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Drive name formats

Each drive has a name that differentiates it from all other drives. Drive names have different formats, depending on the connection type (FC or SAS) and how the drive is attached.

The following table shows the various formats for drive names, depending on how they are connected to the storage system.
Note: For internal drives, the slot number is zero, and the internal port number depends on the system model.
Drive connection Drive name Example
SAS, direct-attached <slot><port>.<shelfID>.<bay>

The drive in shelf 2, bay 11, connected to onboard port 0a is named 0a.2.11.

The drive in shelf 6, bay 3, connected to an HBA in slot 1, port c, is named 1c.6.3.

SAS, direct-attached in multi-disk carrier disk shelf <slot><port>.<shelfID>.<bay>L<carrierPosition> Carrier position is 1 or 2.
SAS, direct-attached, for systems running Data ONTAP-v <slot><port>.<ID> The third virtual disk connected to the first port is named 0b.3. The second virtual disk connected to the third port is named 0d.2.

The range of ports is b through e, and the range of disks is 0 through 15.

SAS, bridge-attached (FibreBridge, used for MetroCluster configurations) <slot><port>.<loopID>L<LUN> The drive with LUN 2 behind the bridge connected to port a in slot 3, loop ID 125, is named 3a.125L2.
SAS, bridge-attached through a switch (FibreBridge, used for MetroCluster configurations) <switch_name>:<switch_port>.<loopID>L<LUN> The drive with LUN 5 behind the bridge connected to port 2 of switch brcd44, loop ID 126, is named brcd44:2.126L5.
FC, direct-attached <slot><port>.<loopID> The drive with loop ID 19 (bay 3 of shelf 1) connected to onboard port 0a is named 0a.19.

The drive with loop ID 34 connected to an HBA in slot 8, port c is named 8c.34.

FC, switch-attached <switch_name>.<switch_port>.<loopID> The drive with loop ID 51 connected to port 3 of switch SW7 is named SW7.3.51.

For information about determining the LUN for drives using the FibreBridge connection architecture, see Configuring a MetroCluster system with SAS disk shelves and FibreBridge 6500N bridges.