Configuring MSA2324i whith RedHat 5

[Ialiaga U]

Did anyone know how to implement an MSA 2342i with two controlers using RedHat Linux, I'm looking for any manual but I didn't find it. Can anybody help me? or advice me about any manual.

[AnthonySN]

all red hat linux documents can be found at this site.

http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Installation_Guide/index.html

[Alzhy]

You wil need device mapper and device multipath (multipathd) enabled and configured.

Additionally, you NEED to have HP Device Mapper Multipath enablement kit. If you have RHEL up to 5.5 - you can download and install from this URL: javascript:openExternal('http://bizsupport1.austin.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=18964&prodSeriesId=3559651&prodNameId=3559652&swEnvOID=2027&swLang=13&mode=2&taskId=135&swItem=co-82195-1')

Once you download, simpply untar/unpack. and run the INSTALL program. If you are missing device-mapper multipath bits -- it will alert you.

Once installed, you will have the correct /etc/multipath.conf

Zone and present MSA LUNS to your server.

Scan your FC Hosts with FibreUtils or that echo trick on the fc hosts.

Then:

multipath -v2
multipath -ll

You should now be able to see your multipathed device in "multipath -ll" and coresponding mapper and mpath devices like:

/dev/mapper/mpathNNN
/dev/mpath/mpathNNN

either of these you can use in LVM or in Oracle ASM, etc.

If you want "friendly" persistent names like /dev/mapper/oradata001 or /dev/mapper/sapdisk01 -- just edit and add wwids in the wwid aliases section of /etc/multipath.conf and reconfig/reread multipath "multipath -v2"

Hope this helps.

[Ialiaga U]

Thnks,for the reply, but MSA 2324i, has iscsi conection, another point of advice I'm using RHEL 5.3 x64, and I have problems configuring multipath in iscsi, or maybe I'm doing something Wrong, that's why I'm looking for a manual, or a guide to show me how to do it.

[Alzhy]

Oh so sorry man...
But here are a couple of Googly good hitz which may help ya:

http://www.cyberciti.biz/tips/tag/red-hat-iscsi
http://www.cyberciti.biz/tips/rhel-centos-fedora-linux-iscsi-howto.html

iSCSI is still being detested in my enterprise even with the recent million IOPS demo by Intel.

FC and soon FCOE still reigns supreme in my hood.

[Tim Nelson]

yes. telling us that you are using iSCSI is an important detail that was left off your description.

so if I go to redhat knowledge base and type in multipath iscsi, then just like magic, a document telling how to do it shows up..

did you try this ?