Storage
Elements
Selective Storage
Presentaion
Visible Disks
Logical
Partitioning
Storage
Elements
NTFS Volumes
File
System
Elements
Shadow Copy
Shadow Copies
Elements
(Snapshots)
Cluster Physical
Disk Resources
Cluster Virtual
Server Groups
Cluster
(Network Name)
Elements
(IP Address)
(Cluster Admin)
Fault-tolerant
CIFS/SMB and
NFS File Shares
Figure 1 Storage management process example
Physical storage elements
The lowest level of storage management occurs at the physical drive level. Minimally, choosing the
best disk carving strategy includes the following policies:
•
Analyze current corporate and departmental structure.
•
Analyze the current file server structure and environment.
•
Plan properly to ensure the best configuration and use of storage.
• Determine the desired priority of fault tolerance, performance, and storage capacity.
• Use the determined priority of system characteristics to determine the optimal striping policy
and RAID level.
16
Storage management overview
Physical Disks
RAID Arrays
Logical Drives
Q:
\Engineering
File Folders
\Marketing
Q:
from 02/10/03 09:30 \snapshot.0
from 02/10/03 11:30 \snapshot.1
Q:
\Users
CIFS and NFS
\Sales
File Shares
\Marketing
\Engineering
\Snapshot.0
\Snapshot.1
Single Server
R:
\Users
\Sales
\Engineering
\Marketing
R:
from 02/10/03 09:30 \snapshot.0
from 02/10/03 11:30 \snapshot.1
R:
R:
\\VirtualServerA
IP Addresss 172.1.1.1.
\Sales
\Marketing
\Engineering
File
\Snapshot.0
Sharing
\Snapshot.1
Elements
Cluster Implementation
T:
S:
\Users
\Sales
\Customers
S:
T:
\\VirtualServerA
IP Addresss 172.1.1.2.
\Users
\Customers
U:
U:
gl0044