Re: Array of disks attached to multiple controllers

[Lukas Kubin <kubin@xxxxxxxxxx>]

Ok, the output follows:

=====

/dev/md0:
        Version : 00.90.00
  Creation Time : Tue Sep 14 16:02:42 2004
     Raid Level : raid5
     Array Size : 782929792 (746.66 GiB 801.72 GB)
    Device Size : 195360896 (186.31 GiB 200.05 GB)
   Raid Devices : 16
  Total Devices : 17
Preferred Minor : 0
    Persistence : Superblock is persistent

    Update Time : Tue Sep 14 16:02:42 2004
          State : dirty, recovering
 Active Devices : 16
Working Devices : 17
 Failed Devices : 0
  Spare Devices : 1

         Layout : left-symmetric
     Chunk Size : 128K

 Rebuild Status : 0% complete

    Number   Major   Minor   RaidDevice State
       0       8       16        0      active sync   /dev/sdb
       1       8       32        1      active sync   /dev/sdc
       2       8       48        2      active sync   /dev/sdd
       3       8       64        3      active sync   /dev/sde
       4       8       80        4      active sync   /dev/sdf
       5       8       96        5      active sync   /dev/sdg
       6       8      112        6      active sync   /dev/sdh
       7       8      128        7      active sync   /dev/sdi
       8       8      144        8      active sync   /dev/sdj
       9       8      160        9      active sync   /dev/sdk
      10       8      176       10      active sync   /dev/sdl
      11       8      192       11      active sync   /dev/sdm
      12       8      208       12      active sync   /dev/sdn
      13       8      224       13      active sync   /dev/sdo
      14       8      240       14      active sync   /dev/sdp
      15      65        0       15      active sync   /dev/sdq
      16      65       16       16      spare   /dev/sdr
           UUID : c18d1ba9:d7d4f338:6d83a4e1:023cbbdb
         Events : 0.1

=====

All the disks are SATA 200GB, the first controller (for drives sd{a..f}) 
is 3ware 8xxx, the second is 3ware 9000 ATA Raid controller. The first 
controller uses 3w-xxxx kernel module, the second one 3x-9xxx on linux 
2.4.27.

Thank you for any help.

lukas

Guy wrote:
> Give us more info.
> Output from mdadm -D /dev/md?
>
> Guy
>
>
> -----Original Message-----
> From: linux-raid-owner@xxxxxxxxxxxxxxx
> [mailto:linux-raid-owner@xxxxxxxxxxxxxxx] On Behalf Of Lukas Kubin
> Sent: Tuesday, September 14, 2004 9:22 AM
> To: linux-raid@xxxxxxxxxxxxxxx
> Subject: Array of disks attached to multiple controllers
>
> I'm having troubles creating Raid-5 array consisted of 16 (+1 spare) 
> disks attached to two 3ware (not same version) SATA controllers.
>
> Mkraid creates the array without problems, however the array's total 
> size only equals the sum of space on drives attached to the first of 2 
> controllers. Ie, sd{b..f} are on scsi0 and sd{g..r} on scsi1. The space 
> of created array is close to the sum of drives attechted to scsi0 only.
>
> Is it possible to combine drives on 2 controllers into one array? If 
> not, what solution should I use to have one filesystem containing whole 
> the drivespace on Raid-5?
>
> Thank you.
>
> lukas

--
Lukas Kubin

phone: +420596398275
email: kubin@xxxxxxxxxx

Information centre
The School of Business Administration in Karvina
Silesian University in Opava
Czech Republic
http://www.opf.slu.cz

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