Reading crashed SCSI disk

[Olivier Nicole]

Hi,

Last week my mail server disk crashed. I restarted the machine with
spare hard disk and previous night backup, but I have no backup for
the emails received during the last day.

I cannot do a low level SCSI verify, it may be that all spare sectors
have been reallocated. I cannot run an fsck.

I am wondering if there is a way to read the physical blocks (those
that are readable) and save the data, from that I could be able to
rebuild some of the mailboxes.

Best regards,

Olivier