ArrayMasStor J Series User’s Manual
I I I
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Do not turn on and off in a rapid succession manner. Leave at least 15 seconds
between turning on and off. This may avoid damage or malfunction. The HDD
requires about 15 seconds to completely stop after turning off the ArrayMasStor.
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Insert to push the drive unit firmly. A loose connection may damage the
ArrayMasStor or cause it to malfunction.
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Do not turn the ArrayMasStor off by unplugging the AC power cord from the rear
panel. This may result in data loss. The ArrayMasStor’s firmware is designed to
detect the status of the power switch and synchronize the data in the cache and the
drives before shutdown. To control the power from the AC line, send a ‘synchronize
cache’
1
command from the host computer to the ArrayMasStor.
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When unplugging the AC power cord, leave one minute further before plugging it
again. This may prevent fuse damage.
IMPORTANT !
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For optimum performance, the total length of the SCSI bus should be as short as
possible. The total cable length must be less than 1.5 m for single-ended mode and
12m for LVD mode.
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A maximum of two host computers can be connected to the ArrayMasStor in a dual
host configuration.
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Set the ArrayMasStor’s UNIX
2
C/H/S mode before connecting it to the operating
systems shown below. Changing the UNIX C/H/S mode after installation may cause
data loss.
Solaris
3
(SPARC)
2.X
IRIX
4
5.X
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The backlight on the liquid crystal display (LCD) turns off automatically when the
operation buttons are not used for a period of time. The backlight will turn on when
the operation button is pressed. The backlight will stay on when a drive fails, when
the ArrayMasStor is in data reconstruction mode, and during data initialization.
1
A SCSI command which ensures that logical blocks in the cache have their most recent data
value recorded in the drives.
2
UNIX has two known standards, System V by AT&T and BSD4.x by Berkeley University.
3
Solaris™ and Spark™ is a Trademark of SUN Microsystems.
4
IRIX ™ is a Trademark of Silicon Graphics Inc.