From: Morten Torstensen <morten@mortent.org>
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] Mirrored LVs
Date: Fri, 23 Oct 2009 20:28:19 +0200 [thread overview]
Message-ID: <1958a88d0910231128x2b072b48q504d56b03da39196@mail.gmail.com> (raw)
In-Reply-To: <20091023172914.GA12748@us.ibm.com>
>> Why cannot the mirrorlog be stored persistently in one or more LEs in
>> the LV? Why the need for a seperate PV for this?
>
> For better redundancy...
In a LE it would be mirrored too and a copy would be in each mirror...
> Use "--alloc anywhere" to place the log LV on one of them when you
> create your mirror.
Yes, but this will have the side effect of not ensuring separate PVs
for the mirrored LV? An the mirror log would still not be mirrored, so
in a failure situation you would still face data loss or force a fully
resync of the mirror.
--
//Morten
//morten@mortent.org
next prev parent reply other threads:[~2009-10-23 18:28 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-23 14:13 [linux-lvm] Mirrored LVs Morten Torstensen
2009-10-23 17:29 ` malahal
2009-10-23 18:28 ` Morten Torstensen [this message]
2009-10-23 19:02 ` malahal
2009-10-23 19:15 ` Alasdair G Kergon
2009-10-23 19:41 ` Morten Torstensen
2009-10-23 18:40 ` brem belguebli
2009-10-23 19:15 ` malahal
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