Single Server Cluster Implementation
Physical Disks
Logical Drives
RAID Arrays
Selective Storage
Presentaion
Visible Disks
Partitioning
NTFS Volumes
Shadow Copies
(Snapshots)
Cluster Physical
Disk Resources
Fault-tolerant
CIFS/SMB and
NFS File Shares
Cluster Virtual
Server Groups
(Network Name)
(IP Address)
(Cluster Admin)
File Folders
Storage
Elements
Logical
Storage
Elements
File
System
Elements
Shadow Copy
Elements
Cluster
Elements
File
Sharing
Elements
CIFS and NFS
File Shares
\Engineering
\Marketing
\Users \Sales \Engineering
\Marketing
\Users \Sales \Customers
from 02/10/03 09:30 \snapshot.0
from 02/10/03 11:30 \snapshot.1
from 02/10/03 09:30 \snapshot.0
from 02/10/03 11:30 \snapshot.1
Q:
Q:
Q:
R:
R:
R:
R:
T:
S:
S:
U:
U:
\Users
\\VirtualServerA
IP Addresss 172.1.1.1.
\\VirtualServerA
IP Addresss 172.1.1.2.
\Sales
\Marketing
\Engineering
\Snapshot.0
\Snapshot.1
\Sales
\Users
\Customers
\Marketing
\Engineering
\Snapshot.0
\Snapshot.1
T:
gl0044
Figure 4 Storage management process example
Physical storage e lements
Thelowestlevelofstoragemanagementoccursatthephysicaldrivelevel.Minimally,choosingthebest
disk carving strategy includes the following policies:
• Analyze current corporate and de partmental structure.
• Anal
yze the current file server structure and environm ent.
• Plan properly to ensure the best c onfiguration and use of storage.
• Determine the desired priority of fault tolerance, performance, and storage capacity.
•Use
the determined p riority of system characteristics to determine the optimal striping policy
and RAID level.
• Include the appropriate number of physical drives in the arrays to create logical stora g e elem ents
of desired sizes.
30 Storage management overview
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