[CentOS] iscsi storage, LACP or Multipathing | Migration or rebuild?

Wed Aug 15 14:28:23 UTC 2012
Svavar Örn Eysteinsson <svavar at fiton.is>

Hi Götz.
I'm running Centos 6.2 on a Proliant DL380 G7 server connected to a HP 
Lefthand P4500
using multipath, and ALB(Adaptive Load Balancing) on the Lefthand box it 

Regarding, multipath vs bonding read this -> 

You will need to go through the storage manual for red hat enterprise 6 
and read some chapters
regarding configuring your options/needs for your scenario.

Best regards,

Svavar O - Iceland


Götz Reinicke wrote:
> Hi,
> I do have one iscsi storage with 4 GBit nics of which currently only one
> is configured with an ip and which is in productive use by one cent os
> 6.3 server.
> Doing some research brought me to the idea to use some nic bonding or
> multipathing for that storage, but multipathing I did about four or five
> years ago only once :)
> Furthormore I can't find the ultimate answer (may be there is not such)
> what will be better for us:
> bonding or multipathing.
> The storage is used for backup; it's connected to an backupserver which
> pulls data from different servers ... may be at the same time or one
> after an other. The server uses two bonded nics to the LAN.
> My question regarding the setup is, what might be good or better:
> bonding or multipathing. We'd like to increase performance and nic
> failover if one link breaks.
> If multipathing is to be preferred, is it possible to preserve the data
> currently saved on the storages ext4?
> And googling shows up a lot of different how tos and the redhat doc; but
> I din not found one describing a straight forward setup.
> So thanks a lot for any suggestion or comments!
> 	Regards . Götz
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