Dell PowerVault MD3000i Hardware Owner's Manual - Page 28

Physical Disks, array. If the RAID controller module detects unsupported physical disks,

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All virtual disks in a disk group support the same RAID level. The RAID enclosure supports up to 256 virtual disks (minimum size of 10 MB each) that can be assigned to host servers. Each virtual disk is assigned a Logical Unit Number (LUN) that is recognized by the host operating system. Physical Disks Only Dell-supported 3.0-Gbps SAS physical disks are supported in the storage array. If the RAID controller module detects unsupported physical disks, it marks the disk as unsupported and the physical disk becomes unavailable for all operations. NOTE: The MD3000i enclosure must contain at least two physical disks for proper operation. This is necessary because the physical disks are used to store configuration information. Physical Disk States The RAID controller module recognizes the physical disk states (mode and status reported in MD Storage Manager) described in Table 2-1. Table 2-1. RAID Controller Physical Disk States Status Optimal Optimal Optimal Optimal Mode Description Physical Disk Status LED Indication Unassigned The physical disk in the indicated Steady Green slot is unused and available to be configured. Assigned The physical disk in the indicated Steady Green slot is configured as part of a disk group. Hot Spare Standby The physical disk in the indicated Steady Green slot is configured as a hot spare. Hot Spare In Use The physical disk in the indicated Steady Green slot is in use as a hot spare within a disk group. 28 Using Your RAID Enclosure

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Using Your RAID Enclosure
All virtual disks in a disk group support the same RAID level. The RAID
enclosure supports up to 256 virtual disks (minimum size of 10 MB each) that
can be assigned to host servers. Each virtual disk is assigned a Logical Unit
Number (LUN) that is recognized by the host operating system.
Physical Disks
Only Dell-supported 3.0-Gbps SAS physical disks are supported in the storage
array. If the RAID controller module detects unsupported physical disks, it
marks the disk as unsupported and the physical disk becomes unavailable for
all operations.
NOTE:
The MD3000i enclosure must contain at least two physical disks for proper
operation. This is necessary because the physical disks are used to store
configuration information.
Physical Disk States
The RAID controller module recognizes the physical disk states (
mode
and
status
reported in MD Storage Manager) described in Table 2-1.
Table 2-1.
RAID Controller Physical Disk States
Status
Mode
Description
Physical Disk
Status LED
Indication
Optimal
Unassigned
The physical disk in the indicated
slot is unused and available to be
configured.
Steady Green
Optimal
Assigned
The physical disk in the indicated
slot is configured as part of a disk
group.
Steady Green
Optimal
Hot Spare Standby
The physical disk in the indicated
slot is configured as a hot spare.
Steady Green
Optimal
Hot Spare In Use
The physical disk in the indicated
slot is in use as a hot spare within
a disk group.
Steady Green