Which statement is true about the state database and its replicas?

A database administrator requests additional disk space for database scratch space. The administrator requires the space be protected from a disk failure and wants the space to have a good response time. The database will be writing 70 percent of the time to this file system and reading 30 percent of the time. Which RAID level most efficiently satisfies these requirements?

A user requires three file systems of the same size. These file systems must remain online after a single disk failure. The user is NOT concerned about read or write performance. The user provides a disk array with 10 drives in it and requires the maximum amount of usable space from this array. Which configuration satisfies all of the user’s requirements?

Given the following system:
# metadb -s clones -i
flags first blk block count
a m luo 16 8192 /dev/dsk/c4t1d0s7
r – replica does not have device relocation information o – replica active prior to last mddb configuration change u – replica is up to date l – locator for this replica was read successfully
c – replica’s location was in /etc/lvm/mddb.cf
p – replica’s location was patched in kernel
m – replica is master, this is replica selected as input W – replica has device write errors
a – replica is active, commits are occurring to this replica M – replica had problem with master blocks
D – replica had problem with data blocks
F – replica had format problems
S – replica is too small to hold current data base
R – replica had device read errors
# metastat -ac
clones/d30 p 5.0GB c4t1d0s0
clones/d20 p 5.0GB c4t1d0s0
clones/d10 p 5.0GB c4t1d0s0
What are two features of Solaris Volume Manager software configured on this system? (Choose two.)

You are configuring a new system. You want the system to be able to boot unattended, even if its boot disk fails. You decide to mirror the root file systems using Solaris Volume Manager software. There is one state database replica per drive. What is the minimum number of drives on which you need to place state database replicas to accomplish this?