09-07-2005
Lost Data Lost Admin
First time so excuse my ignorance please.
I may not be accurately describing the issue.
I have inherited a small lab mostly SUN V120s.
We lost power and are trying to recover.
Nope no backups...
The primary issue I have is 1 box is an Oracle Server.
It has 2 36Gb harddrives.
I am able to reboot the system but it will not mount a "meta device".
The vfstab file indicates a device mount of /dev/md/dsk/do on /oracle
There are several directories under root (e.g., /U01) that are linked to
/oracle.
Apparently this device according to the /etc/lvm/md.cf file looks like this:
d0 3 1 c1t0d0s4 \
1 c1t1d0s0 \
1 c1t1d0s1
I can see that this 'device' is using partitions from both harddrives
and I think the second harddrive (t1) has been trashed.
I know I am all over the board here, I am fairly new to
Solaris SysAdmin but I figured it couldn't hurt to try this
method for any help I can get.
Much obliged
murphsr
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udfs(7FS) File Systems udfs(7FS)
NAME
udfs - universal disk format file system
DESCRIPTION
The udfs file system is a file system type that allows user access to files on Universal Disk Format (UDF) disks from within the Solaris
operating environment. Once mounted, a udfs file system provides standard Solaris file system operations and semantics. That is, users can
read files, write files, and list files in a directory on a UDF device and applications can use standard UNIX system calls on these files
and directories.
Because udfs is a platform-independent file system, the same media can be written to and read from by any operating system or vendor.
Mounting File Systems
udfs file systems are mounted using:
mount-F udfs -o rw/ro device-special
Use:
mount /udfs
if the /udfs and device special file /dev/dsk/c0t6d0s0 are valid and the following line (or similar line) appears in your /etc/vfstab
file:
/dev/dsk/c0t6d0s0 - /udfs udfs - no ro
The udfs file system provides read-only support for ROM, RAM, and sequentially-recordable media and read-write support
on RAM media.
The udfs file system also supports regular files, directories, and symbolic links, as well as device nodes such as block, character, FIFO,
and Socket.
SEE ALSO
mount(1M), mount_udfs(1M), vfstab(4)
NOTES
Invalid characters such as "NULL" and "/" and invalid file names such as "." and ".." will be translated according to the following rule:
Replace the invalid character with an "_," then append the file name with # followed by a 4 digit hex representation of the 16-bit CRC of
the original FileIdentifier. For example, the file name ".." will become "__#4C05"
SunOS 5.10 29 Mar 1999 udfs(7FS)