在进行 EC 重新平衡后，可能会报告 OLST ，而磁盘上存在对象块

EC 重新平衡后，可能会报告对象丢失，即使磁盘上的物理位置存在对象块也是如此。

以下文档介绍 了如何调查丢失的对象：

# grep OLST audit.log
2022-02-17T11:00:40.208953 [AUDT:[CBID(UI64):0x8504E653A4550568][UUID(CSTR):"F4A19BD8-8912-4544-B423-26A33E10F7C0"][PATH(CSTR):"ec-bucket/6310eec2-8483-4498-b07a-3bedfce2fff7/0808d4d1_00000000025cfef7_6310eec2-8483-4498-b07a-3bedfce2fff7"][RSLT(FC32):NONE][AVER(UI32):10][ATIM(UI64):1645095640208953][ATYP(FC32):OLST][ANID(UI32):12597448][AMID(FC32):ILMX][ATID(UI64):15044298786699829299]]

# telnet localhost 1402
ade 12448208: / > /proc/OBRP/ObjectByUUID F4A19BD8-8912-4544-B423-26A33E10F7C0

{
   "TYPE": "CTNT",
   "CHND": "1FEC9E09-23CC-4E54-B9E3-099482A8C62A",
   "NAME": "6310eec2-8483-4498-b07a-3bedfce2fff7/0808d4d1_00000000025cfef7_6310eec2-8483-4498-b07a-3bedfce2fff7",
   "CBID": "0x80D54C8D8B62B9D0",
   "PHND": "3058F539-BCE5-11E9-9E53-650300B972EC",
   "PPTH": "ec-bucket",
   "META": {
       "BASE": {
           "ISIA": "10.64.203.173",
           "PHTP": "1",
           "PAWS": "2",
           "ACCT": "12969787153409237262",
           "BKAC": "12969787153409237262",
           "*ctp": "application/x-binary",
        },
       "AWS3": {
           "USDM": "{\"s3b-last-modified\":[\"20190808T092909Z\"],\"sha256\":[\"7f3ceaf54bcff0f63716900f6769b93597aae33e188e88792aa484a93d056dc9\"]}",
           "LOCC": "us-east-1"
        },
       "SEGM": {
           "SHSH": "MD5D 0x075B7CDE47E6140E4F4EC089FC2285A52D3400",
           "CSIZ": "29012864"
        },
       "BYCB": {
           "CTME": "1565603232952248",
           "SHSH": "MD5D 0x1F6225B9C340CDE85ADDBFC5CC818590",
           "CSIZ": "210",
           "BSIZ": "1168",
           "CVER": "196612",
           "CFLG": "256",
           "CTYP": "NONE",
           "CHSH": "SHA1 0x537C146DE8137717EA037AD9DF43779E2E6B63D8",
           "MTME": "1565603232944791",
           "ITME": "1565603232952248"
        },
       "CMSM": {
           "OWNR": "13461290",
           "LATM": "1565603232952248"
        }
    }
}

请注意 CLCO:，缺少 "" （位置）部分。

在 ONTAP 端，这可能表现为针对以下项触发了 ASUP ：
HA Group Notification (WAFL INCONSISTENT USER DATA BLOCK) ALERT

或 ONTAP EMS 日志中出现类似以下内容的错误：
Thu Feb 17 12:00:39 +0100 [nodename: wafl_cbin_cloud_obj_create_pr: wafl.raid.incons.set.err.obj:alert]: Data block at VBN <VBN number> tiered to capacity tier (objid <object id>, slot <slot id>, btuuid <>, seqno <sequence number>) and marked with error (120). Block previously had error (120).

Thu Feb 17 12:08:48 +0100 [nodename: wafl_exempt08: wafl.raid.incons.userdata:error]: WAFL inconsistent: inconsistent user data block at VBN <VBN number> (vvbn:<vvbn number> fbn:<fbn> level:0) in public inode (fileid:<file id> snapid:0 file_type:1 disk_flags:0x8002 error:120 raid_set:1) in volume <volumename>@vserver:<vserver id>.

由于 ONTAP 发现对象存储中缺少块，因此 RAID 会将这些块标记为伪错误（错误： 120 ）。