Adaptec 1744 Guía de instalación descargar pdf (Pagina 62)

Section Four

NetWare 286 v2.15 Installation

4.2.2 Duplexing

Disk duplexing is when two host adapters are installed in a single file server, each with

its own disk. These disk drives contain the same data. This ensures that

either one disk

one host

adapt~r

fails, the system will continue.

386/.:186

•

Disks

contain

same

data

• Host adapters

different

port

address/IRQ/DMA

• Driver must

loaded

twice

Mirroring and duplexing are both referred to as "mirroring" in the NetWare operating

system. During the "Installation" part

NetWare, the user will

prompted whether or

not to "Establish Mirror Pair"

two hard disk drives are detected that are

nearly the

same capacity. These drives may

on the same host adapter (mirroring)

on separate

host adapters (duplexing). Therefore, the procedure to mirror or to duplex is exactly the

same as far as NetWare is concerned. The only difference is the hardware setup (one vs.

two host adapters).

The following hardware considerations should

be taken into account when preparing the

AHA-1540/1542/1640/1740/1744 disk drives for duplexing.

- The NetWare partitions should

nearly the same size. NetWare will not

allow partitions that vary greatly in size to

mirrored. Consult the

NetWare Installation manual for

.the

limitations.

- Each drive should

be connected to its own host adapter. Each host adapter

should have its own SCSI cable.

ASW-1440

4-14

adoptee

1 2 ... 57 58 59 60 61 62 63 64 65 66 67 ... 79 80

Comentarios a estos manuales

Sin comentarios

Adaptec 1744 Guía de instalación Pagina 62

Comentarios a estos manuales

Relacionado con productos y manuales para Software Adaptec 1744