UNIX for Advanced & Expert Users

What is the quickest way to get partition / slices / hard disk / controller information regarding meta devices (md) on solaris 8.

Thanks in advance.

Try the metastat command (in /usr/sbin on Solaris 8) - will give the following type of output:

% metastat|more
d1: Mirror
Submirror 0: d10
State: Okay
Submirror 1: d11
State: Okay
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 4097331 blocks

d10: Submirror of d1
State: Okay
Size: 4097331 blocks
Stripe 0:
Device Start Block Dbase State Hot Spare
c0t0d0s0 0 No Okay


d11: Submirror of d1
State: Okay
Size: 4097331 blocks
Stripe 0:
Device Start Block Dbase State Hot Spare
c0t1d0s0 0 No Okay

That plus your /etc/vfstab and df command should give you anything you are looking for.

I need more information about hard disk slices included in meta device along with slices .

Further I want to know how difficult it is to re-create a meta device . I know I'll have to take
1. Backup of all data.
2. Need to check about application installation.
3. Application specific administration.

Are there any guidelines to do this.

I am planning to implement RAID 5 out of stripe . I know my space availability will get reduced and disk IO time also will increase leading to slower updates.

Please don't post email addresses - see rule 10.

As far as re-creating a metadevice, see Docs.sun.com Disksuite 4.2.1 (or the appropriate version you are running).

I have removed the email . I did not know about rule 10 while writing email. In future , I'll not write emails

BTW thanks for pointer to disksuite 4.2.1 . It's very useful.

Regards