Can you try with "no_path_retry queue" in multipath.conf file for the device. On Mon, 2008-10-20 at 21:29 +1100, Greg Cockburn wrote: > Hi, > > I am trying to get back from a strage situation. > > I have had both paths in a RDAC setup fail and then come back. > > I want to know if there is a way to recover from this without a > reboot. > > (OS = CentOS 5.1) > > multipath -ll > mpath2 (3600a0b800035ebc8000001a94652ae50) dm-4 IBM,1726-4xx FAStT > [size=1.4T][features=0][hwhandler=1 rdac] > \_ round-robin 0 [prio=0][enabled] > \_ 2:0:0:1 sde 8:80 [failed][ghost] > \_ round-robin 0 [prio=100][active] > \_ 1:0:0:1 sdf 8:96 [failed][ready] > > dmsetup info mpath2 > Name: mpath2 > State: ACTIVE > Tables present: LIVE > Open count: 20 > Event number: 3 > Major, minor: 253, 4 > Number of targets: 1 > UUID: mpath-3600a0b800035ebc8000001a94652ae50 > > vgscan > Reading all physical volumes. This may take a while... > /dev/mapper/mpath2: read failed after 0 of 4096 at 1497314033664: > Input/output error > /dev/mapper/mpath2: read failed after 0 of 4096 at 0: Input/output > error > > dmsetup remove --force mpath2 > > > > device-mapper: remove ioctl failed: Device or resource busy > Command failed > > multipath -f mpath2 (just exits with return code 1) > > > dmesg > > <<vendor>> ASC=0xe0 ASCQ=0x6ASC=0xe0 ASCQ=0x6 > > sde: Current: sense key: Recovered Error > <<vendor>> ASC=0xe0 ASCQ=0x6ASC=0xe0 ASCQ=0x6 > > sdf: Current: sense key: Recovered Error > <<vendor>> ASC=0xe0 ASCQ=0x6ASC=0xe0 ASCQ=0x6 > > end_request: I/O error, dev sdf, sector 61118720 > device-mapper: multipath: Failing path 8:80. > end_request: I/O error, dev sdf, sector 599510512 > > device-mapper: ioctl: unable to remove open device mpath2 > device-mapper: ioctl: unable to remove open device mpath2 > > Any advice would be greatly appreciated. > > Thanks, > Greg. > > -- > dm-devel mailing list > dm-devel@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/dm-devel -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
