Accusys ACS-75130 - Manual (Page 19)

English - 19
NOTE 2: When the 7500 is rebuilding the data and you shut
down the power, do not change any hard disks because
the 7500 will remember which disk is the source and
which is the target while rebuilding. It also keeps track
of the extent to which the data has been rebuilt. So if
you change a hard disk in this situation, data error
could be the result. For example: If you change the
target hard disk in this situation, the 7500 will
continue rebuilding the data from where it left off so
that the first amount of data will not be stored on this
new target disk. That means the new disk will not have
the data that was already copied onto the hard disk
that was replaced.
NOTE 3: Before powering off while the7500 is rebuilding
data, don’t unlock the drive carrier that has the source
hard disk, and then power on again. This would result
in the two hard disks being rejected. If you have
already had this happen to you, unlock the both hard
disks before you power on the 7500, and wait till you
hear the beeper. After that, lock the source hard disk
and power on. Then lock in the target disk and the
7500 will begin rebuilding the data from the very start.
If you have already finished all these steps, please
follow the “Online Rebuilding” to copy the important
data to the target disk.
NOTE 4: If your source hard disk is a UDMA 100 disk and it