Technical data

SunOS 5.5 Devices mlx(7D)

Hot Plugging Other than the ‘‘hot replacement’’ of disk drives, which is described in the

manufacturer’s user’s guide, the Mylex DAC960 series do not support ‘‘hot-plugging’’

(adding or removing devices while the system is running) unless the ﬁrmware version of

the adapter is 1.22 or 1.23. Otherwise, in order to add or remove devices you must shut

down the system, add or remove devices, reconﬁgure the host bus adapter using the

conﬁguration utility provided by the manufacturer, and then reboot your system.

SCSI Target IDs When settingup the device SCSI target IDs, note that there is a limitation on the choice of

target ID numbers. Assuming the maximum number of targets per channel on the partic-

ular model of Mylex or IBM host bus adapter is MAX_TGT (see the manufacturer’s user’s

manual), the SCSI target IDs on a givenchannel should range from 0 to (MAX_TGT − 1).

Note that target SCSI IDs on one channel can be repeated on other channels.

Example 1:

Mylex DAC960-5 model supports a maximum of four targets per channel, i.e.,

MAX_TGT = 4. Therefore, the SCSI target IDs on a given channelshould range

from 0 to 3.

Example 2:

Mylex DAC960-3 model supports a maximum of seven targets per channel, i.e.,

MAX_TGT = 7. Therefore, the SCSI target IDs on a given channelshould range

from 0 to 6.

For the IBM DMC960, the maximum targets per channel are 7. Therefore, the

SCSI target IDs on a given channel should range from 0 to 6.

modiﬁed 24 May 1995 7D-213