disksuite with no free partitions

[csgonan]

I have a live server and I want to mirror the root drive (c1t0d0) to drive 2 (c1t2d0). I have maybe one free slice. I've read that I can take from swap to use for the replicas?

1) How is that done?

2) If I have no free partitions, how can I use swap for both replicas?

3) Can this be done while the system is live and running?

Thank you

 

[KenCunningham]

There is some information here:

http://www.geocities.com/arndike/sds_howto.html

though this:

http://www.unixzone.dk/unix/category/blah-blah/

seems to indicate that Solaris 10 doesn't (easily) allow this.

In either case I'd recommend single user mode and a good backup.

I want to be good, is that not enough?

 

[csgonan]

Do you know how I could test failover? I was thinking of downing the root drive but I hate pulling drives (even if hot swappable). Is there a commmand to down a drive? Do you know other ways to test failover?

Thanks

 

[dandan123]

If it's a scsi drive you can do a cfgadm -f -s unconfigure <drive> to down the drive.

Do a cfgadm -al to see the drive path.

If it's a fiber drive you will have to do a luxadm to down it.

 

[csgonan]

I was testing the removal of the boot disk with the cfgadm command and got the following error. I installed patches 110912-05 and 117702-01 prior to doing this as they were related.

Command I entered: cfgadm -c unconfigure c0::dsk/c0t0d0

Error: cfgadm: hardware specific failure: failed to unconfigure SCSI device: I/O error

# cfgadm
Ap_Id Type Receptacle Occupant Condition
c0 scsi-bus connected configured unknown
c1 scsi-bus connected unconfigured unknown
# cfgadm -al
Ap_Id Type Receptacle Occupant Condition
c0 scsi-bus connected configured unknown
c0::dsk/c0t0d0 disk connected configured unknown
c0::dsk/c0t1d0 disk connected configured unknown
c0::dsk/c0t6d0 CD-ROM connected configured unknown
c1 scsi-bus connected unconfigured unknown