IBM System Storage DS3000, Programming Manual

Page: 423 / 652

criticalThreshold=(criticalThresholdValue|default) |
criticalPriority=(highest|high|medium|low|lowest) |
backgroundPriority=(highest|high|medium|low|lowest) |
degradedPriority=(highest|high|medium|low|lowest) |
securityType=(none|capable|enabled) |
driveMediaType=(hdd | ssd | allMedia | unknown) |
T10PI=(none|enabled)]
The
diskDrives
parameter is a list of the disk drives that you want to use for the disk pool. Enter the
Enclosure ID and the slot ID of each drive that you want to use. For high capacity drive Enclosures that
have drawers to hold the disk drives also use the drawer number. For high capacity drive enclosures, the
sequence of the location identifiers is
drive Enclosure, drawer, slot
. Enclose the list in parentheses,
separate the Enclosure ID value, drawer ID value, and the slot ID value of a drive with a comma, and
separate each Enclosure ID, drawer ID, and slot ID set with a
space
. This example shows you how to
enter enclosure ID values and slot ID values for low capacity drive enclosures:
(1,1 1,2 1,3 1,4 1,5)
This example shows you how to enter enclosure ID values, drawer ID values, and slot ID values for high
capacity drive enclosures:
(1,1,1 1,2,3 1,3,5 1,4,6 1,5,8)
An example of Creating logical drives with User-Assigned disk drives:
c:\...\smX\client>smcli 123.45.67.88 123.45.67.89
-c “create diskpool diskDrives=(1,1,1 1,1,2 1,2,3 ...
2,1,10, 2,2,11)
userLabel=”Engineering_1” warningthreshold=65
criticalthreshold=75 criticalpriority=high
backgroundpriority=medium degradedpriority=high
securitytype=enabled drivemediatype=hdd
T10PI=enabled;”
This command creates a disk pool with these features:
v
The list of disk drives represents the disk drives found in a high capacity drive Enclosure.
v
The name of the disk pool is
Engineering_1
. The disk pool name can be any combination of
alphanumeric characters, hyphens, and underscores. The maximum length of the disk pool name is 30
characters. You must enclose the disk pool name with double quotation marks (“ ”).
v When you assign disk drives to a disk pool, you do not need to use the driveCount parameter.
v
When the disk pool consumes
65 percent
of its capacity, a warning alert will be posted. The default
value is
50 percent
. The
warningthreshold
parameter must always be set to a value lower than the
criticalthreshold
parameter.
v
When the disk pool consumes
75 percent
of its capacity, a critical alert will be posted. The default
value is
85 percent
.
v
The priority for reconstruction operations for critical events on the disk pool is set to
high
. If a
condition, such as a two failed disk drives occurs, the storage management software will make the
reconstruction of the data a high priority.
v
The priority for background operations on this disk pool is set to
medium
, meaning that background
operations (such as reconstruction or formatting) equally share resources with other storage subsystem
operations.
v The priority for correcting the disk pool after it has entered a degraded state is set to high . If a
condition, such as a failed drive occurs, the storage management software will make the correction of
the condition a high priority.
v
The
securitytype
parameter is enabled, so the storage management software will use only disk drives
that are configured to be Full-Disk Encryption (FDE)s.
v
The type of drive to be used is a hard drive (hdd).
v
The disk pool will use only disk drives with protected data capability.
Chapter 4. Configuring a Storage Subsystem
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