This should be pretty simple to sort out but I'm going to have to make a few assumptions as I don't know your metadevice naming standard, you've not posted your md.tab and without CODE tags round the metastat output it's very hard to read.
</grumble>
Righty, that out of the way, lets take a look at your current status and draw some inferences:
I think your current setup is thus:
Mirror devices:
d37
d35
d34
d33
d31
d30
Each mirror has two submirrors, d1x and d2x. Does that sound correct?
Your metadb is on slice 6, correct?
It also looks like the disk that died is c1t1d0, correct?
If all those assumptions are correct, (if not, stop here and clarify) then the normal course of action is to replace the failed disk, then run metareplace -e <mirror device> c1t1d0s<slice number> for each slice of the new disk.
Unfortunately you've already blown away most of your submirrors so we'll need to rebuild - don't worry, that's safe and easy and you won't lose any data Just a little more tedious.
As you've left d31 intact, fix that one by running:
Code:
metareplace -e d31 c1t1d0s1
While that rebuilds, we'll check the metadbs out.
Run
Code:
metadb
to list all the copies of the db. Anything with a W by it (probably everything on c1t1d0s6) is buggered. Provided you still have a few good copies of it, remove the faulty versions of the db. Count how many there are on that device, then run:
Code:
metadb -d c1t1d0s6
.
Then re-add them:
Code:
metadb -a -c <number of copies> c1t1d0s6
.
Now wait here until d31 has finished synching:
Code:
metastat | grep '%'
Wait until it stops showing you a % complete.
As you've already created all your submirror metadevices, the only thing left to do it attach them - One by one (yes really, anything else is _way_ slower). For each remaining mirror in the list, run:
Code:
metattach d3x d2x
I don't know what d38 d39 and d41 are for so I'm ignoring them for now
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Discussion started by: pgirish007
3 Replies
LEARN ABOUT SUNOS
mddb.cf
mddb.cf(4) File Formats mddb.cf(4)NAME
mddb.cf - metadevice state database replica locations
SYNOPSIS
/etc/lvm/mddb.cf
DESCRIPTION
The /etc/lvm/mddb.cf file is created when the metadb(1M) command is invoked. You should never directly edit this file.
The file /etc/lvm/mddb.cf is used by the metainit(1M) command to find the locations of the metadevice state databases replicas. The metadb
command creates the file and updates it each time it is run. Similar information is entered in the /kernel/drv/md.conf file.
Each metadevice state database replica has a unique entry in the /etc/lvm/mddb.cf file. Each entry contains the driver and minor unit num-
bers associated with the block physical device where a replica is stored. Each entry also contains the block number of the master block,
which contains a list of all other blocks in the replica.
Entries in the /etc/lvm/mddb.cf file are of the form: driver_name minor_t daddr_t checksum where driver_name and minor_t represent the
device number of the physical device storing this replica. daddr_t is the disk block address. checksum is used to make certain the entry
has not been corrupted. A pound sign (#) introduces a comment.
EXAMPLES
Example 1: Sample File
The following example shows a mddb.cf file.
#metadevice database location file do not hand edit
#driver minor_t daddr_t device id checksum
sd 152 16 id1,sd@SSEAGATE_JDD288110MC9LH/a -2613
In the example above, the value for daddr_t indicates that the offset from the start of a given partition is 16 disk blocks from the start
of that partition.
FILES
/etc/lvm/mddb.cf
/kernel/drv/md.conf
SEE ALSO mdmonitord(1M), metaclear(1M), metadb(1M), metadetach(1M), metahs(1M), metainit(1M), metaoffline(1M), metaonline(1M), metaparam(1M),
metarecover(1M), metarename(1M), metareplace(1M), metaroot(1M), metassist(1M), metaset(1M), metastat(1M), metasync(1M), metattach(1M),
md.cf(4), md.tab(4), attributes(5), md(7D)
Solaris Volume Manager Administration Guide
SunOS 5.10 8 Aug 2003 mddb.cf(4)
08-18-2008
Just a little more tedious.