On Fri, Apr 19, 2002 at 12:18:11PM -0400, SoulBlazer wrote:

Well I applied those modifications however I am noticing the following :

--BEGIN SNIPPIT--

# : mdadm -D /dev/md/1
/dev/md/1:
        Version : 00.90.00
  Creation Time : Fri Apr 19 12:14:13 2002
     Raid Level : multipath
     Array Size : 17688448 (16.86 GiB 18.11 GB)
   Raid Devices : 1
  Total Devices : 2
Preferred Minor : 1
    Persistence : Superblock is persistent

    Update Time : Fri Apr 19 12:14:13 2002
          State : dirty, no-errors
 Active Devices : 1
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 1

    Number   Major   Minor   RaidDevice State
       0      65      113        0      active sync   
/dev/scsi/host3/bus0/target1/lun0/part1
       1       8       17        1        
/dev/scsi/host2/bus0/target1/lun0/part1

Oops,
seems i forgot about spares :(

multipath.c sets all disks as spares to start with.
a dirty hack could be:

look for:
        /*
         * Mark all disks as spare to start with, then pick our
         * active disk.  If we have a disk that is marked active
         * in the sb, then use it, else use the first rdev.
         */

below you will find:
       if (disk_active(desc)) {
            if(!conf->working_disks) { //remove this line
                printk(OPERATIONAL, partition_name(rdev->dev),
                    desc->raid_disk);
                disk->operational = 1;
                disk->spare = 0;
                conf->working_disks++;
                def_rdev = rdev;
            } else { //remove this line
                mark_disk_spare(desc); //remove this line
            } //remove this line
        } else
            mark_disk_spare(desc);

remove the lines i market with //remove this line
and it should activate the disks

i wont have a system at hand to test this, so please let me know
if it works

we then need to clean up the logic for initialization
since is nonsense to set a disk as spare then reset it back
again as operational, but this could work for a start

good luck

L.

-- 
Luca Berra -- bluca@comedia.it
        Communication Media & Services S.r.l.
 /"\
 \ /     ASCII RIBBON CAMPAIGN
  X        AGAINST HTML MAIL
 / \