Date: Tue, 11 Dec 2001 06:07:19 -0000 From: "Mark Hughes" <mh_lists@digitalspy.co.uk> To: <freebsd-questions@FreeBSD.ORG> Subject: Softupdates & fsck Message-ID: <019301c1820a$1b07e2b0$0200a8c0@mark2>
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Guys, We've got softupdates enabled for all the filesystems, aside from /, on a web server. Recently a power outage at our ISP (due to a blow fuse or some such event) caused the power to our server to be cut completely for a brief period, obviously without warning or a graceful shutdown. Now, when we brought it back up, the filesystem was in a little bit of a mess, and we had to go into single user mode and use fsck to fix a number of errors (log below). I was somewhat suprised at this, as I was under the impression that softupdates whole purpose, aside from speed increases, was to never leave the file system in a state where it would need an fsck if the power was cut or the system crashed.... Was I wrong in this assumption? Or is something strange going on... Any ideas as to what has happened gratefully received. mount details: /dev/ad0s1a on / (ufs, local) /dev/ad0s1h on /home (ufs, local, soft-updates) /dev/ad0s1g on /usr (ufs, local, soft-updates) /dev/ad0s1f on /var (ufs, local, soft-updates) /dev/ad0s1e on /var/tmp (ufs, local, soft-updates) procfs on /proc (procfs, local) fsck output from the crash recovery: ** /dev/ad0s1a ** Last Mounted on / ** Root file system ** Phase 1 - Check Blocks and Sizes ad0s1a: hard error reading fsbn 656735 of 328304-328415 (ad0s1 bn 656735; cn 40 tn 224 sn 23) status=59 error=40 CANNOT READ: BLK 328304 CONTINUE? [yn] y THE FOLLOWING DISK SECTORS COULD NOT BE READ: ** Phase 2 - Check Pathnames ** Phase 3 - Check Connectivity ** Phase 4 - Check Reference Counts LINK COUNT FILE I=31257 OWNER=root MODE=100644 SIZE=199 MTIME=Dec 6 12:31 2001 COUNT 2 SHOULD BE 1 ADJUST? [yn] y UNREF FILE I=31260 OWNER=root MODE=100644 SIZE=0 MTIME=Dec 6 12:31 2001 CLEAR? [yn] y ** Phase 5 - Check Cyl groups BLK(S) MISSING IN BIT MAPS SALVAGE? [yn] y 1378 files, 39481 used, 456630 free (438 frags, 57024 blocks, 0.1% fragmentation) ***** FILE SYSTEM MARKED CLEAN ***** ***** FILE SYSTEM WAS MODIFIED ***** ** /dev/ad0s1h ** Last Mounted on /home ** Phase 1 - Check Blocks and Sizes ** Phase 2 - Check Pathnames ** Phase 3 - Check Connectivity ** Phase 4 - Check Reference Counts UNREF FILE I=3166465 OWNER=nobody MODE=100644 SIZE=1295 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y NO lost+found DIRECTORY CREATE? [yn] y UNREF FILE I=3166466 OWNER=nobody MODE=100644 SIZE=1318 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166467 OWNER=nobody MODE=100644 SIZE=1345 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166468 OWNER=nobody MODE=100644 SIZE=1363 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166469 OWNER=nobody MODE=100644 SIZE=1315 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166470 OWNER=nobody MODE=100644 SIZE=1335 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166471 OWNER=nobody MODE=100644 SIZE=1329 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166472 OWNER=nobody MODE=100644 SIZE=1337 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166473 OWNER=nobody MODE=100644 SIZE=1376 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166474 OWNER=nobody MODE=100644 SIZE=1325 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166475 OWNER=nobody MODE=100644 SIZE=1380 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166476 OWNER=nobody MODE=100644 SIZE=1317 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166477 OWNER=nobody MODE=100644 SIZE=1323 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166478 OWNER=nobody MODE=100644 SIZE=1336 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166479 OWNER=nobody MODE=100644 SIZE=1337 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166480 OWNER=nobody MODE=100644 SIZE=1330 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166481 OWNER=nobody MODE=100644 SIZE=1296 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166482 OWNER=nobody MODE=100644 SIZE=1336 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166483 OWNER=nobody MODE=100644 SIZE=1298 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y UNREF FILE I=3166484 OWNER=nobody MODE=100644 SIZE=1354 MTIME=Dec 6 12:20 2001 RECONNECT? [yn] y ** Phase 5 - Check Cyl groups FREE BLK COUNT(S) WRONG IN SUPERBLK SALVAGE? [yn] y SUMMARY INFORMATION BAD SALVAGE? [yn] y 18647 files, 2266425 used, 11706928 free (7744 frags, 1462398 blocks, 0.1% fragmentation) ***** FILE SYSTEM MARKED CLEAN ***** ***** FILE SYSTEM WAS MODIFIED ***** ** /dev/ad0s1g ** Last Mounted on /usr ** Phase 1 - Check Blocks and Sizes ** Phase 2 - Check Pathnames ** Phase 3 - Check Connectivity ** Phase 4 - Check Reference Counts ** Phase 5 - Check Cyl groups 133220 files, 1169269 used, 8755206 free (36302 frags, 1089863 blocks, 0.4% fragmentation) ***** FILE SYSTEM MARKED CLEAN ***** ** /dev/ad0s1f ** Last Mounted on /var ** Phase 1 - Check Blocks and Sizes INCORRECT BLOCK COUNT I=634882 (52080 should be 51968) CORRECT? [yn] y ** Phase 2 - Check Pathnames ** Phase 3 - Check Connectivity ** Phase 4 - Check Reference Counts ** Phase 5 - Check Cyl groups FREE BLK COUNT(S) WRONG IN SUPERBLK SALVAGE? [yn] y SUMMARY INFORMATION BAD SALVAGE? [yn] y BLK(S) MISSING IN BIT MAPS SALVAGE? [yn] y 446 files, 127050 used, 4834675 free (851 frags, 604228 blocks, 0.0% fragmentation) ***** FILE SYSTEM MARKED CLEAN ***** ***** FILE SYSTEM WAS MODIFIED ***** ** /dev/ad0s1e ** Last Mounted on /var/tmp ** Phase 1 - Check Blocks and Sizes ** Phase 1 - Check Blocks and Sizes ** Phase 2 - Check Pathnames ** Phase 3 - Check Connectivity ** Phase 4 - Check Reference Counts ** Phase 5 - Check Cyl groups 2 files, 2 used, 3473100 free (20 frags, 434135 blocks, 0.0% fragmentation) ***** FILE SYSTEM MARKED CLEAN ***** Thanks, Mark -- Mark Hughes - DVD & Film Content Manager, Technical Officer Digital Spy Ltd http://www.digitalspy.co.uk/ Your number one source for digital media and entertainment news! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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