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Difference between revisions of "VCP4"
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→Configure FC SAN Storage: Minor formating
(→Install VMware ESX/ESXi on local storage: Minor formating) |
m (→Configure FC SAN Storage: Minor formating) |
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* '''Name''' - A ''friendly'' name based on storage type and manufacturer. User changeable, kept consistent across ESX's | * '''Name''' - A ''friendly'' name based on storage type and manufacturer. User changeable, kept consistent across ESX's | ||
* '''Identifier''' - Globally unique, human unintelligible. Persistent through reboot and consistent across ESX's | * '''Identifier''' - Globally unique, human unintelligible. Persistent through reboot and consistent across ESX's | ||
* '''Runtime Name''' - The first path to a device, created by host and | * '''Runtime Name''' - The first path to a device, created by host and not persistent. Of format '''<code>vmhba#:C#:T#:L#''' </code> | ||
** vmhba - Storage Adapter number | ** vmhba - Storage Adapter number | ||
** C - Storage Channel number (software iSCSI uses this to represent multiple paths to same target) | ** C - Storage Channel number (software iSCSI uses this to represent multiple paths to same target) | ||
** T - Target | ** T - Target | ||
** L - LUN (provided by storage system; if only 1 LUN its always L0) | ** L - LUN (provided by storage system; if only 1 LUN its always L0) | ||
'''PSA - Pluggable Storage Architecture''' | '''PSA - Pluggable Storage Architecture''' | ||
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** Path Selection Plugin (PSP) - default assigned by NMP based on the SATP | ** Path Selection Plugin (PSP) - default assigned by NMP based on the SATP | ||
* Multipathing Plugin (MPP) - 3rd party, can run alongside or in addition to Native Multipathing Plugin, | * Multipathing Plugin (MPP) - 3rd party, can run alongside or in addition to Native Multipathing Plugin, | ||
'''PSA operations''' | '''PSA operations''' | ||
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* Handles physical path discovery and removal | * Handles physical path discovery and removal | ||
* Provides logical device and physical path I/O stats | * Provides logical device and physical path I/O stats | ||
'''MPP / NMP operations''' | '''MPP / NMP operations''' | ||
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** Depending on storage device, perform specific actions necessary to handle path failures and I/O cmd retries | ** Depending on storage device, perform specific actions necessary to handle path failures and I/O cmd retries | ||
* Support management tasks, EG abort or reset of logical devices | * Support management tasks, EG abort or reset of logical devices | ||
'''PSP types''' | '''PSP types''' | ||
Default (VMware) PSP Types (3rd party PSP's can be installed)... | Default (VMware) PSP Types (3rd party PSP's can be installed)... | ||
* '''Most Recently Used''' - Good for either Active/Active or Active/Passive | * '''Most Recently Used''' - Good for either Active/Active or Active/Passive | ||
* '''Fixed''' - Can cause path thrashing when used with Active/Passive | * '''Fixed''' - Can cause path thrashing when used with Active/Passive | ||
* '''Round Robin''' - Load balanced | * '''Round Robin''' - Load balanced | ||
'''PSA Claim Rules''' | '''PSA Claim Rules''' | ||
* Used to define paths should be used by a particular plugin module | * Used to define paths should be used by a particular plugin module | ||
'''LUN Masking''' | '''LUN Masking''' | ||