2.5TB Migration from SATA to SSD disks - PostgreSQL 9.2

Hi guys,

I'll be performing a migration on my production master database server,
which is running PostgreSQL 9.2 atm, from SATA disks to SSD disks.
I've got some questions about it, and it would be nice if u guys could
share your experiences/thoughts:

*SCENARIO:*

I currently have one MASTER and two Streaming Replication Slaves servers...

master01
> slave01 (Streaming replication + wal_files)
> slave02 (Streaming replication + wal_files)

...Postgres is mounted on: /var/lib/pgsql/... The SSD disks will be
installed only on my Master server, because my main problem is Writes and
not reads.

The new SSD volume will be mounted on /var/lib/pgsql2/

- The slave02 server will loose the streaming replication connection to
the master, once slave01 becomes the new master a new timeline will be
settled? Will slave02 be able to connect to the slave01 server for
streaming replication?

*MIGRATION OPTIONS:*

*Migration Option 1:* *I know this option will work*

1. Mount the new volume */var/lib/pgsql2/ *on the master01 server
2. Turn slave01 into a master server
3. once I can confirm everything is working fine, I can go to step 4
4. Stop postgres on the master01, start copying the DB using
pg_basebackup from slave02 to master01 (Will have to edit postgres to
use /var/lib/pgsql2/ instead /var/lib/pgsql - Is that possible? Or I'd have
to create a symbolic link?)
5. Start postgres on master01 server and check if all goes well as
streaming replication server (Will test it for days)
6. Turn master01 into a master server and I'll have to re-copy the DB
into slave01 to make it a streaming replication server again

*Migration Option 2:* *I don't know if this is possible - IS THIS
POSSIBLE????*

1. Mount the new volume */var/lib/pgsql2/* on the master01 server
2. Stop postgres on the server (I won't stop postgres on the slave so
the users will be able to use the server as read-only)
3. Copy the data from /var/lib/pgsql/ to /var/lib/pgsql2/
4. Configure postgres to start using the new volume(/var/lib/pgsql2/)

What do you guys think? Is option possible? if so it would be much easier :)
Thanks!