Solaris

Hi,
need some help.
I’m new to solaris and trying to find out how to mirror a data disk (not the root disk).
In AIX it is easy but with solaris 5.8 I don’t find my way even with the SUN docs (disk/suide is installed).


What is behind is I want to migrate a disk from 1 storage system to another.


Can somebody give me a step by step guide.

THX in advance Chris

I haven't done that in a while, so I'd strongly suggest you test this somewhere before you do anything to your production stuff. Maybe someone else from the forum can correct me?

I'm not sure if you need empty slices (can be 10mbs) in each disk for your state metadatabases if you are mirroring non-root disks.
I'll assume the disk you want to mirror has one partition

Code:

# Create metadatabases in your disks
/usr/sbin/metadb -c 3 -a -f c1t0d4s0 c1t0d5s0  ## controller, target, disk, slice numbers are there for illustration purposes only
# Check them
/usr/sbin/metadb -i
# Create submirrors, attach them.
/usr/sbin/metainit -f d51 1 1 c1t0d4s0  ## d51 is the name of the 1st submirror
/usr/sbin/metainit d52 1 1 c0t1d5s0     ## d52 is the name of the 2nd submirror
/usr/sbin/metainit d50 -m d51             ## d50 is the name of the mirror
/usr/sbin/metattach d50 d52              
#Edit /etc/vfstab. Your mount point could  be whatever the mount for the original disk was. Sample vfstab entry
/dev/dsk/md/d50  /dev/rdsk/md/d50  /mountpoint  ufs  1  yes  -

Again, please test this in non-production, non-critical disks before you do anything in your production environment.

Hi THX.
I will test this.
1 more question. Do I have to do this for all slices of a disk.

Ok i tried this and it runs.

Only problem is that I not mount the mirror!!
Any idear????


metastat d60
d60: Mirror
Submirror 0: d61
State: Okay
Submirror 1: d62
State: Okay
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 17139840 blocks

d61: Submirror of d60
State: Okay
Size: 17139840 blocks
Stripe 0:
Device Start Block Dbase State Hot Spare
c3t0d1s6 3840 Yes Okay


d62: Submirror of d60
State: Okay
Size: 17141760 blocks
Stripe 0:
Device Start Block Dbase State Hot Spare
c3t1d14s6 3840 Yes Okay


# mount /dev/md/dsk/d60 /mir1
mount: /dev/md/dsk/d60 is not this fstype.

It's /dev/dsk/md/d60, not dev/md/dsk/d60

'Not working think the directory is right see output:

# mount /dev/dsk/md/d60 /mir1
mount: /dev/dsk/md/d60 or /mir1, no such file or directory


# ls /dev/dsk/md/
/dev/dsk/md/: No such file or directory


# ls /dev/md/dsk/
d0 d107 d116 d125 d2 d29 d38 d47 d56 d65 d74 d83 d92
d1 d108 d117 d126 d20 d3 d39 d48 d57 d66 d75 d84 d93
d10 d109 d118 d127 d21 d30 d4 d49 d58 d67 d76 d85 d94
d100 d11 d119 d13 d22 d31 d40 d5 d59 d68 d77 d86 d95
d101 d110 d12 d14 d23 d32 d41 d50 d6 d69 d78 d87 d96
d102 d111 d120 d15 d24 d33 d42 d51 d60 d7 d79 d88 d97
d103 d112 d121 d16 d25 d34 d43 d52 d61 d70 d8 d89 d98
d104 d113 d122 d17 d26 d35 d44 d53 d62 d71 d80 d9 d99
d105 d114 d123 d18 d27 d36 d45 d54 d63 d72 d81 d90
d106 d115 d124 d19 d28 d37 d46 d55 d64 d73 d82 d91

Oops, sorry. You are right. It is /dev/md...
What version of Disksuite are you using? What Sun architecture?
I remember such errors having to do with the block size of the file system.