Hexdump 도구를 사용하여, VMFS가 위치한 Disk Device의 On-disk 정보를 수집할 수 있습니다.
1. 우선 Volume의 NAA ID 및 Partition Number 확인
| # vmkfstools -P -v 10 /vmfs/volumes/645679753b6cd94539b8c824_jhaewon_iscsi_0 VMFS-6.82 (Raw Major Version: 24) file system spanning 1 partitions. File system label (if any): 645679753b6cd94539b8c824_jhaewon_iscsi_0 Mode: public ATS-only Capacity 536602476544 (511744 file blocks * 1048576), 127677759488 (121763 blocks) avail, max supported file size 70368744177664 Volume Creation Time: Sat May 6 16:00:55 2023 Files (max/free): 16384/16239 Ptr Blocks (max/free): 0/0 Sub Blocks (max/free): 16384/16113 Secondary Ptr Blocks (max/free): 256/255 File Blocks (overcommit/used/overcommit %): 0/389981/0 Ptr Blocks (overcommit/used/overcommit %): 0/0/0 Sub Blocks (overcommit/used/overcommit %): 0/271/0 Large File Blocks (total/used/file block clusters): 1000/88/860 Volume Metadata size: 1510866944 Disk Block Size: 512/512/0 UUID: 645679b7-86144080-f88d-78ac44128f94 ### <-- !! Logical device: 645679b6-5323cfca-62bf-78ac44128f94 Partitions spanned (on "lvm"): naa.60060160c0304e00a47956645b519394:1 ### <-- !! Unable to connect to vaai-nasd socket [No such file or directory] Is Native Snapshot Capable: NO OBJLIB-LIB: ObjLib cleanup done. WORKER: asyncOps=0 maxActiveOps=0 maxPending=0 maxCompleted=0 |
2. Hexdump를 이용하여, 위에서 확인한 Device에 대해서 수행
## naa.60060160c0304e00a47956645b519394:1 에서 naa.60060160c0304e00a47956645b519394는 Device 명이고, 1은 Partition Number
| # hexdump -C /vmfs/devices/disks/naa.60060160c0304e00a47956645b519394:1 | more 00000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 00100000 0d d0 01 c0 06 00 00 00 15 00 00 00 02 16 00 00 |................| 00100010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 00100020 00 00 00 00 00 00 00 00 00 00 00 00 00 00 60 06 |..............`.| 00100030 01 60 c0 30 4e 00 a4 79 56 64 5b 51 93 94 56 52 |.`.0N..yVd[Q..VR| 00100040 41 49 44 20 00 00 00 00 00 00 00 00 00 00 00 00 |AID ............| 00100050 00 00 00 00 00 00 00 00 00 00 00 02 00 00 00 ec |................| 00100060 86 ff 7c 00 00 00 01 00 00 00 01 00 00 00 00 00 |..|.............| 00100070 00 00 03 00 00 00 00 00 00 00 00 00 10 01 00 00 |................| 00100080 00 00 b7 79 56 64 1c 6d e3 80 d0 2a 78 ac 44 12 |...yVd.m...*x.D.| 00100090 8f 94 c0 9f b8 82 08 fb 05 00 19 d9 b8 82 08 fb |................| 001000a0 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 001000b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| 001000c0 00 00 00 00 00 00 00 00 00 00 00 10 00 00 cf 07 |................| 001000d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| <snip> |
hexdump 도구의 출력 결과는 다음과 같이 구분됩니다.
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