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Operating Systems Solaris SVM Creation
# 1  
Old 11-21-2011
SVM Creation


I recently patched my Solaris 10 box and found out that few of the apps are not working. Fortunately, I had detached the mirroring prior to patching, so I just booted into my secondary disk [which was detached prior to patching] and found that my apps are working....

The problem is this was way back in last month....see below :

40 days
df -h /
Filesystem             size   used  avail capacity  Mounted on
/dev/dsk/c0t1d0s0       18G   7.6G   9.9G    44%    /

d5               m   5GB d15
    d15          s   5GB c0t0d0s4       : - Patched disk

df -h has /dev/md/dsk/d5 mounted on /usr1
My concern is whatever the work that I had done for the past 40 days on /usr1 will vanish if I do :

metaclear d5
metaclear d15

metainit -f d15 1 1 /dev/dsk/c0t1d0s5     : - changed to secondary disk which is actually primary now as it is not patched and my apps are working fine on c0t1d0s0.

metainit  d5 -m d15

I have created the mirroring succcessfully with root as well as swap with unpatched disk as primary disk and patched disk as secondary and attached the mirrirs...

The only problem that I am facing is with the md d5 ?Smilie

Any suggesstions ?

Last edited by pludi; 11-21-2011 at 03:50 PM..
# 2  
Old 11-21-2011
It is a bit confusing... To which disk (slice) all the changes during those 40 days were written?
# 3  
Old 11-21-2011
Sorry ! But, I realised that it could confuse..

c0t0d0 is the patched disk.
c0t1d0 is unpatched disk and I have booted through this last month.

Currently metastat -p output is

d13              m  7.0GB d23
    d23          s  7.0GB c0t0d0s3  : - /var
d11              m  4.0GB d21
    d21          s  4.0GB c0t0d0s1   : - swap
d10              m   18GB d20
    d20          s   18GB c0t0d0s0    : - / 
d5               m   5GB d15
    d15          s   5GB c0t0d0s4     : - /usr1

$ df -h
Filesystem             size   used  avail capacity  Mounted on
/dev/dsk/c0t1d0s0       18G   7.6G   9.9G    44%    /
/dev/dsk/c0t1d0s3      6.9G   4.8G   2.0G    71%    /var
/dev/md/dsk/d5          5G   3G    2G    70%    /usr1

/dev/md/dsk/d601 12G 3.9G 7.8G 34% /u01

I forgot to make changes in vfstab for md device d5 when I backout the patches, so df -h has /dev/md entry with metastat -p output showing that the mirror has been cleared for d5. Hope that it does makes sense now !

Last edited by pludi; 11-21-2011 at 03:50 PM..
# 4  
Old 11-21-2011
So you want to move /usr1 from c0t0d0s4 to c0t1d0s4 (keeping all the data that is currently on c0t0d0s4)?
# 5  
Old 11-21-2011
That is correct ! Keeping all tha data intact including the changes that have been made for the past 40 days..
# 6  
Old 11-21-2011
Then you can do this (make a backup first of courseSmilie):
metainit -f d25 1 1 /dev/dsk/c0t1d0s5
metattach d5 d25
(wait for resync)
metadetach d5 d25
metaclear d25
(unmount /usr1 and mount it directly from c0t1d0s5 slice)

# 7  
Old 11-21-2011
Thanks !!

I thought of that initially but was expecting a second thought so posted here Smilie !

Appreciate your time and help...

---------- Post updated at 03:10 PM ---------- Previous update was at 03:01 PM ----------

Here's onemore thing which is confusing meSmilie

even if I sync the slices back again and detach I guess I am going to run into problem..

My /usr1 has all the apps configurations that was broke with If I do

metainit -f d25 1 1 /dev/dsk/c0t1d0s5 
metattach d5 d25 (wait for resync) 
metadetach d5 d25 
metaclear d25

I will be ultimately copying the broke configs onto my unbroke contents.

What about this then ?Smilie

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