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PROGRAM
MCA
SEMESTER
6
SUBJECT CODE & NAME
MCA6013-STORAGE MANAGEMENT
Qus:1 Briefly explain the Internal and External DAS Backup
and LAN based, SAN and NAS backup.
Answer: The
simplest backup method is to mount a drive internally within an individual
server or other computer. A drive is embedded in the computer, and software
writes a copy of the primary storage drive's data to the media on a regular
basis. This drive can be almost any
Qus:2 Draw and explain input stack.
Answer:
Data is usually structured in a layered fashion, starting with bits, then
bytes, blocks, volumes and finally files. It is encoded on a media as bits – a
series of 1s and 0s. If the drive only placed a stream of bits on a media, it
would be very difficult to find anything on the media. This layered storage
architecture is known as the I/O stack (Figure 1.1). The I/O stack is the
Qus:3 What is the meaning of Information
Lifecycle Management (ILM)? Explain structured and unstructured information.
Answer: Information Lifecycle Management
(ILM) is a systematic operation for dealing with information assets. Usually
ILM is stated as a systematic plan, which is then used to generate policies.
Qus:4 Describe in brief the components of disk drives.
Answer: Several
types of storage devices are used in storage networking, but by far the most
important is the disk drive. Disk drive technology is as impressive as any
other technology in all of IT, with amazing capabilities and physical
characteristics.
Disk
Qus:5 Explain RAID redundancy with parity.
Also explain the benefits of RAID.
Answer: The
primary structural element of RAID (Redundant Array of Inexpensive Disks) is
the array. RAID allows many individual storing entities to be combined in a
single array that functions as a
Qus:6 Describe virtualized mirroring.
Answer: Figure
also depicts a virtualized volume in a mirrored configuration. As in the
previous example, both primary storage and secondary mirror could have been
built with multiple storage assets. In this example, though, the primary is a
RAID-based LUN of 400 gigabytes capacity, while the secondary mirror is a JBOD.
Because the configuration is mirrored, both the
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08273413412
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