RECOVER HDD RAID5 WITH SERVER UP --> any soft for linux ?

[tfinez]

I have a PE1850 with the controller PERC 4e/Di. The problem is that I've 
implemented a RAID5 and one disk is degraded. I've pasted results from 
OMSA. It's a Debian with kernel  2.6.17.6.  I'd like to know if there's 
any application that permits recover the degraded disk with the server 
online.

I've found an utility that permits remain the server online while you 
make the rebuild (Array Manager) but unfortunatelly it only works with 
WINDOWS!!


omreport storage vdisk
    List of Virtual Disks in the System

    Controller PERC 4e/Di (Embedded)
    ID           : 0
    Status       : Non-Critical
    Name         : Virtual Disk 0
    State        : Degraded
    Progress     : Not Applicable
    Layout       : RAID-5
    Size         : 136.48 GB (146548981760 bytes)
    Device Name  :
 

omreport storage adisk controller=0
    List of Array/Hard Disks on Controller PERC 4e/Di (Embedded)

    Controller PERC 4e/Di (Embedded)
    ID                        : 0:0
    Status                    : Ok
    Name                      : Array Disk 0:0
    State                     : Online
    Progress                  : Not Applicable
    Capacity                  : 68.24 GB (73274490880 bytes)
    Used RAID Disk Space      : 68.24 GB (73274490880 bytes)
    Available RAID Disk Space : 0.00 GB (0 bytes)
    Hot Spare                 : No
    Product ID                : ST373454LC
    Revision                  : D403
    Vendor ID                 : SEAGATE

    ID                        : 0:1
    Status                    : Ok
    Name                      : Array Disk 0:1
    State                     : Online
    Progress                  : Not Applicable
    Capacity                  : 68.24 GB (73274490880 bytes)
    Used RAID Disk Space      : 68.24 GB (73274490880 bytes)
    Available RAID Disk Space : 0.00 GB (0 bytes)
    Hot Spare                 : No
    Product ID                : ST373454LC
    Revision                  : D403
    Vendor ID                 : SEAGATE

    ID                        : 0:2
    Status                    : Critical
    Name                      : Array Disk 0:2
    State                     : Failed
    Progress                  : Not Applicable
    Capacity                  : 68.24 GB (73274490880 bytes)
    Used RAID Disk Space      : 68.24 GB (73274490880 bytes)
    Available RAID Disk Space : 0.00 GB (0 bytes)
    Hot Spare                 : No
    Product ID                : ST373454LC
    Revision                  : D403
    Vendor ID                 : SEAGATE