Date: Tue, 10 Apr 2018 15:48:38 -0400 From: Andrew Gallatin <gallatin@cs.duke.edu> To: Andriy Gapon <avg@FreeBSD.org>, Allan Jude <allanjude@freebsd.org>, freebsd-current@freebsd.org Subject: Re: Odd ZFS boot module issue on r332158 Message-ID: <ed5be5d5-9ce0-c8f0-90a3-1ba46dd87637@cs.duke.edu> In-Reply-To: <00fd72d0-cb41-eaf7-347e-6f3423bb6008@FreeBSD.org> References: <b772ee51-b27c-6591-c925-b4abd19678e8@cs.duke.edu> <935ad20e-017c-5c34-61b4-9db58788a663@freebsd.org> <5316e5ea-17a2-2f23-3c88-1671f41b5642@cs.duke.edu> <00fd72d0-cb41-eaf7-347e-6f3423bb6008@FreeBSD.org>
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On 04/10/18 11:25, Andriy Gapon wrote:
> On 10/04/2018 15:27, Andrew Gallatin wrote:
>> Is there something like tools/diag/prtblknos for ZFS?
>
> zdb.
>
> It has a manual page, but in the case like this you typically want to run
> zdb -d[d*] <ZFS filesystem name> <file's inode number>
> Add d-s until you get all the information you want.
>
> It looks like five d-s is needed to get individual blocks reported.
>
Thanks for the instructions!
How do I interpret this output:
<3:45pm>viserion/gallatin:~>ls -li /boot//kernel/vmm.ko
231484 -r-xr-xr-x 1 root wheel 371168 Apr 7 15:05 /boot//kernel/vmm.ko*
<3:46pm>viserion/gallatin:src>sudo zdb -ddddd
tank/ROOT/12.0-CURRENT-20180407.104009 231484
Dataset tank/ROOT/12.0-CURRENT-20180407.104009 [ZPL], ID 260, cr_txg
16768182, 19.9G, 292309 objects, rootbp DVA[0]=<0:4565c5a5000:1000>
DVA[1]=<1:1f1ba52b000:1000> [L0 DMU objset] fletcher4 uncompressed LE
contiguous unique double size=800L/800P birth=16821145L/16821145P
fill=292309 cksum=f1c0930f9:12c49ea8e701:e036d6305e6ca:79eca698e0476d9
Object lvl iblk dblk dsize lsize %full type
231484 2 128K 128K 392K 384K 100.00 ZFS plain file
168 bonus System attributes
dnode flags: USED_BYTES USERUSED_ACCOUNTED
dnode maxblkid: 2
path /boot/kernel/vmm.ko
uid 0
gid 0
atime Sat Apr 7 17:06:06 2018
mtime Sat Apr 7 15:05:48 2018
ctime Sat Apr 7 15:05:48 2018
crtime Sat Apr 7 14:08:21 2018
gen 16768195
mode 100555
size 371168
parent 229378
links 1
pflags 40800000104
Indirect blocks:
0 L1 1:1f01016c000:1000 20000L/1000P F=3
B=16769122/16769122
0 L0 1:1f00f9e3000:20000 20000L/20000P F=1
B=16769122/16769122
20000 L0 1:1f00fa03000:20000 20000L/20000P F=1
B=16769122/16769122
40000 L0 1:1f00fa23000:20000 20000L/20000P F=1
B=16769122/16769122
segment [0000000000000000, 0000000000060000) size 384K
Thanks,
Drew
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