Bad Hammer zone statistics

Tomohiro Kusumi kusumi.tomohiro at gmail.com
Thu Jun 2 10:42:20 PDT 2016


1. What's your approximate disk size (or sum of disks) ?

2. If your total block counts from blockmap output matches your disk size,
> zone 0  1095221      0                  18446744073709486080 2.00784e+06
this line from blockmap output shows your layer2 metadata probably had
bad (broken) free_bytes.
Can't tell how it was broken from this output though.

3. What are the 10 errors for checkmap ?
You have output before statistics that indicates those errors.


2016-06-03 2:32 GMT+09:00 Antony T Curtis <atcurtis at gmail.com>:
> Hammer checkmap shows this instead:
>>
>> HAMMER zone statistics
>>
>> zone #  blocks       items              used[B]             used[%]
>>
>> zone 0  0            0                  0                   0
>>
>> zone 1  0            0                  0                   0
>>
>> zone 2  0            0                  0                   0
>>
>> zone 3  128          0                  1073741824          100
>>
>> zone 4  4            0                  33554432            100
>>
>> zone 5  0            0                  0                   0
>>
>> zone 6  0            0                  0                   0
>>
>> zone 7  0            0                  0                   0
>>
>> zone 8  1029         0                  7988092928          92.5418
>>
>> zone 9  1443         0                  2183767648          18.0406
>>
>> zone 10 330734       0                  2911406172336       104.938
>>
>> zone 11 1154         0                  14287486768         147.591
>>
>> zone 12 0            0                  0                   0
>>
>> zone 13 0            0                  0                   0
>>
>> zone 14 0            0                  0                   0
>>
>> zone 15 0            0                  0                   0
>>
>> ----------------------------------------------------------------------
>>
>> total   334492       0                  2936972815936       104.67
>>
>> 0 bad nodes
>>
>> 10 errors
>
>
>
> On 2 June 2016 at 10:14, Antony T Curtis <atcurtis at gmail.com> wrote:
>>
>> This is from a hammer blockmap command.
>>
>> On 2 June 2016 at 10:13, Tomohiro Kusumi <kusumi.tomohiro at gmail.com>
>> wrote:
>>>
>>> From which command is this from ?
>>> It's not hammer show (because hammer show has non 0 items), so I
>>> assume either blockmap or checkmap.
>>>
>>> 2016-06-03 2:05 GMT+09:00 Antony T Curtis <atcurtis at gmail.com>:
>>> > Is there any info as to how to repair a Hammer volume or should I
>>> > simply try
>>> > to backup and restore?
>>> >
>>> >> HAMMER zone statistics
>>> >>
>>> >> zone #  blocks       items              used[B]             used[%]
>>> >>
>>> >> zone 0  1095221      0                  18446744073709486080
>>> >> 2.00784e+06
>>> >>
>>> >> zone 1  0            0                  0                   0
>>> >>
>>> >> zone 2  0            0                  0                   0
>>> >>
>>> >> zone 3  128          0                  1073741824          100
>>> >>
>>> >> zone 4  4            0                  33554432            100
>>> >>
>>> >> zone 5  0            0                  0                   0
>>> >>
>>> >> zone 6  0            0                  0                   0
>>> >>
>>> >> zone 7  0            0                  0                   0
>>> >>
>>> >> zone 8  1029         0                  7986941952          92.5284
>>> >>
>>> >> zone 9  1443         0                  2183756816          18.0405
>>> >>
>>> >> zone 10 330680       0                  2910941826784       104.939
>>> >>
>>> >> zone 11 1154         0                  14287415824         147.59
>>> >>
>>> >> zone 12 0            0                  0                   0
>>> >>
>>> >> zone 13 0            0                  0                   0
>>> >>
>>> >> zone 14 0            0                  0                   0
>>> >>
>>> >> zone 15 143205       0                  1201290608640       100
>>> >>
>>> >> ----------------------------------------------------------------------
>>> >>
>>> >> total   1572864      0                  4137797780736       31.3609
>>> >>
>>> >> 0 bad layer1
>>> >>
>>> >> 0 bad layer2
>>> >
>>> >
>>> >
>>> >
>>> > --
>>> > Antony T Curtis
>>> >
>>
>>
>>
>>
>> --
>> Antony T Curtis
>> 0523 C487 9187 6972 6894
>> AEC7 3087 F819 B477 B687
>
>
>
>
> --
> Antony T Curtis
> 0523 C487 9187 6972 6894
> AEC7 3087 F819 B477 B687



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