Re: Trying to recover data off SATA-to-SCSI external 2TBARRAY

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]



on 10/15/2007 12:42 PM Dan Carl spake the following:
On Monday 15 October 2007, John R Pierce wrote:
Peter Kjellstrom wrote:
On Monday 15 October 2007, Dan Carl wrote:
...
But with errors
 In dmesg have this:
sda: Mode Sense: bf 00 00 08
SCSI device sda: drive cache: write back
sda: unknown partition table
sd 0:0:0:0: Attached scsi disk sda
...
Try "mount -oro /dev/sda /mnt/tmp" (or whatever) or just see if there's
a
superblock there with "tune2fs -l /dev/sda".
he has a hardware raid set of drives originally from a HP/Compaq
SmartArray controller, now connected to a simple non-raid scsi
controller.   sorry, thats not gonna play no way no how.

Since he only mentioned one device on his centos, there are centainly
plausible ways this could work. The original cciss array could have been a
single drive, could have been a raid1, could have been a misunderstood
hwraid
just tunneled through the host adapter as a single driver, etc.
.
The SmartArray doesn't recognize the external array.
So thats why I connected it to a SCSI non-raid controller which does.
lvndiskscan on my Centos server even can tell the size of it.
/dev/sda                 [        2.00 TB]
The external array has it's own built in raid controller.
The Bios the SmartArray said it was a raid 0 2048GB failed.
I not sure why the SmartArray sees it as that because the external array is
configured as a raid 5 with spares.
Im not familar with the SmartArray and don't have another to try.

Is there no way to access the data other than via the SmartArray?

The smartarray sees it as a raid0 with one drive because that is how its bios works. If you attached a single scsi drive to it, you could set it as a single drive and it would show up as a raid0 stripe with one drive.



--
MailScanner is like deodorant...
You hope everybody uses it, and
you notice quickly if they don't!!!!

_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
http://lists.centos.org/mailman/listinfo/centos

[Index of Archives]     [CentOS]     [CentOS Announce]     [CentOS Development]     [CentOS ARM Devel]     [CentOS Docs]     [CentOS Virtualization]     [Carrier Grade Linux]     [Linux Media]     [Asterisk]     [DCCP]     [Netdev]     [Xorg]     [Linux USB]
  Powered by Linux