| Hi. I'm in the process of writing an introductory paper on ZFS. The paper is meant to be something that could be given to a systems admin at a site to introduce ZFS and document common procedures for using ZFS. In the paper, I want to document the method for identifying which file has a checksum error. In previous discussions on this alias, I've used the following method: zpool status -v pool: local state: ONLINE status: One or more devices has experienced an error resulting in data corruption. Applications may be affected. action: Restore the file in question if possible. Otherwise restore the entire pool from backup. scrub: scrub completed with 4 errors on Wed Jul 12 20:38:03 2006 config: NAME STATE READ WRITE CKSUM local ONLINE 0 0 8 c0d0s7 ONLINE 0 0 4 c1d0s2 ONLINE 0 0 4 errors: The following persistent errors have been detected: DATASET OBJECT RANGE local/music 31018 6291456-6422528 local/music 37932 1572864-1703936 local/music 12895 4063232-4194304 local/music 7782 3145728-3276800 zdb -vvv local/music 31018 Dataset local/music [ZPL], ID 21, cr_txg 286098, last_txg 569229, 266G, 47341 objects, rootbp [L0 DMU objset] 400L/200P DVA[0]=<1:1e60334600:200> DVA[1]=<0:1f34545e00:200> DVA[2]=<1:209bb8a00:200> fletcher4 lzjb LE contiguous birth=569229 fill=47341 cksum=bfbec0b7e:4cabe29d1ca:f8ffe68a911f:22341ff0761b57 Object lvl iblk dblk lsize asize type 31018 2 16K 128K 7.50M 7.51M ZFS plain file 264 bonus ZFS znode path /Mos Def/Black on Both Sides/03 Love.mp3 atime Tue Jul 4 01:26:27 2006 mtime Sat Apr 15 20:17:19 2006 ctime Tue Jul 4 01:26:27 2006 crtime Tue Jul 4 01:26:26 2006 gen 328624 mode 100755 size 7762952 parent 26652 links 1 xattr 0 rdev 0x0000000000000000 The above is a real error that I've encountered on a snv_41 machine that I use to store a backup of my music collection. It's a x86 (32-bit) machine that has either bad disks, or, a bad controller. My question: Is the above an interface that should be documented as the method for identifying what file has an error? Or is there some other interface that is either better documented or better supported? I don't want to put unstable interfaces in the document if I can avoid it. Thanks! ----- Gregory Shaw, IT Architect Phone: (303) 673-8273 Fax: (303) 673-8273 ITCTO Group, Sun Microsystems Inc. 1 StorageTek Drive MS 4382 [EMAIL PROTECTED] (work) Louisville, CO 80028-4382 [EMAIL PROTECTED] (home) "When Microsoft writes an application for Linux, I've Won." - Linus Torvalds |
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