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
fill11 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
*************************************************************************
This message and any attachments (the "message") are confidential,
intended solely for the addressee(s), and may contain legally privileged
information.
Any unauthorised use or dissemination is prohibited. E-mails are susceptible to
alteration.
Neither SOCIETE GENERALE nor any of its subsidiaries or affiliates shall be
liable for the message if altered, changed or
falsified.
************
Ce message et toutes les pieces jointes (ci-apres le "message") sont
confidentiels et susceptibles de contenir des informations couvertes
par le secret professionnel.
Ce message est etabli a l''intention exclusive de ses destinataires.
Toute utilisation ou diffusion non autorisee est interdite.
Tout message electronique est susceptible d''alteration.
La SOCIETE GENERALE et ses filiales declinent toute responsabilite au titre de
ce message s''il a ete altere, deforme ou falsifie.
*************************************************************************
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://mail.opensolaris.org/pipermail/zfs-code/attachments/20081114/e33f2cc4/attachment.html>