Hello Robert, Thursday, July 6, 2006, 1:49:34 AM, you wrote:
RM> Hello Eric, RM> Monday, June 12, 2006, 11:21:24 PM, you wrote: ES>> I reproduced this pretty easily on a lab machine. I've filed: ES>> 6437568 ditto block repair is incorrectly propagated to root vdev ES>> To track this issue. Keep in mind that you do have a flakey ES>> controller/lun/something. If this had been a user data block, your data ES>> would be gone. RM> I belive that something else is also happening here. RM> I can see CKSUM errors on two different servers (v240 and T2000) all RM> on non-redundant zpools and all the times it looks like ditto block RM> helped - hey, it's just improbable. RM> And while on T2000 from fmdump -ev I get: RM> Jul 05 19:59:43.8786 ereport.io.fire.pec.btp 0x14e4b8015f612002 RM> Jul 05 20:05:28.9165 ereport.io.fire.pec.re 0x14e5f951ce12b002 RM> Jul 05 20:05:58.5381 ereport.io.fire.pec.re 0x14e614e78f4c9002 RM> Jul 05 20:05:58.5389 ereport.io.fire.pec.btp 0x14e614e7b6ddf002 RM> Jul 05 23:34:11.1960 ereport.io.fire.pec.re 0x1513869a6f7a6002 RM> Jul 05 23:34:11.1967 ereport.io.fire.pec.btp 0x1513869a95196002 RM> Jul 06 00:09:17.1845 ereport.io.fire.pec.re 0x151b2fca4c988002 RM> Jul 06 00:09:17.1852 ereport.io.fire.pec.btp 0x151b2fca72e6b002 RM> on v240 fmdump shows nothing for over a month and I'm sure I did zpool RM> clear on that server later. RM> v240: RM> bash-3.00# zpool status nfs-s5-s7 RM> pool: nfs-s5-s7 RM> state: ONLINE RM> status: One or more devices has experienced an unrecoverable error. An RM> attempt was made to correct the error. Applications are unaffected. RM> action: Determine if the device needs to be replaced, and clear the errors RM> using 'zpool clear' or replace the device with 'zpool replace'. RM> see: http://www.sun.com/msg/ZFS-8000-9P RM> scrub: none requested RM> config: RM> NAME STATE READ WRITE CKSUM RM> nfs-s5-s7 ONLINE 0 0 167 RM> c4t600C0FF00000000009258F28706F5201d0 ONLINE 0 0 167 RM> errors: No known data errors RM> bash-3.00# RM> bash-3.00# zpool clear nfs-s5-s7 RM> bash-3.00# zpool status nfs-s5-s7 RM> pool: nfs-s5-s7 RM> state: ONLINE RM> scrub: none requested RM> config: RM> NAME STATE READ WRITE CKSUM RM> nfs-s5-s7 ONLINE 0 0 0 RM> c4t600C0FF00000000009258F28706F5201d0 ONLINE 0 0 0 RM> errors: No known data errors RM> bash-3.00# RM> bash-3.00# zpool scrub nfs-s5-s7 RM> bash-3.00# zpool status nfs-s5-s7 RM> pool: nfs-s5-s7 RM> state: ONLINE RM> scrub: scrub in progress, 0.01% done, 269h24m to go RM> config: RM> NAME STATE READ WRITE CKSUM RM> nfs-s5-s7 ONLINE 0 0 0 RM> c4t600C0FF00000000009258F28706F5201d0 ONLINE 0 0 0 RM> errors: No known data errors RM> bash-3.00# RM> We'll see the result - I hope I would have not to stop it in the RM> morning. Anyway I have a feeling that nothing will be reported. RM> ps. I've got several similar pools on those two servers and I see RM> CKSUM errors on all of them with the same result - it's almost RM> impossible. ok, it took several days actually to complete scrub. During scrub I saw some CKSUM errors already and now again there are many of them, however scrub itself reported no errors at all. bash-3.00# zpool status nfs-s5-s7 pool: nfs-s5-s7 state: ONLINE status: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffected. action: Determine if the device needs to be replaced, and clear the errors using 'zpool clear' or replace the device with 'zpool replace'. see: http://www.sun.com/msg/ZFS-8000-9P scrub: scrub completed with 0 errors on Sun Jul 9 02:56:19 2006 config: NAME STATE READ WRITE CKSUM nfs-s5-s7 ONLINE 0 0 18 c4t600C0FF00000000009258F28706F5201d0 ONLINE 0 0 18 errors: No known data errors bash-3.00# -- Best regards, Robert mailto:[EMAIL PROTECTED] http://milek.blogspot.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
