[olug] RDAC or SDD for ESX 3.5?

[Jay Swackhamer]

dmesg should show if the disks are being seen.

You can take a look at the devices in /sys/block/
and cat the DEVICE_NAME/device/model to see where they are attached from.


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Jay Swackhamer
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Quoting Hurley Rod <RHurley at TENASKA.com>:

> Here's a tricky one for you:  We are testing ESX3.5 and my guy says he
> needs to connect to an old IBM SAN, FAStT200, 1 Gb Fibre (only thing we
> have right away with enough space for him).  Everything is zoned right
> at the switch, but the server doesn't see the LUN.  The switch sees the
> server HBA WWN so it's not a connection issue.
>
>
>
> I know that there should be an RDAC driver installed on the server,
> which is the old school version of the newer SDD (subsystem device
> driver).  I found an RPM for a 2.4.xx RHEL kernel that installed ok, but
> seemed to have no effect.  Nothing shows up in installed modules (lsmod)
> and I don't know where to go from there on the server.
>
>
>
> The 2 problems I have:
>
> 1.	Not sure whether the legacy driver I am using actually would
> work since it is strictly for RHEL2.4.xxx and this is an ESX3.5
> installation (which seems to have 2.4 kernel).  Since 3.5 is very new,
> IBM site is sparse (due to the age of the FASt200 and support no longer
> exists) and VMware does not create their own subsystem device drivers.
> 2.	Not a Linux guru per se, more like a long time dabbler.  I have
> been using the VMware Virtual Center GUI (SQL based, runs on separate
> server) to rescan the disks, since I am not familiar with where to look
> in the OS itself.  Since I have seen a few buggy issues with the Virtual
> Center during past rescans with ESX 3.0.1 I can't rule this out.
>
>
>
> Where would I look in the OS to see if the disks are seen by the server,
> to rule out the GUI?
>
>
>
> Any other ideas?
>
>
>
> Rod
>
> "A good friend will help you move.  A great friend will help you move a
> dead body."
>
>
>
>
>
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