Identify the two ways in which the ZFS Storage Appliance provides data integrity.
A.
fsck(1M) on the ZFS file system is conducted every 5 minutes.
B.
ZFS operations are copy-on-write transactions, so the on-disk state is always valid.
C.
Parallel reads and writes are performed to the same file.
D.
Every block is checksummed in server memory to prevent silent data corruption.
Explanation:
All operations are copy-on-write transactions, so the on-disk state is always valid. There is no need to fsck(1M)
a ZFS filesystem, ever.
Every block is checksummed to prevent silent data corruption, and the data is self-healing in mirrored or RAID
configurations. When one copy is damaged, ZFS detects it (via the checksum) and uses another copy to repair it.