Dear Pawel, it seems thet gmirror is entering the endless loop if one inserted disk with previously configured mirror part in syncronyzing state: root@moose:/media/sata# gmirror list m0g Geom name: m0g State: STARTING Components: 2 Balance: split Slice: 4096 Flags: NONE GenID: 0 SyncID: 0 ID: 2992987948 Consumers: 1. Name: ad22g Mediasize: 272441875968 (254G) Sectorsize: 512 Mode: r1w1e1 State: NEW Priority: 0 Flags: SYNCHRONIZING GenID: 0 SyncID: 2 ID: 3619189671 root@moose:/media/sata# gmirror stop m0g ; gmirror clear ad22g Can't clear metadata on ad22g: Operation not permitted. gmirror: Not fully done. from kernel log: Mar 10 21:04:31 <kern.crit> moose kernel: GEOM_MIRROR: Force device m0g start due to timeout. Mar 10 21:04:31 <kern.crit> moose kernel: GEOM_MIRROR: Device m0g destroyed. Mar 10 21:04:35 <kern.crit> moose kernel: GEOM_MIRROR: Force device m0g start due to timeout. Mar 10 21:04:35 <kern.crit> moose kernel: GEOM_MIRROR: Device m0g destroyed. Mar 10 21:04:39 <kern.crit> moose kernel: GEOM_MIRROR: Force device m0g start due to timeout. Mar 10 21:04:39 <kern.crit> moose kernel: GEOM_MIRROR: Device m0g destroyed. ... In my case, a workaround was: detach broken disk, configure mirror with the same name (I did it over md), then gmirror clear ad22g -- but I suppose this situation should be somehow detected and loop broken. Thanks! -- Sincerely, D.Marck [DM5020, MCK-RIPE, DM3-RIPN] [ FreeBSD committer: marck@FreeBSD.org ] ------------------------------------------------------------------------ *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru *** ------------------------------------------------------------------------