Hi Gurus,
a question about zdb -vvvd <pool> output
when running this command, I can see several datasets in the output,
please find my question in the comment of the output
Dataset mos [META], ID 0, cr_txg 4, 84.5K, 38 objects, rootbp [L0 DMU
objset] 40 <------------------------------ MOS
0L/200P DVA[0]=<0:aac00:200> DVA[1]=<1:9f000:200> DVA[2]=<0:1803a800:200>
fletch
er4 lzjb BE contiguous birth=377051 fill=38
cksum=d1f35ac39:4d9c1ef4906:eba8c1b5
242f:1e96f5d3fbda5c
Object lvl iblk dblk lsize asize type
0 1 16K 16K 32K 12.0K DMU dnode
Object lvl iblk dblk lsize asize type
1 1 16K 512 512 1K object directory
microzap: 512 bytes, 5 entries
deflate = 1
root_dataset = 2
sync_bplist = 12
config = 11
history = 13
Object lvl iblk dblk lsize asize type
2 1 16K 512 512 0 DSL directory
256 bonus DSL directory
creation_time = Thu Oct 23 09:51:46 2008
head_dataset_obj = 5 <-----------------------------root
dataset object number
parent_dir_obj = 0
clone_parent_obj = 0
child_dir_zapobj = 4
used_bytes = 192K
compressed_bytes = 81.0K
uncompressed_bytes = 81.0K
quota = 0
reserved = 0
props_zapobj = 3
Object lvl iblk dblk lsize asize type
3 1 16K 16K 32K 7.00K DSL props
Fat ZAP stats:
Pointer table:
1024 elements
zt_blk: 0
zt_numblks: 0
zt_shift: 10
zt_blks_copied: 0
zt_nextblk: 0
ZAP entries: 1
Leaf blocks: 1
Total blocks: 2
zap_block_type: 0x8000000000000001
zap_magic: 0x2f52ab2ab
zap_salt: 0x252eaf47
Leafs with 2^n pointers:
9: 1 *
Blocks with n*5 entries:
0: 1 *
Blocks n/10 full:
1: 1 *
Entries with n chunks:
3: 1 *
Buckets with n entries:
0: 511 ****************************************
1: 1 *
mountpoint = /unxtmpzfs3/mnt1
Object lvl iblk dblk lsize asize type
4 1 16K 512 512 1K DSL directory child map
microzap: 512 bytes, 4 entries
mnt2 = 19
$MOS = 8
mnt4 = 32
mnt3 = 25
Object lvl iblk dblk lsize asize type
<-----------------------------------------------------------------------
root dataset
5 1 16K 512 512 0 DSL dataset
320 bonus DSL dataset
dataset_obj = 2
prev_snap_obj = 0
prev_snap_txg = 0
next_snap_obj = 0
snapnames_zapobj = 6
num_children = 0
creation_time = Thu Oct 23 09:51:46 2008
creation_txg = 4
deadlist_obj = 7
used_bytes = 32K
compressed_bytes = 13.0K
uncompressed_bytes = 13.0K
unique = 32K
fsid_guid = 5882194454909165
guid = 6756432350065311698
flags = 0
bp = [L0 DMU objset] 400L/200P DVA[0]=<0:a8600:200>
DVA[1]=<1:9c
a00:200> DVA[2]=<0:18038200:200> fletcher4 lzjb BE contiguous birth=377051
fill=
11 cksum=ba077c4b6:4d97f4c2507:106b010a6d788:25968ed8b5b6d6
<..>
Dataset unxtmpzfs3 [ZPL], ID 5, cr_txg 4, 32K, 11 objects, rootbp [L0 DMU
objset] 400L/200P DVA[0]=<0:a8600:200> DVA[1]=<1:9ca00:200>
DVA[2]=<0:18038200:200> fletcher4 lzjb BE contiguous birth=377051 fill=11
cksum=ba077c4b6:4d97f4c2507:106b010a6d788:25968ed8b5b6d6
<------------------------------------------------------ How can it get the
adress of this dataset (it is the root one) ???
Object lvl iblk dblk lsize asize type
0 7 16K 16K 16K 22.0K DMU dnode
<..>
Cheers
C Rouhassia
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