[linux-lvm] Error setting up a mirrored lv

[Laurenz, Dirk]

so, what is the best way to mirror storage?

lvm ontop of multipath and mirrored lvs or
lvm ontop of md ontop of multipath

Mit freundlichem Gruss,

Dirk Laurenz
Systems Engineer
S DE SE PS N/O
Fujitsu Siemens Computers GmbH
Hildesheimer Strasse 25
30880 Laatzen
Germany

Telephone:	+49 511 84 89 18 08
Telefax:	+49 511 84 89 25 18 08
Mobile:	+49 170 22 10 78 1 
Email:	mailto: dirk.laurenz at fujitsu-siemens.com
Internet:	http://www.fujitsu-siemens.com
 

>> -----Original Message-----
>> From: linux-lvm-bounces at redhat.com 
>> [mailto:linux-lvm-bounces at redhat.com] On Behalf Of Luca Berra
>> Sent: Wednesday, July 19, 2006 12:52 AM
>> To: linux-lvm at redhat.com
>> Subject: Re: [linux-lvm] Error setting up a mirrored lv
>> 
>> On Tue, Jul 18, 2006 at 03:16:13PM -0400, Harik A'ttar wrote:
>> >As you noticed, you need a log partition.  dm-mirror is a 
>> bit smarter 
>> >then the basic MD raid1 in that it uses a log disk to keep track of 
>> >write completions for synchronization.  I've only recently 
>> got a kernel 
>> Just for fairness, modern md also supports bitmaps either on 
>> a different
>> device or inside the md components for this very purpose.
>> 
>> L.
>> 
>> -- 
>> Luca Berra -- bluca at comedia.it
>>         Communication Media & Services S.r.l.
>>  /"\
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