MD3000 on Debian Lenny

Adrian Schmitz aschmitz at
Mon Feb 15 08:57:01 CST 2010


Below is the config I am using now on one of my Ubuntu Server machines with an MD3000i.. With this config, the i/o errors usually show up for a little bit until rdac disables the necessary paths, and then they go away. Failover works *okay* with this configuration.. if anyone on the list has more experience with this sort of thing, feedback or recommendations on how to improve this config are welcome. Hope this helps.. 



blacklist       {
                device  {
                        vendor DELL*
                        product Universal*
                device  {
                        vendor Dell*
                        product Virtual*

devices {

        device {
                vendor                  DELL
                product                 MD3000i
                path_grouping_policy    group_by_prio
                features                "1 queue_if_no_path"
                path_checker            rdac
                prio_callout            "/sbin/mpath_prio_rdac /dev/%n"
                hardware_handler        "1 rdac"
#               prio                    "rdac"
                failback                immediate

multipaths {
        multipath {
                        wwid 36001e4f0003ceb09000006c848dbbbdb
                        alias testlun
# Additional wwid-to-alias mappings here..


-----Original Message-----
From: linux-poweredge-bounces at [mailto:linux-poweredge-bounces at] On Behalf Of lkml at
Sent: Monday, February 15, 2010 9:01 AM
To: linux-poweredge at
Subject: MD3000 on Debian Lenny 

I'm trying to get a MD3000 working with Debian Lenny and it looks like a
big mess from my POV. Dell only supports SuSE and RedHat, but I didn't
expect that it'd be so hard to get this up and running on Debian.

Can anyone give me some pointers to get this working? I don't care if I
can use multipath or not. I just want a reliable way to access the disks.

So far I've tryed with the multipath-tools, dm-rdac and porting (kind of)
the dell SM-Tools to Debian, but nothing got me rid of the "I/O errors"
that happen when accessing the exported devices.

Best Regards,

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