RAID i multipath

[Daniel Mróz]

Daniel Mróz napisał(a):
> Mam ja sobie maszynke, ktora jest podlaczona do macierzy przez FC 
> redundantnym linkiem. Zdefiniowalem sobie zatem "macierz" maultipath na 
> dyski /dev/sdc1 i /dev/sdd1 (tak sa widziane oba linki). Wszystko 
> pieknie dziala jesli sie assembluje RAID na dzialajacym systemie. 
> Problem pojawia sie w przypadku startu systemu. Multipath podnosi sie 
> wtedy jedynie z jednym dyskiem i trzeba recznie dodawac druga sciezke. 
> Czy ktos z Was moze spotkal sie z takim problemem?
Zapomnialem o logach. Dmesg zeznaje:


qla2300 0000:00:0e.0: Found an ISP2312, irq 7, iobase 0xd8836000
qla2300 0000:00:0e.0: Configuring PCI space...
qla2300 0000:00:0e.0: Configure NVRAM parameters...
qla2300 0000:00:0e.0: Verifying loaded RISC code...
qla2300 0000:00:0e.0: Waiting for LIP to complete...
qla2300 0000:00:0e.0: LOOP UP detected (2 Gbps).
qla2300 0000:00:0e.0: Topology - (F_Port), Host Loop address 0xffff
scsi1 : qla2xxx
qla2300 0000:00:0e.0:
  QLogic Fibre Channel HBA Driver: 8.00.02b4-k
   QLogic QLA2340 - 133MHz PCI-X to 2Gb FC, Single Channel
   ISP2312: PCI (33 MHz) @ 0000:00:0e.0 hdma-, host#=1, fw=3.03.08 IPX
   Vendor: Raidtec   Model: m766              Rev: 0281
   Type:   Direct-Access                      ANSI SCSI revision: 02
qla2300 0000:00:0e.0: scsi(1:0:0:0): Enabled tagged queuing, queue depth 32.
SCSI device sdc: 249998336 512-byte hdwr sectors (127999 MB)
SCSI device sdc: drive cache: write back
SCSI device sdc: 249998336 512-byte hdwr sectors (127999 MB)
SCSI device sdc: drive cache: write back
  /dev/scsi/host1/bus0/target0/lun0: p1
Attached scsi disk sdc at scsi1, channel 0, id 0, lun 0
   Vendor: Raidtec   Model: m766              Rev: 0281
   Type:   Direct-Access                      ANSI SCSI revision: 02
qla2300 0000:00:0e.0: scsi(1:0:1:0): Enabled tagged queuing, queue depth 32.
SCSI device sdd: 249998336 512-byte hdwr sectors (127999 MB)
Attached scsi disk sdd at scsi1, channel 0, id 1, lun 0

SCSI device sdd: drive cache: write back
SCSI device sdd: 249998336 512-byte hdwr sectors (127999 MB)
SCSI device sdd: drive cache: write back
  /dev/scsi/host1/bus0/target1/lun0: p1
[...]
devfs_mk_dev: could not append to parent for md/2
md: md2 stopped.
md: bind<sdc1>
md: export_rdev(sdd1)
md: multipath personality registered as nr 7
multipath: array md2 active with 1 out of 2 IO paths
[...]
md: bind<sdd1>
MULTIPATH conf printout:
  --- wd:1 rd:1
  disk0, o:1, dev:sdc1
MULTIPATH conf printout:
  --- wd:2 rd:1
  disk0, o:1, dev:sdc1



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