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тАО11-03-2004 03:18 AM
тАО11-03-2004 03:18 AM
Hi,
suppose I have an MSA30 with 10x36GB drives in split bus mode attached to 2 channels of the raid controller (5 disks on each channel) and want to create a big LUN in RAID1+0 across all disks *and* make sure that the mirrored stripe is on the other channel.
What would be the corrrect saconfig syntax?
saconfig -R 1+0 -p 1:0 -p 2:0 -p 1:1 -p 2:1 -p 1:2 -p 2:2 -p 1:3 -p 2:3 -p 1:4 -p 2:4
or maybe
saconfig -R 1+0 -p 1:0 -p 1:1 -p 1:3 -p 1:4 -p 1:5 -p 2:0 -p 2:1 -p 2:2 -p 2:3 -p 2:4
NO guesswork please. man page and install guide do not help...
Regards,
Bernhard
suppose I have an MSA30 with 10x36GB drives in split bus mode attached to 2 channels of the raid controller (5 disks on each channel) and want to create a big LUN in RAID1+0 across all disks *and* make sure that the mirrored stripe is on the other channel.
What would be the corrrect saconfig syntax?
saconfig -R 1+0 -p 1:0 -p 2:0 -p 1:1 -p 2:1 -p 1:2 -p 2:2 -p 1:3 -p 2:3 -p 1:4 -p 2:4
or maybe
saconfig -R 1+0 -p 1:0 -p 1:1 -p 1:3 -p 1:4 -p 1:5 -p 2:0 -p 2:1 -p 2:2 -p 2:3 -p 2:4
NO guesswork please. man page and install guide do not help...
Regards,
Bernhard
Solved! Go to Solution.
3 REPLIES 3
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тАО11-03-2004 12:46 PM
тАО11-03-2004 12:46 PM
Solution
The order in saconfig doesn't matter. When the controller gets the list of disks, it orders them and divides them into two groups. Disks in the first half of the list are mirrored to the ones in the second half of the list.
In other words, as long as you have even numbers of disks on each channel, it will always mirror across channels.
In other words, as long as you have even numbers of disks on each channel, it will always mirror across channels.
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тАО11-03-2004 07:11 PM
тАО11-03-2004 07:11 PM
Re: A7143A Raid160 configuration
Ron,
excellent!
Regards
Bernhard
excellent!
Regards
Bernhard
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тАО11-03-2004 07:24 PM
тАО11-03-2004 07:24 PM
Re: A7143A Raid160 configuration
Thanks Ron
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