On Fri, 23 Apr 1999, Benno Senoner wrote:
Helge Hafting wrote:
diring heavy writes on the raid array, I disconnected the power hdb for
example.
.
.
now you can reconnect the disk
not sure if it's a good idea to do this with any disk interface that
not's designed for it. i have a DEC paper somewhere about SCSI, and
it spends a lot of time on hot swap issues. Hot swap can be extremely
bad for an interface physically and electrically. eg, SCA and other
proprietary scsi hot-swap interconnects are designed specifically
with hot swap in mind, and even still (according to the DEC paper)
there are non-insignificant risks to hot swapping a SCA device. Most
of which relate to the timing of the (de)coupling of power lines
relative to ground lines. (IIRC).
(the copyright allows redistribution for non-commercial, educational
purposes, so i could perhaps scan it in, if anybody's interested.)
I know that there are disks where you must reboot to ensure that the new
partition table
is updated properly)
to partition a device it must not be in use in anyway. ie no swap on
it. no mounted filesystems. then it should work fine.
eg, if parts of the device are mounted and you repartition the disk,
re-reading of the partition table will fail, and you need to reboot
for the change to take effect.
i once accidently deleted the home partition, and i had no backup.
luckily it was mounted, so i could still copy the data over to
another disk. (i couldn't recontruct the original table).
regards,
--
Paul Jakma
[EMAIL PROTECTED] http://hibernia.clubi.ie
PGP5 key: http://www.clubi.ie/jakma/publickey.txt
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