Compaq Infortrend Manuale Utente
Advanced Configurations
9-1
Advanced Configurations
This chapter aims to discuss the advanced options for configuring
and maintaining a RAID system. Each function will be given a brief
explanation as well as a configuration sample. Terminal screens will
be used in the configuration samples. Some of the operations
require basic knowledge of RAID technology and the practice of
them is only recommended for an experienced user.
and maintaining a RAID system. Each function will be given a brief
explanation as well as a configuration sample. Terminal screens will
be used in the configuration samples. Some of the operations
require basic knowledge of RAID technology and the practice of
them is only recommended for an experienced user.
9.1
Fault Prevention
S.M.A.R.T.
With the maturity of technologies like S.M.A.R.T., drive failures can
be predictable to a certain degree. Before S.M.A.R.T., being
recurrently notified of drive bad block reassignments may be the
most common omen for a drive about to fail. In addition to the
S.M.A.R.T.-related functions as will be discussed later in this section,
a system administrator can also choose to manually perform “Clone
Failing Drive” to a drive which is about to fail. System
administrators can decide when to replace a drive showing
symptoms of defects by a healthy drive. A system administrator
may also replace any drive at will even when the source drive is
healthy.
be predictable to a certain degree. Before S.M.A.R.T., being
recurrently notified of drive bad block reassignments may be the
most common omen for a drive about to fail. In addition to the
S.M.A.R.T.-related functions as will be discussed later in this section,
a system administrator can also choose to manually perform “Clone
Failing Drive” to a drive which is about to fail. System
administrators can decide when to replace a drive showing
symptoms of defects by a healthy drive. A system administrator
may also replace any drive at will even when the source drive is
healthy.
The “Clone Failing Drive” can be performed under the following
conditions:
conditions:
1.
Replacing a failing drive either detected by S.M.A.R.T. or notified
by the controller.
by the controller.
2.
Manually replacing and cloning any drive with a new drive.
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