered new driver hub
Dec 10 01:36:32 kernel: [ 54.059477] ACPI: PCI Interrupt
0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 193
Dec 10 01:36:32 kernel: [ 54.061754] PCI: Setting latency
timer of device 0000:00:1d.7 to 64
Dec 10 01:36:32 kernel: [ 54.061761] ehci_hcd 0000:00:1d.7:
Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller
Dec 10 01:36:32 kernel: [ 54.078687] ehci_hcd 0000:00:1d.7:
new USB bus registered, assigned bus number 1
Dec 10 01:36:32 kernel: [ 54.081030] ehci_hcd 0000:00:1d.7:
irq 193, io mem 0xe8180000
Dec 10 01:36:32 kernel: [ 54.087181] PCI: cache line size of
128 is not supported by device 0000:00:1d.7
Dec 10 01:36:32 kernel: [ 54.087189] ehci_hcd 0000:00:1d.7:
USB 2.0 initialized, EHCI 1.00, driver 10 Dec 2004
Dec 10 01:36:32 kernel: [ 54.116718] hub 1-0:1.0: USB hub found
Dec 10 01:36:32 kernel: [ 54.119049] hub 1-0:1.0: 6 ports detected
Dec 10 01:36:32 kernel: [ 54.675098] md: md driver 0.90.2
MAX_MD_DEVS=256, MD_SB_DISKS=27
Dec 10 01:36:32 kernel: [ 54.677398] md: bitmap version 3.38
Dec 10 01:36:32 kernel: [ 54.694205] md: raid1 personality
registered as nr 3
Dec 10 01:36:32 kernel: [ 54.868492] USB Universal Host
Controller Interface driver v2.3
Dec 10 01:36:32 kernel: [ 54.883020] ACPI: PCI Interrupt
0000:00:1d.0[A] -> GSI 16 (level, low) -> IRQ 177
Dec 10 01:36:32 kernel: [ 54.885145] PCI: Setting latency
timer of device 0000:00:1d.0 to 64
Dec 10 01:36:32 kernel: [ 54.885151] uhci_hcd 0000:00:1d.0:
Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI
Controller #1
Dec 10 01:36:32 kernel: [ 54.901825] uhci_hcd 0000:00:1d.0:
new USB bus registered, assigned bus number 2
Dec 10 01:36:32 kernel: [ 54.904054] uhci_hcd 0000:00:1d.0:
irq 177, io base 0x0000e200
Dec 10 01:36:32 kernel: [ 55.034027] hub 2-0:1.0: USB hub found
Dec 10 01:36:32 kernel: [ 55.036202] hub 2-0:1.0: 2 ports detected
Dec 10 01:36:32 kernel: [ 55.362260] ACPI: PCI Interrupt
0000:00:1d.1[B] -> GSI 19 (level, low) -> IRQ 201
Dec 10 01:36:32 kernel: [ 55.364448] PCI: Setting latency
timer of device 0000:00:1d.1 to 64
Dec 10 01:36:32 kernel: [ 55.364454] uhci_hcd 0000:00:1d.1:
Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI
Controller #2
Dec 10 01:36:32 kernel: [ 55.381310] uhci_hcd 0000:00:1d.1:
new USB bus registered, assigned bus number 3
Dec 10 01:36:32 kernel: [ 55.383568] uhci_hcd 0000:00:1d.1:
irq 201, io base 0x0000e000
Dec 10 01:36:32 kernel: [ 55.434004] hub 3-0:1.0: USB hub found
Dec 10 01:36:32 kernel: [ 55.436192] hub 3-0:1.0: 2 ports detected
Dec 10 01:36:32 kernel: [ 55.457925] ACPI: PCI Interrupt
0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 169
Dec 10 01:36:32 kernel: [ 55.460171] PCI: Setting latency
timer of device 0000:00:1d.2 to 64
Dec 10 01:36:32 kernel: [ 55.460177] uhci_hcd 0000:00:1d.2:
Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI
Controller #3
Dec 10 01:36:32 kernel: [ 55.477009] uhci_hcd 0000:00:1d.2:
new USB bus registered, assigned bus number 4
Dec 10 01:36:32 kernel: [ 55.479289] uhci_hcd 0000:00:1d.2:
irq 169, io base 0x0000e100
Dec 10 01:36:32 kernel: [ 55.503270] hub 4-0:1.0: USB hub found
Dec 10 01:36:32 kernel: [ 55.505478] hub 4-0:1.0: 2 ports detected
Dec 10 01:36:32 kernel: [ 56.429056] Initializing USB Mass
Storage driver...
Dec 10 01:36:32 kernel: [ 56.597725] usb 4-2: new full speed
USB device using uhci_hcd and address 2
Dec 10 01:36:32 kernel: [ 58.327192] usbcore: registered new
driver usb-storage
Dec 10 01:36:32 kernel: [ 58.329386] USB Mass Storage support
registered.
Dec 10 01:36:32 kernel: [ 58.382477] usbcore: registered new
driver usbserial
Dec 10 01:36:32 kernel: [ 58.397053]
drivers/usb/serial/usb-serial.c: USB Serial support registered for
Generic
Dec 10 01:36:32 kernel: [ 58.411747] usbcore: registered new
driver usbserial_generic
Dec 10 01:36:32 kernel: [ 58.633823]
drivers/usb/serial/usb-serial.c: USB Serial Driver core v2.0
Dec 10 01:36:32 kernel: [ 58.760438] usbcore: registered new
driver hiddev
Dec 10 01:36:32 kernel: [ 58.778876] input: USB HID v1.00
Device [Burr-Brown from TI USB Audio CODEC ] on
usb-0000:00:1d.2-2
Dec 10 01:36:32 kernel: [ 58.783803] usbcore: registered new
driver usbhid
Dec 10 01:36:32 kernel: [ 58.786300]
drivers/usb/input/hid-core.c: v2.01:USB HID core driver
Dec 10 01:36:32 kernel: [ 58.894333]
drivers/usb/serial/usb-serial.c: USB Serial support registered for
PL-2303
Dec 10 01:36:32 kernel: [ 58.909269] usbcore: registered new
driver pl2303
Dec 10 01:36:32 kernel: [ 58.911796]
drivers/usb/serial/pl2303.c: Prolific PL2303 USB to serial adaptor
driver v0.12
Dec 10 01:36:32 kernel: [ 59.014389] ieee1394: Initialized
config rom entry `ip1394'
Dec 10 01:36:32 kernel: [ 59.078076] usbcore: registered new
driver snd-usb-audio
Dec 10 01:36:32 kernel: [ 59.199443] sbp2: $Rev: 1306 $ Ben
Collins <bcollins@xxxxxxxxxx>
Dec 10 01:36:32 kernel: [ 59.232766] ACPI: Power Button (FF) [PWRF]
Dec 10 01:36:32 kernel: [ 59.235234] ACPI: Power Button (CM) [PWRB]
Dec 10 01:36:32 kernel: [ 59.526876] odcap_driver.c:910:
odcap: driver registered for major 97.
Dec 10 01:36:32 kernel: [ 59.541867] odcap_driver.c:278:
odcap0: device found.
Dec 10 01:36:32 kernel: [ 59.544359] ACPI: PCI Interrupt
0000:01:06.0[A] -> GSI 17 (level, low) -> IRQ 209
Dec 10 01:36:32 kernel: [ 59.546836] PCI: Setting latency
timer of device 0000:01:06.0 to 64
Dec 10 01:36:32 kernel: [ 59.546847] kernel_api.c:251:
odcap0: (240b rev 0) at 0000:01:06.0, irq:209, latency:0
Dec 10 01:36:32 kernel: [ 59.549297] kernel_api.c:267:
odcap0: port_addr:0x0000d300 port_len:0x00000004
Dec 10 01:36:32 kernel: [ 59.551750] kernel_api.c:292:
odcap0: io_mem:0xe002a000 (mmio:0xe8080000, len:0x1000)
Dec 10 01:36:32 kernel: [ 61.224923] ACPI: PCI Interrupt
0000:00:02.0[A] -> GSI 16 (level, low) -> IRQ 177
Dec 10 01:36:32 kernel: [ 61.226432] mtrr:
0xe0000000,0x8000000 overlaps existing 0xe0000000,0x400000
Dec 10 01:36:32 kernel: [ 61.240403] [drm] Initialized i830
1.3.2 20021108 on minor 0: Intel Corporation 82845G/GL[Brookdale-G]/GE
Chipset Integrated Graphics Device
Dec 10 01:36:32 kernel: [ 61.420124] Attached scsi generic
sg0 at scsi0, channel 0, id 0, lun 0, type 0
Dec 10 01:36:32 kernel: [ 61.435944] Attached scsi generic
sg1 at scsi0, channel 0, id 2, lun 0, type 0
Dec 10 01:36:32 kernel: [ 65.656940] e1000: eth0:
e1000_watchdog_task: NIC Link is Up 100 Mbps Full Duplex
Dec 10 01:36:32 kernel: [ 66.997072] lp: driver loaded but no
devices found
Dec 10 01:36:35 kernel: [ 69.496288] apm: BIOS version 1.2
Flags 0x07 (Driver version 1.16ac)
Dec 10 01:36:35 kernel: [ 69.496295] apm: overridden by ACPI.
Dec 10 01:36:35 kernel: [ 69.937106] mtrr:
0xe0000000,0x8000000 overlaps existing 0xe0000000,0x400000
Dec 10 01:36:41 kernel: [ 75.979540] e1000: eth0:
e1000_watchdog_task: NIC Link is Up 100 Mbps Full Duplex
Dec 10 01:36:45 kernel: Kernel logging (proc) stopped.
Dec 10 01:36:45 kernel: Kernel log daemon terminating.
Dec 10 01:36:46 kernel: klogd 1.4.1#10, log source = /proc/kmsg started.
Dec 10 01:36:46 kernel: Inspecting /boot/System.map-2.6.13.2
Dec 10 01:36:46 kernel: Loaded 28981 symbols from
/boot/System.map-2.6.13.2.
Dec 10 01:36:46 kernel: Symbols match kernel version 2.6.13.
Dec 10 01:36:46 kernel: No module symbols loaded - kernel
modules not enabled.
Dec 10 01:36:50 kernel: [ 84.661743] md: bind<sda1>
Dec 10 01:36:50 kernel: [ 84.661911] md: bind<sdb1>
Dec 10 01:36:50 kernel: [ 84.662081] raid1: raid set md0
active with 2 out of 2 mirrors
Dec 10 01:36:50 kernel: [ 84.663584] md: syncing RAID array md0
Dec 10 01:36:50 kernel: [ 84.663789] md: minimum _guaranteed_
reconstruction speed: 1000 KB/sec/disc.
Dec 10 01:36:50 kernel: [ 84.663923] md: using maximum
available idle IO bandwith (but not more than 200000 KB/sec) for
reconstruction.
Dec 10 01:36:50 kernel: [ 84.664062] md: using 128k window,
over a total of 244195904 blocks.
Dec 10 01:36:50 kernel: [ 84.733296] kjournald starting.
Commit interval 5 seconds
Dec 10 01:36:50 kernel: [ 84.740243] EXT3 FS on md0, internal journal
Nov 17 01:36:50 kernel: [ 84.740347] EXT3-fs: mounted
filesystem with ordered data mode.
Yanggun
2005/12/10, Neil Brown <neilb@xxxxxxx>:
> On Saturday December 10, yang.geum.seok@xxxxxxxxx wrote:
> > Hi Brown.
> >
> > I have raid arrays, raid1 called md0. Basically they run fine, but
> > something is switching md0 readonly during write to disk(cp, mv);
> >
> > Is changed by that RAID readonly in what case? let me know, describe
> > number of case?
> >
> > I am very anxious about it very. Please, can you inform to me? Does
> > this patch solve it? Can not you do to do not become by readonly?
>
> You will need to give more details about what is happening. Lots more.
>
> What makes you say the array is 'read-only' - what are the messages
> you get - exactly?
> What filesystem are you using?
> What messages are there in the kernel log ('dmesg' might show these)?
> What does 'cat /proc/mdstat' show?
>
> NeilBrown
>
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