Administrace komentářů

Možná je to OK (nemám s RAID žádné zkušenosti), ale mám tento problém: Souborový server na Ubuntu, jeden malý disk jako systémový a dva velké jako /HOME v RAIDu. Z důvodu toho, že jeden disk nebyl funkční hned po nákupu, byl server provozován jen s jedním velkým diskem, na kterém už je dost dat. Po obdržení disku z reklamace vytvořen SW RAID a tento disk přidán do pole ke stávajícímu disku z daty (zhruba dle článku zde: http://www.linuxsoft.cz/article.php?id_article=723 ). Proběhla synchronizace, vše se zdá OK. Chtěl jsem ověřit činost RAIDU, tak sem po vypnutí PC jeden z disků odpojil. Po zapnutí PC naběhne, ale disk se nepřimountuje, /HOME je prázdný. Domnívám se, že by by zbývající disk měl normálně bežet aby v případě poruchy jednoho z disků byl systém funkční do jeho výměny. Je to tak nebo se pletu - pokud ano, kde může být chyba? Přikládám výpisy:

dmesg (část týkající se disků):

38.180077 md: linear personality registered for level -1

38.193283 md: multipath personality registered for level -4

38.206109 md: raid0 personality registered for level 0

38.221012 md: raid1 personality registered for level 1

38.233498 raid5: automatically using best checksumming function: pIII_sse

38.282706 pIII_sse : 1722.000 MB/sec

38.282713 raid5: using function: pIII_sse (1722.000 MB/sec)

38.452591 raid6: int32x1 263 MB/s

38.622638 raid6: int32x2 302 MB/s

38.792320 raid6: int32x4 231 MB/s

38.962301 raid6: int32x8 215 MB/s

39.132070 raid6: mmxx1 780 MB/s

39.301943 raid6: mmxx2 951 MB/s

39.471887 raid6: sse1x1 593 MB/s

39.641661 raid6: sse1x2 907 MB/s

39.641668 raid6: using algorithm sse1x2 (907 MB/s)

39.641679 md: raid6 personality registered for level 6

39.641684 md: raid5 personality registered for level 5

39.641690 md: raid4 personality registered for level 4

39.708654 md: raid10 personality registered for level 10

41.601780 SCSI subsystem initialized

41.625633 libata version 2.21 loaded.

41.632574 ata_piix 0000:00:07.1: version 2.11

41.632928 scsi0 : ata_piix

41.633098 scsi1 : ata_piix

41.633202 ata1: PATA max UDMA/33 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x0001f000 irq 14

41.633214 ata2: PATA max UDMA/33 cmd 0x00010170 ctl 0x00010376 bmdma 0x0001f008 irq 15

41.714537 usbcore: registered new interface driver usbfs

41.714624 usbcore: registered new interface driver hub

41.714710 usbcore: registered new device driver usb

41.718433 USB Universal Host Controller Interface driver v3.0

41.804442 Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2

41.804458 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx

41.810603 ata1.00: ATA-7: Hitachi HDT725050VLAT80, V56OA4NA, max UDMA/133

41.810617 ata1.00: 976773168 sectors, multi 0: LBA48

41.850566 ata1.00: configured for UDMA/33

42.080791 ata2.00: ATA-7: ST3500630A, 3.AAF, max UDMA/100

42.080805 ata2.00: 976773168 sectors, multi 0: LBA48

42.172258 ata2.00: configured for UDMA/33

42.175401 scsi 0:0:0:0: Direct-Access ATA Hitachi HDT72505 V56O PQ: 0 ANSI: 5

42.176780 scsi 1:0:0:0: Direct-Access ATA ST3500630A 3.AA PQ: 0 ANSI: 5

42.187412 ACPI: PCI Interrupt Link LNKD enabled at IRQ 11

42.187426 PCI: setting IRQ 11 as level-triggered

42.187433 ACPI: PCI Interrupt 0000:00:07.2D -> Link LNKD -> GSI 11 (level, low) -> IRQ 11

42.187459 uhci_hcd 0000:00:07.2: UHCI Host Controller

42.187828 uhci_hcd 0000:00:07.2: new USB bus registered, assigned bus number 1

42.187876 uhci_hcd 0000:00:07.2: irq 11, io base 0x0000d000

42.188273 usb usb1: configuration #1 chosen from 1 choice

42.188368 hub 1-0:1.0: USB hub found

42.188395 hub 1-0:1.0: 2 ports detected

42.223689 sd 0:0:0:0: sda 976773168 512-byte hardware sectors (500108 MB)

42.223770 sd 0:0:0:0: sda Write Protect is off

42.223779 sd 0:0:0:0: sda Mode Sense: 00 3a 00 00

42.223822 sd 0:0:0:0: sda Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

42.224007 sd 0:0:0:0: sda 976773168 512-byte hardware sectors (500108 MB)

42.224034 sd 0:0:0:0: sda Write Protect is off

42.224041 sd 0:0:0:0: sda Mode Sense: 00 3a 00 00

42.224081 sd 0:0:0:0: sda Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

42.224091 sda: sda1

42.237527 sd 0:0:0:0: sda Attached 37.050284 md: linear personality registered for level -1

37.063158 md: multipath personality registered for level -4

37.075622 md: raid0 personality registered for level 0

37.090497 md: raid1 personality registered for level 1

37.102611 raid5: automatically using best checksumming function: pIII_sse

37.143492 pIII_sse : 1721.600 MB/sec

37.143498 raid5: using function: pIII_sse (1721.600 MB/sec)

37.313407 raid6: int32x1 263 MB/s

37.483418 raid6: int32x2 302 MB/s

37.653116 raid6: int32x4 231 MB/s

37.823098 raid6: int32x8 215 MB/s

37.992919 raid6: mmxx1 780 MB/s

38.162728 raid6: mmxx2 951 MB/s

38.332621 raid6: sse1x1 632 MB/s

38.502456 raid6: sse1x2 959 MB/s

38.502463 raid6: using algorithm sse1x2 (959 MB/s)

38.502474 md: raid6 personality registered for level 6

38.502479 md: raid5 personality registered for level 5

38.502485 md: raid4 personality registered for level 4

38.569463 md: raid10 personality registered for level 10

40.506828 SCSI subsystem initialized

40.530621 libata version 2.21 loaded.

40.537512 ata_piix 0000:00:07.1: version 2.11

40.537859 scsi0 : ata_piix

40.538030 scsi1 : ata_piix

40.538134 ata1: PATA max UDMA/33 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x0001f000 irq 14

40.538145 ata2: PATA max UDMA/33 cmd 0x00010170 ctl 0x00010376 bmdma 0x0001f008 irq 15

40.605379 usbcore: registered new interface driver usbfs

40.605467 usbcore: registered new interface driver hub

40.605553 usbcore: registered new device driver usb

40.609326 USB Universal Host Controller Interface driver v3.0

40.821424 Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2

40.821440 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx

40.970823 ata2.00: ATA-7: ST3500630A, 3.AAF, max UDMA/100

40.970836 ata2.00: 976773168 sectors, multi 0: LBA48

41.062263 ata2.00: configured for UDMA/33

41.062602 scsi 1:0:0:0: Direct-Access ATA ST3500630A 3.AA PQ: 0 ANSI: 5

41.073502 ACPI: PCI Interrupt Link LNKD enabled at IRQ 11

41.073516 PCI: setting IRQ 11 as level-triggered

41.073523 ACPI: PCI Interrupt 0000:00:07.2D -> Link LNKD -> GSI 11 (level, low) -> IRQ 11

41.073550 uhci_hcd 0000:00:07.2: UHCI Host Controller

41.073922 uhci_hcd 0000:00:07.2: new USB bus registered, assigned bus number 1

41.073974 uhci_hcd 0000:00:07.2: irq 11, io base 0x0000d000

41.074345 usb usb1: configuration #1 chosen from 1 choice

41.074451 hub 1-0:1.0: USB hub found

41.074477 hub 1-0:1.0: 2 ports detected

41.097962 sd 1:0:0:0: sda 976773168 512-byte hardware sectors (500108 MB)

41.098001 sd 1:0:0:0: sda Write Protect is off

41.098009 sd 1:0:0:0: sda Mode Sense: 00 3a 00 00

41.098055 sd 1:0:0:0: sda Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

41.098205 sd 1:0:0:0: sda 976773168 512-byte hardware sectors (500108 MB)

41.098233 sd 1:0:0:0: sda Write Protect is off

41.098240 sd 1:0:0:0: sda Mode Sense: 00 3a 00 00

41.098283 sd 1:0:0:0: sda Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

41.098293 sda: sda1

41.118726 sd 1:0:0:0: sda Attached SCSI disk

41.136183 sd 1:0:0:0: Attached scsi generic sg0 type 0

41.181611 ACPI: PCI Interrupt 0000:00:14.0A -> Link LNKD -> GSI 11 (level, low) -> IRQ 11

SCSI disk

42.239180 sd 1:0:0:0: sdb 976773168 512-byte hardware sectors (500108 MB)

42.239216 sd 1:0:0:0: sdb Write Protect is off

42.239224 sd 1:0:0:0: sdb Mode Sense: 00 3a 00 00

42.239265 sd 1:0:0:0: sdb Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

42.239428 sd 1:0:0:0: sdb 976773168 512-byte hardware sectors (500108 MB)

42.239455 sd 1:0:0:0: sdb Write Protect is off

42.239462 sd 1:0:0:0: sdb Mode Sense: 00 3a 00 00

42.239502 sd 1:0:0:0: sdb Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

42.239512 sdb: sdb1

42.261919 sd 1:0:0:0: sdb Attached SCSI disk

42.281350 sd 0:0:0:0: Attached scsi generic sg0 type 0

42.281406 sd 1:0:0:0: Attached scsi generic sg1 type 0

fdisk -l

Disk /dev/sda: 500.1 GB, 500107862016 bytes

255 heads, 63 sectors/track, 60801 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk identifier: 0x0880a7af

Device Boot Start End Blocks Id System

/dev/sda1 1 60801 488384001 fd Linux raid autodetect

Disk /dev/sdb: 500.1 GB, 500107862016 bytes

255 heads, 63 sectors/track, 60801 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk identifier: 0x00000000

Device Boot Start End Blocks Id System

/dev/sdb1 1 60801 488384001 fd Linux raid autodetect

Disk /dev/hda: 10.0 GB, 10005037056 bytes

255 heads, 63 sectors/track, 1216 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk identifier: 0x0008bc41

Device Boot Start End Blocks Id System

/dev/hda1 * 1 1159 9309636 83 Linux

/dev/hda2 1160 1216 457852+ 5 Extended

/dev/hda5 1160 1216 457821 82 Linux swap / Solaris

Disk /dev/md0: 500.1 GB, 500105150464 bytes

2 heads, 4 sectors/track, 122095984 cylinders

Units = cylinders of 8 * 512 = 4096 bytes

Disk identifier: 0x00000000

mdadm --detail /dev/md0

/dev/md0:

Version : 00.90.03

Creation Time : Thu Dec 6 07:46:47 2007

Raid Level : raid1

Array Size : 488383936 (465.76 GiB 500.11 GB)

Used Dev Size : 488383936 (465.76 GiB 500.11 GB)

Raid Devices : 2

Total Devices : 2

Preferred Minor : 0

Persistence : Superblock is persistent

Update Time : Fri Dec 7 08:01:23 2007

State : clean

Active Devices : 2

Working Devices : 2

Failed Devices : 0

Spare Devices : 0

UUID : 1b3e3b2d:3d3894a0:5ec6a119:90cc910a (local to host SERVER000GOA040)

Events : 0.1490

Number Major Minor RaidDevice State

0 8 17 0 active sync /dev/sdb1

1 8 1 1 active sync /dev/sda1

/proc/mdstat

Personalities : linear multipath raid0 raid1 raid6 raid5 raid4 raid10

md0 : active raid1 sdb10 sda11

488383936 blocks 2/2 UU

unused devices: <none>

/proc/partitions

major minor #blocks name

8 0 488386584 sda

8 1 488384001 sda1

8 16 488386584 sdb

8 17 488384001 sdb1

3 0 9770544 hda

3 1 9309636 hda1

3 2 1 hda2

3 5 457821 hda5

9 0 488383936 md0

dmesg při startu s jedním odpojeným diskem:

37.050284 md: linear personality registered for level -1

37.063158 md: multipath personality registered for level -4

37.075622 md: raid0 personality registered for level 0

37.090497 md: raid1 personality registered for level 1

37.102611 raid5: automatically using best checksumming function: pIII_sse

37.143492 pIII_sse : 1721.600 MB/sec

37.143498 raid5: using function: pIII_sse (1721.600 MB/sec)

37.313407 raid6: int32x1 263 MB/s

37.483418 raid6: int32x2 302 MB/s

37.653116 raid6: int32x4 231 MB/s

37.823098 raid6: int32x8 215 MB/s

37.992919 raid6: mmxx1 780 MB/s

38.162728 raid6: mmxx2 951 MB/s

38.332621 raid6: sse1x1 632 MB/s

38.502456 raid6: sse1x2 959 MB/s

38.502463 raid6: using algorithm sse1x2 (959 MB/s)

38.502474 md: raid6 personality registered for level 6

38.502479 md: raid5 personality registered for level 5

38.502485 md: raid4 personality registered for level 4

38.569463 md: raid10 personality registered for level 10

40.506828 SCSI subsystem initialized

40.530621 libata version 2.21 loaded.

40.537512 ata_piix 0000:00:07.1: version 2.11

40.537859 scsi0 : ata_piix

40.538030 scsi1 : ata_piix

40.538134 ata1: PATA max UDMA/33 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x0001f000 irq 14

40.538145 ata2: PATA max UDMA/33 cmd 0x00010170 ctl 0x00010376 bmdma 0x0001f008 irq 15

40.605379 usbcore: registered new interface driver usbfs

40.605467 usbcore: registered new interface driver hub

40.605553 usbcore: registered new device driver usb

40.609326 USB Universal Host Controller Interface driver v3.0

40.821424 Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2

40.821440 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx

40.970823 ata2.00: ATA-7: ST3500630A, 3.AAF, max UDMA/100

40.970836 ata2.00: 976773168 sectors, multi 0: LBA48

41.062263 ata2.00: configured for UDMA/33

41.062602 scsi 1:0:0:0: Direct-Access ATA ST3500630A 3.AA PQ: 0 ANSI: 5

41.073502 ACPI: PCI Interrupt Link LNKD enabled at IRQ 11

41.073516 PCI: setting IRQ 11 as level-triggered

41.073523 ACPI: PCI Interrupt 0000:00:07.2D -> Link LNKD -> GSI 11 (level, low) -> IRQ 11

41.073550 uhci_hcd 0000:00:07.2: UHCI Host Controller

41.073922 uhci_hcd 0000:00:07.2: new USB bus registered, assigned bus number 1

41.073974 uhci_hcd 0000:00:07.2: irq 11, io base 0x0000d000

41.074345 usb usb1: configuration #1 chosen from 1 choice

41.074451 hub 1-0:1.0: USB hub found

41.074477 hub 1-0:1.0: 2 ports detected

41.097962 sd 1:0:0:0: sda 976773168 512-byte hardware sectors (500108 MB)

41.098001 sd 1:0:0:0: sda Write Protect is off

41.098009 sd 1:0:0:0: sda Mode Sense: 00 3a 00 00

41.098055 sd 1:0:0:0: sda Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

41.098205 sd 1:0:0:0: sda 976773168 512-byte hardware sectors (500108 MB)

41.098233 sd 1:0:0:0: sda Write Protect is off

41.098240 sd 1:0:0:0: sda Mode Sense: 00 3a 00 00

41.098283 sd 1:0:0:0: sda Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

41.098293 sda: sda1

41.118726 sd 1:0:0:0: sda Attached SCSI disk

41.136183 sd 1:0:0:0: Attached scsi generic sg0 type 0

41.181611 ACPI: PCI Interrupt 0000:00:14.0A -> Link LNKD -> GSI 11 (level, low) -> IRQ 11

Disky v RAIDU jsou stejně velké, ale různého výrobce, PATA. každý na samostatném kabelu/kanálu na řadiči na MB - stará deska , BX chipset. Systémový disk je zvlášť v PCI řadiči/kartě. Děkuji předem za pomoc.