recover metadata configuration

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hi all,

I tried to UPDATE an existing solaris machine that had 4 disks. 0/1
the usual
and 3/4 configured as a metadisk.
Now during installation the question "update" or "install" wasn't
asked and the result
is that disks 0/1 are overwritten. So I lost the config data of disks
3/4

is it possible from the output of prtvtoc of disks3/4 to restore the
metadevice?

# prtvtoc /dev/rdsk/c1t3d0s2
* /dev/rdsk/c1t3d0s2 partition map
*
* Dimensions:
*     512 bytes/sector
*     424 sectors/track
*      24 tracks/cylinder
*   10176 sectors/cylinder
*   14089 cylinders
*   14087 accessible cylinders
*
* Flags:
*   1: unmountable
*  10: read-only
*
*                          First     Sector    Last
* Partition  Tag  Flags    Sector     Count    Sector  Mount Directory
       2      5    00          0 143349312 143349311
       5      0    00          0  63996864  63996863
       6      0    00   63996864  79281216 143278079
       7      0    00  143278080     71232 143349311


thanks in advance for all answers or pointers to.
0
Reply getridofthespam (120) 8/31/2011 4:05:24 PM

adirtymindisajoyforever <getridofthespam@yahoo.com> wrote:
> hi all,
> 
> I tried to UPDATE an existing solaris machine that had 4 disks. 0/1
> the usual
> and 3/4 configured as a metadisk.
> Now during installation the question "update" or "install" wasn't
> asked and the result
> is that disks 0/1 are overwritten. So I lost the config data of disks
> 3/4
> 
> is it possible from the output of prtvtoc of disks3/4 to restore the
> metadevice?
> 
> # prtvtoc /dev/rdsk/c1t3d0s2
> * /dev/rdsk/c1t3d0s2 partition map

how was the data layed out? were you using mirrors or something simple like that?

do the metastat and metadb still work?
0
Reply presence (537) 8/31/2011 7:07:05 PM


On 31 aug, 21:07, Cydrome Leader <prese...@MUNGEpanix.com> wrote:
> adirtymindisajoyforever <getridofthes...@yahoo.com> wrote:
> > hi all,
>
> > I tried to UPDATE an existing solaris machine that had 4 disks. 0/1
> > the usual
> > and 3/4 configured as a metadisk.
> > Now during installation the question "update" or "install" wasn't
> > asked and the result
> > is that disks 0/1 are overwritten. So I lost the config data of disks
> > 3/4
>
> > is it possible from the output of prtvtoc of disks3/4 to restore the
> > metadevice?
>
> > # prtvtoc /dev/rdsk/c1t3d0s2
> > * /dev/rdsk/c1t3d0s2 partition map
>
> how was the data layed out? were you using mirrors or something simple like that?
>
> do the metastat and metadb still work?

disk 4 was the mirror of disk 3.
meta* commands do not work anymore, config files are gone due to new
installation.

0
Reply getridofthespam (120) 9/1/2011 6:11:50 AM


if mirror was there means u dont have to worry at all.
simply rebuild ur mirrors .

if RAID 0 or RAID 5 is there means u will lose data.

offcourse meta* cmds will not work as there are no metadevices configured yet

so configure mirrors accordingly and u r good to go with new config.
0
Reply paroksha.sun (22) 9/5/2011 7:31:16 AM

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