Re: aacraid fails when RAID1 array is in anything but Optimal state

["Paul A. Sumner" <paul@zanfx.com>]

You might try the new aacraid module: 1.1.5[2371] from Adaptec's site. I 
had some newer firmware that combined w/ the stock 1.1.2-lk2... got the 
exact 'SCSI hang ?' msg... w/ the new module no such problems. 2.6.9 is 
stable for me except it seems I don't have the write performance I 
should yet (see my last post).

Hope this helps.

Aaron Gowatch wrote:
> We're using Dell PowerEdge 750s with a Dell rebranded Adaptec CERC 1.5/6ch 
> SATA adapter.  The systems have 2 disks configured as RAID1.  If the array 
> is in any other state than 'Optimal' (ie. 'Degraded' or 'Rebuilding') the 
> following error is displayed and the box subsequently panics because its 
> unable to mount the root filesystem.
> 
> We've had the same experience with 2.6.7 and 2.6.9.  Yesterday as a test, 
> I installed RedHat ES 3.0 and it does not exhibit this behavior, but thats 
> kernel 2.4 with different aacraid driver.  We've also updated to the 
> latest recommended firmware in attempt to correct this.
> 
> Is there any way to make this work with kernel 2.6?  Or is this expected 
> behavior for this controller under 2.6?
> 
> Red Hat/Adaptec aacraid driver (1.1.2-lk2 Jan 14 2005)
> AAC0: kernel 4.1.4 build 7403
> AAC0: monitor 4.1.4 build 7403
> AAC0: bios 4.1.0 build 7403
> AAC0: serial bf91c8fafaf001
> scsi0 : aacraid
>   Vendor: DELL      Model: CERC Mirror       Rev: V1.0
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> SCSI device sda: 78057216 512-byte hdwr sectors (39965 MB)
> sda: Write Protect is off
> SCSI device sda: drive cache: write through
>  sda:<3>aacraid: Host adapter reset request. SCSI hang ?
> aacraid: Host adapter appears dead
> scsi: Device offlined - not ready after error recovery: host 0 channel 0 
> id 0 lun 0
> SCSI error : <0 0 0 0> return code = 0x6000000
> end_request: I/O error, dev sda, sector 0
> Buffer I/O error on device sda, logical block 0
> scsi0 (0:0): rejecting I/O to offline device
> Buffer I/O error on device sda, logical block 0
>  unable to read partition table
> Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0
> 
> Thanks,
> Aa.
> 
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