[zfs-discuss] Another zfs issue
Hi all I have this pool that has been suffering from some bad backplanes etc. Currently it's showing up ok, but after a resilver, a spare is stuck. raidz2-5 ONLINE 0 0 4 c4t1d0 ONLINE 0 0 0 c4t2d0 ONLINE 1 0 0 c4t3d0 ONLINE 0 0 0 c4t4d0 ONLINE 0 0 0 spare-4ONLINE 0 0 0 c4t5d0 ONLINE 0 0 0 c4t44d0 ONLINE 0 0 0 c4t6d0 ONLINE 0 0 0 c4t7d0 ONLINE 0 0 0 So, the VDEV seems ok, the pool reports two data errors, which is sad, but not a showstopper, however, trying to detach the spare from that vdev doesn's seem to easy roy@dmz-backup:~$ sudo zpool detach dbpool c4t44d0 cannot detach c4t44d0: no valid replicas iostat -en shows some issues with drives in that pool, but none on the two in the spare mirror 0 0 0 0 c4t1d0 0 82 131 213 c4t2d0 0 0 0 0 c4t3d0 0 0 0 0 c4t4d0 0 0 0 0 c4t5d0 0 0 0 0 c4t6d0 0 0 0 0 c4t7d0 0 0 0 0 c4t44d0 Is there a good explaination why I can't detach this mirror from the VDEV? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Another zfs issue
Yeah, this is a known problem. The DTL on the toplevel shows an outage, and is preventing the removal of the spare even though removing the spare won't make the outage worse. Unfortunately, for opensolaris anyway, there is no workaround. You could try doing a full scrub, replacing any disks that show errors, and waiting for the resilver to complete. That may clean up the DTL enough to detach the spare. On 1 Jun 2011, at 20:20, Roy Sigurd Karlsbakk wrote: Hi all I have this pool that has been suffering from some bad backplanes etc. Currently it's showing up ok, but after a resilver, a spare is stuck. raidz2-5 ONLINE 0 0 4 c4t1d0 ONLINE 0 0 0 c4t2d0 ONLINE 1 0 0 c4t3d0 ONLINE 0 0 0 c4t4d0 ONLINE 0 0 0 spare-4ONLINE 0 0 0 c4t5d0 ONLINE 0 0 0 c4t44d0 ONLINE 0 0 0 c4t6d0 ONLINE 0 0 0 c4t7d0 ONLINE 0 0 0 So, the VDEV seems ok, the pool reports two data errors, which is sad, but not a showstopper, however, trying to detach the spare from that vdev doesn's seem to easy roy@dmz-backup:~$ sudo zpool detach dbpool c4t44d0 cannot detach c4t44d0: no valid replicas iostat -en shows some issues with drives in that pool, but none on the two in the spare mirror 0 0 0 0 c4t1d0 0 82 131 213 c4t2d0 0 0 0 0 c4t3d0 0 0 0 0 c4t4d0 0 0 0 0 c4t5d0 0 0 0 0 c4t6d0 0 0 0 0 c4t7d0 0 0 0 0 c4t44d0 Is there a good explaination why I can't detach this mirror from the VDEV? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Another zfs issue
Yeah, this is a known problem. The DTL on the toplevel shows an outage, and is preventing the removal of the spare even though removing the spare won't make the outage worse. Unfortunately, for opensolaris anyway, there is no workaround. You could try doing a full scrub, replacing any disks that show errors, and waiting for the resilver to complete. That may clean up the DTL enough to detach the spare. I'm not familiar with the DTL term, but does this mean, in English, that if data errors are found and are not correctable, they will stay? If so, is there another workaround than upgrading to something? Is this bug still in s11ex? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk. ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
