From: Georges Giralt <georges.giralt@free.fr>
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] mirroring an LV?
Date: Sun, 17 Aug 2008 19:37:25 +0200 [thread overview]
Message-ID: <48A861D5.5000106@free.fr> (raw)
In-Reply-To: <20080817171618.GB13912@us.ibm.com>
malahal@us.ibm.com a �crit :
> Mirror needs at least 3 PVs (2 for legs and 1 for dirty log) and you
> don't have 3 PVs in that volume group!
>
> --Malahal.
>
> Gordon McLellan [gordonthree@gmail.com] wrote:
>> I'm pulling my hair out trying to setup a mirrored logical volume.
>>
>> lvconvert tells me I don't have enough free space, even though I have
>> hundreds of gigabytes free on both physical volumes.
>>
>> Command: lvconvert -m1 /dev/vg1/iscsi_deeds_data
>> Insufficient suitable allocatable extents for logical volume : 10240
>> more required
>>
>> Any ideas?
>>
>> Thanks!,
>>
>> Gordon
>>
>> Here's the output from the lvconvert with verbose and debugging turned on:
>>
>> # lvconvert -vvv -d -m1 /dev/vg1/iscsi_deeds_data
........................snip.........................;;
Hi !
IMHO, you would be good when using soft mirror (md) to mirror your 2 PV
and then make a vg on the md and then lv into it...
I use 3 disks to mirror my VG/LV and it is a waste. At next major system
upgrade I'll convert it to MD/VG and reclaim a disk.
Hope this helps !
--
If the only tool you have is a hammer, you tend to see every problem as
a nail.
Abraham Maslow
prev parent reply other threads:[~2008-08-17 17:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-17 4:54 [linux-lvm] mirroring an LV? Gordon McLellan
2008-08-17 17:16 ` malahal
2008-08-17 17:37 ` Georges Giralt [this message]
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