ext3fs SAS 5/i raid

[Patrick_Boyd at Dell.com]

You might want to look into getting the latest driver off
support.dell.com. You should not be seeing the indivdual drives in the
OS and this might be the cause of your problems.

________________________________

From: Steven Stringham [mailto:steve at stringhams.org] 
Sent: Wednesday, November 29, 2006 10:02 AM
To: Boyd, Patrick
Cc: linux-poweredge-Lists
Subject: Re: ext3fs SAS 5/i raid


I have two physical drives in the unit.

I find it interesting that the kernel sees both drives. You can see this
with the attached output of the messages log. And then it sees the
virtual disk as well. And, it says that the access to the disk is
"direct access".

Could this be my problem? Will I be able to do what I want with this
hardware config? True hardware mirroring with the SAS5/ir controller?


Thanks.
Steven Stringham







# fdisk -l

Disk /dev/sda: 499.9 GB, 499999834112 bytes
255 heads, 63 sectors/track, 60788 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14       60788   488175187+  8e  Linux LVM




Nov 28 02:28:41 localhost kernel: SCSI subsystem initialized
Nov 28 02:28:41 localhost kernel: Fusion MPT base driver 3.04.01
Nov 28 02:28:41 localhost kernel: Copyright (c) 1999-2005 LSI Logic
Corporation
Nov 28 02:28:41 localhost kernel: Fusion MPT SAS Host driver 3.04.01
Nov 28 02:28:41 localhost kernel: ACPI: PCI Interrupt 0000:02:08.0[A] ->
GSI 16 (level, low) -> IRQ 169
Nov 28 02:28:41 localhost kernel: mptbase: Initiating ioc0 bringup
Nov 28 02:28:41 localhost kernel: input: ImPS/2 Generic Wheel Mouse as
/class/input/input1
Nov 28 02:28:41 localhost kernel: ioc0: SAS1068:
Capabilities={Initiator}
Nov 28 02:28:42 localhost kernel: scsi0 : ioc0: LSISAS1068,
FwRev=00063200h, Ports=1, MaxQ=511, IRQ=169
Nov 28 02:28:42 localhost kernel:   Vendor: ATA       Model:
HDS725050KLA360   Rev: AB5A
Nov 28 02:28:42 localhost kernel:   Type:   Direct-Access
ANSI SCSI revision: 05
Nov 28 02:28:42 localhost kernel:   Vendor: ATA       Model:
HDS725050KLA360   Rev: AB5A
Nov 28 02:28:42 localhost kernel:   Type:   Direct-Access
ANSI SCSI revision: 05
Nov 28 02:28:42 localhost kernel:   Vendor: Dell      Model: VIRTUAL
DISK      Rev: 1028
Nov 28 02:28:42 localhost kernel:   Type:   Direct-Access
ANSI SCSI revision: 05
Nov 28 02:28:42 localhost kernel: SCSI device sda: 976562176 512-byte
hdwr sectors (500000 MB)
Nov 28 02:28:43 localhost kernel: sda: Write Protect is off
Nov 28 02:28:43 localhost kernel: SCSI device sda: drive cache: write
through
Nov 28 02:28:44 localhost kernel: SCSI device sda: 976562176 512-byte
hdwr sectors (500000 MB)
Nov 28 02:28:44 localhost kernel: sda: Write Protect is off
Nov 28 02:28:44 localhost kernel: SCSI device sda: drive cache: write
through
Nov 28 02:28:44 localhost kernel:  sda: sda1 sda2
Nov 28 02:28:44 localhost kernel: sd 0:1:0:0: Attached scsi disk sda
Nov 28 02:28:45 localhost kernel: device-mapper: ioctl: 4.7.0-ioctl
(2006-06-24) initialised: dm-devel at redhat.com
Nov 28 02:28:45 localhost kernel: EXT3-fs: INFO: recovery required on
readonly filesystem.
Nov 28 02:28:45 localhost kernel: EXT3-fs: write access will be enabled
during recovery.
Nov 28 02:28:45 localhost kernel: kjournald starting.  Commit interval 5
seconds
Nov 28 02:28:45 localhost kernel: EXT3-fs: recovery complete.
Nov 28 02:28:45 localhost kernel: EXT3-fs: mounted filesystem with
ordered data mode.



Patrick_Boyd at Dell.com wrote: 

	How many physical drives do you have in the system? 
	
	Also could you send the output of fdisk -l?
	
	Thanks,
	Patrick Boyd
	
	-----Original Message-----
	From: linux-poweredge-bounces at dell.com
	[mailto:linux-poweredge-bounces at dell.com] On Behalf Of Steven
Stringham
	Sent: Tuesday, November 28, 2006 9:51 AM
	To: Gordon Henderson; linux-poweredge-Lists
	Subject: Re: ext3fs SAS 5/i raid
	
	Gordon,
	Thanks for your reply. That is what I thought.
	
	As you can from the following log, I do have multiple drives in
the
	system. And I am only using one of them presently. When I look
at the
	drive partitions using Webmin - it only shows one.  This leads
me to
	believe that indeed - it is supposed to be hardware mirroring.
Also,
	when I go into the controller BIOS afterwards, it shows the
drive
	remirroring (after putting the drive back in).
	
	
	
	[root at localhost misc]# df -h
	Filesystem            Size  Used Avail Use% Mounted on
	/dev/mapper/VolGroup00-LogVol00
	                      450G  3.9G  423G   1% /
	/dev/sda1              99M   17M   78M  18% /boot
	tmpfs                1004M     0 1004M   0% /dev/shm
	
	
	  


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