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Old 05-18-2010, 03:21 AM
Raj Har
 
Default LVextend

Hello all,
i have one confusion please help me.

1.suppose we creates 500M PV
2.500M VG1
3.200M lV1
4.format with mke2fs -j /dev/vg1/lv1
5.mount /dev/vg1/lv1 /new
6.i want lvextend
7.when we extend lv from vg. after extend we need not to format this
partation we run resize2fs command for using this partition.

why we not need to fromat this partition?
when we create first time lv we format it bt not in extend case why?

thanks
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Old 05-18-2010, 03:53 AM
"Geofrey Rainey"
 
Default LVextend

Because the file system already exists and doesn't need to be created
using mke2fs, it just needs to be resized, hence "resize2fs".

-----Original Message-----
From: redhat-list-bounces@redhat.com
[mailto:redhat-list-bounces@redhat.com] On Behalf Of Raj Har
Sent: Tuesday, 18 May 2010 3:22 p.m.
To: redhat-list@redhat.com
Subject: LVextend

Hello all,
i have one confusion please help me.

1.suppose we creates 500M PV
2.500M VG1
3.200M lV1
4.format with mke2fs -j /dev/vg1/lv1
5.mount /dev/vg1/lv1 /new
6.i want lvextend
7.when we extend lv from vg. after extend we need not to format this
partation we run resize2fs command for using this partition.

why we not need to fromat this partition?
when we create first time lv we format it bt not in extend case why?

thanks
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Old 05-18-2010, 03:57 AM
"Marti, Robert"
 
Default LVextend

Because you're extending an already formatted partition. Read up on
what formatting does in the Linux world. The extend process covers any
magic that might need to happen.

Sent from my iPhone

On May 17, 2010, at 22:29, "Raj Har" <raj4list@gmail.com> wrote:

> Hello all,
> i have one confusion please help me.
>
> 1.suppose we creates 500M PV
> 2.500M VG1
> 3.200M lV1
> 4.format with mke2fs -j /dev/vg1/lv1
> 5.mount /dev/vg1/lv1 /new
> 6.i want lvextend
> 7.when we extend lv from vg. after extend we need not to format this
> partation we run resize2fs command for using this partition.
>
> why we not need to fromat this partition?
> when we create first time lv we format it bt not in extend case why?
>
> thanks
> --
> redhat-list mailing list
> unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
> https://www.redhat.com/mailman/listinfo/redhat-list

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Old 05-19-2010, 05:18 AM
madunix
 
Default LVextend

look @
http://chrishood.vox.com/library/post/expand-san-lun-without-destroying-logical-volumes.html
http://www.redhat.com/magazine/009jul05/features/lvm2/
http://tldp.org/HOWTO/LVM-HOWTO/extendlv.html


On Tue, May 18, 2010 at 5:57 AM, Marti, Robert <RJM002@shsu.edu> wrote:
> Because you're extending an already formatted partition. Read up on
> what formatting does in the Linux world. The extend process covers any
> magic that might need to happen.
>
> Sent from my iPhone
>
> On May 17, 2010, at 22:29, "Raj Har" <raj4list@gmail.com> wrote:
>
>> Hello all,
>> * * * * * * * *i have one confusion please help me.
>>
>> 1.suppose we creates 500M PV
>> 2.500M VG1
>> 3.200M lV1
>> 4.format with mke2fs -j /dev/vg1/lv1
>> 5.mount /dev/vg1/lv1 /new
>> 6.i want lvextend
>> 7.when we extend lv from vg. after extend we need not to format this
>> partation we run resize2fs command for using this partition.
>>
>> why we not need to fromat this partition?
>> when we create first time lv we format it bt not in extend case why?
>>
>> thanks
>> --
>> redhat-list mailing list
>> unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
>> https://www.redhat.com/mailman/listinfo/redhat-list
>
> --
> redhat-list mailing list
> unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
> https://www.redhat.com/mailman/listinfo/redhat-list
>

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Old 05-24-2010, 02:34 AM
Joy Methew
 
Default LVextend

Hello Raj,
i wanna add one question in ur query.
when we format first LV1 (200M) it make inode table for 200M.
when we extend 300M size in existing LV1 how system arrange inode table for
300M.

any suggestion?

On Wed, May 19, 2010 at 10:48 AM, madunix <madunix@gmail.com> wrote:

> look @
>
> http://chrishood.vox.com/library/post/expand-san-lun-without-destroying-logical-volumes.html
> http://www.redhat.com/magazine/009jul05/features/lvm2/
> http://tldp.org/HOWTO/LVM-HOWTO/extendlv.html
>
>
> On Tue, May 18, 2010 at 5:57 AM, Marti, Robert <RJM002@shsu.edu> wrote:
> > Because you're extending an already formatted partition. Read up on
> > what formatting does in the Linux world. The extend process covers any
> > magic that might need to happen.
> >
> > Sent from my iPhone
> >
> > On May 17, 2010, at 22:29, "Raj Har" <raj4list@gmail.com> wrote:
> >
> >> Hello all,
> >> i have one confusion please help me.
> >>
> >> 1.suppose we creates 500M PV
> >> 2.500M VG1
> >> 3.200M lV1
> >> 4.format with mke2fs -j /dev/vg1/lv1
> >> 5.mount /dev/vg1/lv1 /new
> >> 6.i want lvextend
> >> 7.when we extend lv from vg. after extend we need not to format this
> >> partation we run resize2fs command for using this partition.
> >>
> >> why we not need to fromat this partition?
> >> when we create first time lv we format it bt not in extend case why?
> >>
> >> thanks
> >> --
> >> redhat-list mailing list
> >> unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
> >> https://www.redhat.com/mailman/listinfo/redhat-list
> >
> > --
> > redhat-list mailing list
> > unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
> > https://www.redhat.com/mailman/listinfo/redhat-list
> >
>
> --
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>
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Old 05-24-2010, 02:51 AM
"Marti, Robert"
 
Default LVextend

When you run ext2resize it sets up the inode table and superblocks.

Sent from my iPhone

On May 23, 2010, at 9:38 PM, "Joy Methew" <ml4joy@gmail.com> wrote:

> Hello Raj,
> i wanna add one question in ur query.
> when we format first LV1 (200M) it make inode table for 200M.
> when we extend 300M size in existing LV1 how system arrange inode
> table for
> 300M.
>
> any suggestion?
>
> On Wed, May 19, 2010 at 10:48 AM, madunix <madunix@gmail.com> wrote:
>
>> look @
>>
>> http://chrishood.vox.com/library/post/expand-san-lun-without-destroying-logical-volumes.html
>> http://www.redhat.com/magazine/009jul05/features/lvm2/
>> http://tldp.org/HOWTO/LVM-HOWTO/extendlv.html
>>
>>
>> On Tue, May 18, 2010 at 5:57 AM, Marti, Robert <RJM002@shsu.edu>
>> wrote:
>>> Because you're extending an already formatted partition. Read up on
>>> what formatting does in the Linux world. The extend process covers
>>> any
>>> magic that might need to happen.
>>>
>>> Sent from my iPhone
>>>
>>> On May 17, 2010, at 22:29, "Raj Har" <raj4list@gmail.com> wrote:
>>>
>>>> Hello all,
>>>> i have one confusion please help me.
>>>>
>>>> 1.suppose we creates 500M PV
>>>> 2.500M VG1
>>>> 3.200M lV1
>>>> 4.format with mke2fs -j /dev/vg1/lv1
>>>> 5.mount /dev/vg1/lv1 /new
>>>> 6.i want lvextend
>>>> 7.when we extend lv from vg. after extend we need not to format
>>>> this
>>>> partation we run resize2fs command for using this partition.
>>>>
>>>> why we not need to fromat this partition?
>>>> when we create first time lv we format it bt not in extend case
>>>> why?
>>>>
>>>> thanks
>>>> --
>>>> redhat-list mailing list
>>>> unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
>>>> https://www.redhat.com/mailman/listinfo/redhat-list
>>>
>>> --
>>> redhat-list mailing list
>>> unsubscribe mailto:redhat-list-request@redhat.com?
>>> subject=unsubscribe
>>> https://www.redhat.com/mailman/listinfo/redhat-list
>>>
>>
>> --
>> redhat-list mailing list
>> unsubscribe mailto:redhat-list-request@redhat.com?subject=unsubscribe
>> https://www.redhat.com/mailman/listinfo/redhat-list
>>
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