Home » Pruebas de Disco sobre FCP basado en SCST

Pruebas de Disco sobre FCP basado en SCST

Para poner a prueba  el disco de fibra creado en el anterior post vamos a disponer de un servidor con Windows Server 2008 y una HBA Emulex LP-10000DC  con drivers en modo Initiator. El escenario creado para esta prueba es el siguiente:

Resumiendo: El servidor Centos con kernel vanilla preparado con proyecto SCST y una HBA con drivers en modo target es configurado para proporcinar un disco virtual(vdisk) a la SAN.  El disco virtual es un fichero que a través del módulo SCST es ofrecido por fibra óptica ( HBA operando en modo target). Por otro lado disponemos de un servidor con un sistema operativo Windows Server 2008  SP1, que dispone de una HBA operando en modo Initiator. Las dos HBAs están conectadas a una SAN y se ha realizado un zonning en el switch de fibra de forma que el Initiator pueda ver la lun correspondiente al vdisk.

Comprobación: Desde el servidor Windows se ve correctamente el disco de fibra creado, desde su administrador de dispositivos:

Aparecen dos discos tipo "disk drives" debido a que la HBA es de dos puertos y están zoneados al mismo disco. Hemos operado con sólo uno de los discos y lo hemos inicializado sin problemas:

 

Desde el servidor Centos comprobamos las sesiones en el target por los initiators (son dos, uno por cada puerto de la HBA Emulex usada):

 

# cat /proc/scsi_tgt/sessions

Target name          Initiator name                                Group name                   Active/All Commands Count

qla2x00tgt           10:00:00:00:c9:4f:56:a0                       Default                             0/0

qla2x00tgt           10:00:00:00:c9:4f:56:9f                       Default                             0/0

 

Inicialmente, provocando simultáneas I/Os sobre la lun (copia,  lectura y borrado de ficheros) se obtienen resultados  satisfactorios.

Por otro lado, ya  estamos preparando nuestro próximo proyecto …. la emulación de una librería virtual de cintas (VTL) sobre FC basado en el proyecto mhvtl que  usamos en nuestro laboratorio en su versión para iSCSI.
 

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  14. […] sobre fibra óptica. Su implementación está basada en los trabajos ya publicados sobre mhVTL y SCST.  Siguiendo con la configuración SAN del post anterior, hemos conseguido emular una librería […]

  15. […] El el siguiente post pondremos a prueba nuestro disco creado, usando un initiator de fibra sobre un … […]

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