[linux-lvm] Ambiguous mirror log option

[linux-lvm] Ambiguous mirror log option

[brem belguebli]

[-- Attachment #1: Type: text/plain, Size: 672 bytes --]

Hi,

I've been struggling with lvcreate for more than  a hour to create a
mirror'ed LV with on disk log, with no success (I'm ashamed! :-| )


Here's what I typed on a VG (with 2 X 8678 4MB extents free), it's not a
free space issue...

lvcreate -m1 --mirrorlog disk  -L 9G -n lvolvm1 VMVG, it complains about
2304 more extents required (wich make the exact size of the LV I want to
create), plus where to define the log device to use ?

same command whith --corelog (instead of --mirrorlog disk) succeeds.

Same command without any of these 2 options fails with the same  complain as
the first (man page says that default no option == mirrolog disk).

Any tip ?

Regards

[-- Attachment #2: Type: text/html, Size: 893 bytes --]

[linux-lvm] Re: Ambiguous mirror log option

[brem belguebli]

[-- Attachment #1: Type: text/plain, Size: 790 bytes --]

Running x86_64 RHEL  5u4

2009/9/18, brem belguebli <brem.belguebli@gmail.com>:
>
> Hi,
>
> I've been struggling with lvcreate for more than  a hour to create a
> mirror'ed LV with on disk log, with no success (I'm ashamed! :-| )
>
>
> Here's what I typed on a VG (with 2 X 8678 4MB extents free), it's not a
> free space issue...
>
> lvcreate -m1 --mirrorlog disk  -L 9G -n lvolvm1 VMVG, it complains about
> 2304 more extents required (wich make the exact size of the LV I want to
> create), plus where to define the log device to use ?
>
> same command whith --corelog (instead of --mirrorlog disk) succeeds.
>
> Same command without any of these 2 options fails with the same  complain
> as the first (man page says that default no option == mirrolog disk).
>
> Any tip ?
>
> Regards
>

[-- Attachment #2: Type: text/html, Size: 1212 bytes --]

[linux-lvm] Re: Ambiguous mirror log option

[brem belguebli]

[-- Attachment #1: Type: text/plain, Size: 1122 bytes --]

Got the right doc,

the log device MUST belong to the VG, it cannot be an external device, it is
specified as thrid device vhen creating the LV:

lvcreate -m1 --mirrorlog disk  -L 9G -n lvolvm1 VMVG /dev/firstleg
/dev/secondleg /dev/log...




2009/9/18, brem belguebli <brem.belguebli@gmail.com>:
>
> Running x86_64 RHEL  5u4
>
> 2009/9/18, brem belguebli <brem.belguebli@gmail.com>:
>>
>> Hi,
>>
>> I've been struggling with lvcreate for more than  a hour to create a
>> mirror'ed LV with on disk log, with no success (I'm ashamed! :-| )
>>
>>
>> Here's what I typed on a VG (with 2 X 8678 4MB extents free), it's not a
>> free space issue...
>>
>> lvcreate -m1 --mirrorlog disk  -L 9G -n lvolvm1 VMVG, it complains about
>> 2304 more extents required (wich make the exact size of the LV I want to
>> create), plus where to define the log device to use ?
>>
>> same command whith --corelog (instead of --mirrorlog disk) succeeds.
>>
>> Same command without any of these 2 options fails with the same  complain
>> as the first (man page says that default no option == mirrolog disk).
>>
>> Any tip ?
>>
>> Regards
>>
>
>

[-- Attachment #2: Type: text/html, Size: 1966 bytes --]