Not an really good subject, I know but that''s kind of what happend. I''m trying to build an backup-solution server, Windows users using OSCAR (which uses rsync) to sync their files to an folder and when complete takes a snapshot. It has worked before but then I turned on the -R switch to rsync and when I then removed the folder with rm -rf it crashed. I didn''t save what the error that the shell gave me but I know is mentioned something about an colon (:). I have no idea how to debug the Solaris kernel, I am both an ZFS and an Solaris newbie, but I''ve managed to gather some information that I''ve seen others pasting: bash-3.00# mdb 0 Loading modules: [ unix krtld genunix specfs dtrace uppc pcplusmp scsi_vhci ufs ip sctp arp usba uhci nca lofs zfs random sppp ptm nfs crypto ipc md cpc fcip fctl fcp logindmux ]> ::statusdebugging crash dump vmcore.0 (32-bit) from unknown operating system: 5.11 snv_48 (i86pc) panic message: ZFS: bad checksum (read on <unknown> off 0: zio dbbf8880 [L1 ZFS plain file] 4000L/400P DVA[0]=<0:6aa000:800> DVA[1]=<0:b80a7000:800> fletcher4 lzjb LE contiguous birth=12316 fill=2 cksum=601eba85e8: dump content: kernel pages only> ::spaADDR STATE NAME da9f5ac0 ACTIVE backup> ::memstatPage Summary Pages MB %Tot ------------ ---------------- ---------------- ---- Kernel 41647 162 32% Anon 56673 221 44% Exec and libs 11331 44 9% Page cache 2963 11 2% Free (cachelist) 11554 45 9% Free (freelist) 4742 18 4% Total 128910 503 Physical 128909 503> $Cdb95bae4 vpanic(f9f95858, d7a91388, d7a913b8, f9f94660, 0, 0) db95bc70 zio_done+0x122(dbbf8880) db95bc8c zio_next_stage+0x66(dbbf8880) db95bcac zio_wait_for_children+0x46(dbbf8880, 11, dbbf8a70) db95bcc0 zio_wait_children_done+0x18(dbbf8880) db95bcd8 zio_next_stage+0x66(dbbf8880) db95bd10 zio_vdev_io_assess+0x11a(dbbf8880) db95bd24 zio_next_stage+0x66(dbbf8880) db95bd64 vdev_mirror_io_done+0x289(dbbf8880) db95bd78 zio_vdev_io_done+0x25() db95bdc8 taskq_thread+0x176(d430a290, 0) db95bdd8 thread_start+8() bash-3.00# zpool status -v pool: backup state: FAULTED status: One or more devices could not be used because the the label is missing or invalid. There are insufficient replicas for the pool to continue functioning. action: Destroy and re-create the pool from a backup source. see: http://www.sun.com/msg/ZFS-8000-5E scrub: none requested config: NAME STATE READ WRITE CKSUM backup UNAVAIL 0 0 0 insufficient replicas raidz1 UNAVAIL 0 0 0 insufficient replicas c0d1 FAULTED 0 0 0 corrupted data c1d0 FAULTED 0 0 0 corrupted data c1d1 ONLINE 0 0 0 The most important stuff from /var/adm/messages: Oct 5 14:02:39 unknown sshd[5421]: [ID 800047 auth.crit] fatal: Read from socket failed: Connection reset by peer Oct 5 14:04:40 unknown unix: [ID 836849 kern.notice] Oct 5 14:04:40 unknown ^Mpanic[cpu0]/thread=db95bde0: Oct 5 14:04:40 unknown genunix: [ID 809409 kern.notice] ZFS: bad checksum (read on <unknown> off 0: zio dbbf8880 [L1 ZFS plain file] 4000L/400P DVA[0]=<0:6aa000:800> DVA[1]=<0:b80a7000:800> fletcher4 lzjb LE contiguous birth=12316 fill=2 cksum=601eba85e8:408ce39c2ee8:172f0d844a20fa:5dfa8a1d4d38722): error 50 Oct 5 14:04:40 unknown unix: [ID 100000 kern.notice] Oct 5 14:04:40 unknown genunix: [ID 353471 kern.notice] db95bc70 zfs:zio_done+122 (dbbf8880) Oct 5 14:04:40 unknown genunix: [ID 353471 kern.notice] db95bc8c zfs:zio_next_stage+66 (dbbf8880) Oct 5 14:04:40 unknown genunix: [ID 353471 kern.notice] db95bcac zfs:zio_wait_for_children+46 (dbbf8880, 11, dbbf8) Oct 5 14:04:40 unknown genunix: [ID 353471 kern.notice] db95bcc0 zfs:zio_wait_children_done+18 (dbbf8880) Oct 5 14:04:40 unknown genunix: [ID 353471 kern.notice] db95bcd8 zfs:zio_next_stage+66 (dbbf8880) Oct 5 14:04:40 unknown genunix: [ID 353471 kern.notice] db95bd10 zfs:zio_vdev_io_assess+11a (dbbf8880) Oct 5 14:04:40 unknown genunix: [ID 353471 kern.notice] db95bd24 zfs:zio_next_stage+66 (dbbf8880) Oct 5 14:04:40 unknown genunix: [ID 353471 kern.notice] db95bd64 zfs:vdev_mirror_io_done+289 (dbbf8880) Oct 5 14:04:40 unknown genunix: [ID 353471 kern.notice] db95bd78 zfs:zio_vdev_io_done+25 (dbbf8880, 0, 0, 0, ) Oct 5 14:04:40 unknown genunix: [ID 353471 kern.notice] db95bdc8 genunix:taskq_thread+176 (d430a290, 0) Oct 5 14:04:40 unknown genunix: [ID 353471 kern.notice] db95bdd8 unix:thread_start+8 () Oct 5 14:04:40 unknown unix: [ID 100000 kern.notice] Oct 5 14:04:40 unknown genunix: [ID 672855 kern.notice] syncing file systems...Oct 5 14:04:40 unknown genunix: [ID 733762 kern.notice] 2 Oct 5 14:04:41 unknown genunix: [ID 733762 kern.notice] 1 Oct 5 14:04:42 unknown genunix: [ID 904073 kern.notice] done Oct 5 14:04:43 unknown genunix: [ID 111219 kern.notice] dumping to /dev/dsk/c0d0s3, offset 144769024, content: kernel Oct 5 14:04:50 unknown genunix: [ID 409368 kern.notice] ^M100% done: 44041 pages dumped, compression ratio 2.85, Oct 5 14:04:50 unknown genunix: [ID 851671 kern.notice] dump succeeded The machine is an Intel P4 laptop (1GB of RAM which Solaris is using 512MB of) running Window SP2 with Solaris 10 Nevada b48 inside VMWare Player. I noticed that almost right away there were some (5-10) CKSUM errors but those might be caused by me pausing the machine turning off the computer and starting over the next day? I''m not on the mailinglist, though I am subscribed to the RSS. Thanks, - Simon This message posted from opensolaris.org