Storage models
Physical storage is modeled by using derived classes from BMC_media, such as BMC_DiskDrive, BMC_TapeDrive, BMC_CDROMDrive, and BMC_FloppyDrive.
Physical server with an IBM hard drive directly attached to it
Computers access storage through storage devices connected directly to the computer by using I/O ports and storage connected through a network.
The following diagram shows an example of a server with a hard drive:
Removable media, such as floppy disks, compact disks, flash memory cards, external storage devices, and USB flash drives can be modeled by using the BMC_DiskDrive class with the appropriate value set in the MediaTypeattribute (0).
NAS and SAN storage
The following are common storage architectures:
- Network Attached Storage (NAS)
- Storage Area Networks (SAN)
Server connected to a NAS device with logical disks
A NAS device, such as NetApp storage system, is modeled by using the following topology:
BMC_ComputerSysteminstance is modeled withPrimaryCapability=Storage- Storage components are modeled by using
BMC_LogicalDiskinstances
For a NAS device, volumes are modeled by using BMC_StorageVolume instances.
Server connected to a SAN storage array through a SAN switch by using FC
SAN uses Fibre Channel (FC) protocol and FC switches to transfer data between computers and disk drives. Disk drives in a SAN are stored in a dedicated storage device called a disk array or SAN storage array. All servers connect to the storage device over a high speed network by using an FC protocol.
A SAN storage array is modeled by using a BMC_ComputerSystem class instance with PrimaryCapability=Storage. It has raw storage volumes and disks attached to it. Raw storage volumes are allocated to servers on SAN storage arrays. These are accessed through SAN switches, also modeled as BMC_ComputerSystem class instances with PrimaryCapability=SANSwitch.
Comments
Hi,
How can we find the details like storage ID,storage array name,storage type,storage controller id and storage port id?
Hi Deepthi,
Thank you for your query. Will check with an SME and respond at the earliest.
Regards,
Maithili
Hi Deepthi,
In BMC Discovery, you could check the Viewing a storage device page. For example, on the Viewing a storage device page, you can see there is an infrastructure section, in which there is a lot of information such as Storage type. You can find information on that and related Viewing storage pages.
Only the information that has been discovered from your storage systems is displayed. The detail of discovery depends on many variables, such as the level of credentials used, and the configuration of the storage system/device/array.
Please let me know if you're looking for additional information related to BMC CMDB.
Regards,
Maithili
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