hello, vanliesh
if i remember it correct, in mylex raid card menu there is an option where
you change the status of the drive, please change the status of the drive
from dead (D) to online (O), once you achieve that, start the rebuild
process. i am 99% sure that this is what i did when i worked with this card
once and performed a failure analysis.
thanks.. cheers,,bb
At 01:23 PM 11/26/99 +0100, vanliesh wrote:
>Hi everyone,
>
>
>I have the following configuration:
>
>Mainboard : Supermicro P6SBA
>Memory : 128MB SDRAM
>SCSI-controller : Symbios 875
>RAID-controller : Mylex eXtreme RAID DAC1164P
>Harddisk : 3 * Seagate Cheetah 9.1 Gb ST39102LW
>
>The Symbios SCSI-controller is used for the CD-rom, the three harddrives are
>configurated as RAID-5. I am using Redhat Linux 6.1. Everything works very
>well, but I cannot rebuild a harddrive without rebooting the server.
>
>This is an overview of the configuration messages:
>
> ***** DAC960 RAID Driver Version 2.2.4 of 23 August 1999 *****
> Copyright 1998-1999 by Leonard N. Zubkoff <[EMAIL PROTECTED]>
> Configuring Mylex DAC1164P PCI RAID Controller
> Firmware Version: 5.07-0-79, Channels: 2, Memory Size: 16MB
> PCI Bus: 2, Device: 8, Function: 0, I/O Address: Unassigned
> PCI Address: 0xFEAFFF80 mapped at 0xC4809F80, IRQ Channel: 5
> Controller Queue Depth: 128, Maximum Blocks per Command: 128
> Driver Queue Depth: 127, Maximum Scatter/Gather Segments: 33
> Stripe Size: 64KB, Segment Size: 8KB, BIOS Geometry: 255/63
> Physical Devices:
> 0:1 Vendor: SEAGATE Model: ST39102LW Revision: 0006
> Serial Number: LJG6871700001934JHGM
> Disk Status: Online, 17782784 blocks
> 0:2 Vendor: SEAGATE Model: ST39102LW Revision: 0006
> Serial Number: LJR02916000019460G8B
> Disk Status: Online, 17782784 blocks
> 0:3 Vendor: SEAGATE Model: ST39102LW Revision: 0006
> Serial Number: LJH0426100001934JLXW
> Disk Status: Online, 17782784 blocks
> 0:7 Vendor: MYLEX Model: DAC1164P Revision: 0507
> Serial Number:
> 1:7 Vendor: MYLEX Model: DAC1164P Revision: 0507
> Serial Number:
> Logical Drives:
> /dev/rd/c0d0: RAID-5, Online, 35565568 blocks, Write Thru
>
>
>I ran into problems when trying to rebuild a failed drive (it is
>hot-swappable) .Then I waited for about 30 sec and put it back in. Then I
>issued the rebuild command. The following message appears:
>
> Rebuild of Physical Drive 0:2 Failed - Attempt to Rebuild Online or
> Unresponsive Drive
>
>There is a strange thing with the drive status: When I remove a harddisk,
the
>status becomes critical and then DEAD.
>When I ask for the current status, it only shows
>
> 0:1 Vendor: SEAGATE Model: ST39102LW Revision: 0006
> Serial Number: LJG6871700001934JHGM
> Disk Status: Online, 17782784 blocks, 8 resets
> 0:2 Vendor: SEAGATE Model: ST39102LW Revision: 0006
> Serial Number: LJR02916000019460G8B
> 0:3 Vendor: SEAGATE Model: ST39102LW Revision: 0006
> Serial Number: LJH0426100001934JLXW
> Disk Status: Online, 17782784 blocks, 8 resets
>
>As you can see, there is no diskstatus of drive 0:2 which is the drive I
>removed. When I reboot the machine the status is there again and shows
>
> 0:1 Vendor: SEAGATE Model: ST39102LW Revision: 0006
> Serial Number: LJG6871700001934JHGM
> Disk Status: Online, 17782784 blocks,
> 0:2 Vendor: SEAGATE Model: ST39102LW Revision: 0006
> Serial Number: LJR02916000019460G8B
> Disk Status: Dead, 17782784 blocks
> 0:3 Vendor: SEAGATE Model: ST39102LW Revision: 0006
> Serial Number: LJH0426100001934JLXW
> Disk Status: Online, 17782784 blocks,
>
>Now the status of drive 0:2 is DEAD and I can start a rebuild of drive 0:2.
>
> Rebuild of Physical Drive 0:2 Initiated
> Rebuild in Progress: Logical Drive 0 (/dev/rd/c0d0) 1% completed
> ....
> Rebuild in Progress: Logical Drive 0 (/dev/rd/c0d0) 97% completed
> Rebuild Completed Successfully
> Physical Drive 0:2 is now ONLINE
> Logical Drive 0 (/dev/rd/c0d0) is now ONLINE
>
>What can be the cause of this?? I don't want to reboot the server when a
>drive crashes, it should be possible to rebuild it online!
>It seems to me that the RAID-controller should scan the SCSI bus for new
>harddrives, even without doing a reboot.
>
>
>Anyone?????
>
>
>Maarten van Lieshout
>System Administrator
>
>email:[EMAIL PROTECTED]
>
>
>
