Re: Attaching Linux box to [EMC] SAN

Thanks John, that was helpful. I am really looking for similar high
level information.

You mentioned that after LUNs are created, they function as regular
disk devices.
1. Does that mean I can configure RAID over it?
2. How would it work for controllers?
3. Can I mount the filesystem with say, writeback mode (or with noatime
setting)? Would /etc/fstab file work the same way?

Thanks.

John-Paul Stewart wrote:
gandalf.me@xxxxxxxxx wrote:
Hi,

I am trying to attach a RH AS 4 server to EMC SAN. Can somebody point
me to any guide/howto for this.

What specifically are you having trouble with?

You'll need to install an FC card in your Linux box and load the
appropriate driver. If you need help with that, tell us what brand and
model of FC card you're using.

Then you'll need to configure the EMC gear to export LUNs. For that,
consult the EMC documentation or ask on an EMC mailing list or
newsgroup. This is not the place to ask EMC-specific questions and the
answer likely varies depending on exactly what EMC equipment you have.

Once that's done, your Linux box should see the EMC LUNs as Linux
/dev/sdXY devices (just like a SCSI disk) that you can make filesystems
on and mount as usual.

I don't know of a start-to-finish guide for this---usually the people
who have access to EMC gear either have experienced sysadmins to do this
for them or are experienced sysadmins themselves. But if you need
specific help, let us know where along the way that is.

.

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