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тАО11-30-2001 02:19 PM
тАО11-30-2001 02:19 PM
Thank you,
Solved! Go to Solution.
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тАО12-01-2001 11:40 AM
тАО12-01-2001 11:40 AM
Re: Surestore SC10 - mirror help
You can mirror via sam, but you do need MirrordiskUX installed.
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тАО12-01-2001 12:05 PM
тАО12-01-2001 12:05 PM
Re: Surestore SC10 - mirror help
Yes you can mirror across one controller,
as this will give you at least some redundancy.
Yes you will need to purchase MirrorDisk/UX
to do the job. Unfortunately there is
not a trial version that you could load
unlike some other products HP offer.
-Michael
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тАО12-01-2001 02:35 PM
тАО12-01-2001 02:35 PM
SolutionYou need to install Mirror Disk/UX which you need to buy a license for and install it from the applications CD that come with your HPUX media.
A quick howto to mirror will be...
assume say with 2 disks c1t6d0 c1t5d0
assume vg name is vgmirror
so
pvcreate both disks
vgcreate vgmirror containing the two disks
create a logical volume on one disk by using lvcreate then lvextend the size you require.
then assume lvname is lvolmirror. what you do is lvextend -m1 /dev/vgmirror/lvolmirror /dev/dsk/c1t5d0 and it will create a mirror of lvolmirror on the other disk.
You can do all this with sam if you want although I would suggest command line for better flexibility
good luck
stefan
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тАО12-02-2001 11:21 AM
тАО12-02-2001 11:21 AM
Re: Surestore SC10 - mirror help
Thanks for the help,
Sally
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тАО12-02-2001 06:18 PM
тАО12-02-2001 06:18 PM
Re: Surestore SC10 - mirror help
'sam' can do the job for you, but using
the command line is quite simple, and
you can learn something at the same time.
You can't mirror anything unless the
MirrorDisk/UX software is loaded first.
There are options within programs like
'lvextend' that will not work without
the filesets being loaded from MirrorDisk/UX
first.
If you have six disks (3 pairs) you could
use this scenario. If you can a second
controller is even better.
It wouldn't matter if the disks are JBOD's
or RAID/5 you can still mirror them.
If the disks are not added to the volume
group:
# pvcreate -f /dev/rdsk/c1t1d1 (for each disk)
# /usr/sbin/vgextend /dev/dsk/c1t1d0 (for each disk)
Once added or already added:
# lvextend -m1 /dev/vgxx/lvol1 /dev/dsk/c1t1d0 (new disk)
To check you can run this command beforehand
# vgdisplay -v /dev/yourvg
and look for the number of disks that each LV
has. Afterwards run the same command and this
should be be increased.
HTH
-Michael