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Mirro meaning and test

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Operating Systems Solaris Mirro meaning and test
# 1  
Old 07-08-2008
Mirro meaning and test
Problem:
i have two HDD one on primary SCSI port and the second one on the secondary SCSI port and i make mirror with the following commands:
dft format_disk esp1 scsi3
dft create_sys
dft mirror_sys
and the mirror operation successfully finished but when i rebooting the station with only one HDD which on secondary SCSI bus "to test mirror sytem healty" and turn off the HDD which on primary SCSI bus the booting system crash and there is no system, SO i tried to open the primary one and rebooting the station again i found the booting system crash also on primary one and there is no system.
My Questions is:
1-what is the mean of mirror system?
2-is this mirroring command is true or false?
3-is this test is right or not? if not what is the right one?
thanks Smilie
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LEARN ABOUT NETBSD

oosiop

OOSIOP(4)						   BSD Kernel Interfaces Manual 						 OOSIOP(4)

NAME

     oosiop -- Symbios/NCR 53C700 SCSI driver

SYNOPSIS

   arc
     oosiop* at jazzio?

   hp700
     oosiop0 at gsc?

     scsibus* at oosiop?

DESCRIPTION

     The oosiop driver provides support for the Symbios/NCR 53C700 SCSI controller chip.

     For the Symbios/NCR 53C710 SCSI host adapters, use the osiop(4) driver.

     For the Symbios/NCR 53C8xx PCI SCSI host adapters, use the siop(4) or esiop(4) driver.

SEE ALSO

     cd(4), ch(4), esiop(4), intro(4), osiop(4), scsi(4), sd(4), siop(4), ss(4), st(4), uk(4), scsipi(9)

HISTORY

     oosiop driver first appeared in NetBSD 2.0.

AUTHORS

     The oosiop driver was originally written by Shuichiro URATA for the arc port.  Izumi Tsutsui modified the driver to make it really machine
     independent for hp700.

BSD
								   April 6, 2003							       BSD