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тАО05-22-2003 01:16 AM
тАО05-22-2003 01:16 AM
How configure HP12H to RAID 5
I need to set my 12H autoraid to RAID 5,How to
do it
Best Regards
Ashan
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тАО05-22-2003 02:50 AM
тАО05-22-2003 02:50 AM
Re: How configure HP12H to RAID 5
Once a RAID Level has been selected, it cannot be changed dynamically. The RAID Level is only set when the LUN is created.
When binding a LUN, use the following command,..
amcfg -L
So you set the RAID Level at LUN Creation. Make sure you first have sufficient free disk for the 12H to build this RAID 5 config!
Share and Enjoy! Ian
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тАО05-22-2003 02:52 AM
тАО05-22-2003 02:52 AM
Re: How configure HP12H to RAID 5
The URL link to the manuals.
Share and Enjoy! Ian
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тАО05-22-2003 04:05 AM
тАО05-22-2003 04:05 AM
Re: How configure HP12H to RAID 5
the commands Ian sent (amcfg) are for FC60 disk arrays. Model 12H Autoraid uses 'arraycfg' Syntax.
Anyway, I think you can not set the Autoraid 12H to raid level 5. It is an Auto(!) raid, distributing the data automatically between Raid 5 and Raid 0/1, depending on free disk space and age of data. The Controllers ensure, that never less than 10% of data is in raid 0/1, because it has better performance.
Regards.
Tobias
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тАО05-22-2003 04:11 AM
тАО05-22-2003 04:11 AM
Re: How configure HP12H to RAID 5
Tobias is dead right, my commands were from the FC60 manual that found its way into my AutoRaid Documentation Folder.
My apologies for leading you astray.
Share and Enjoy! Ian
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тАО05-22-2003 08:11 AM
тАО05-22-2003 08:11 AM
Re: How configure HP12H to RAID 5
But newer VA disk arrays can be configured in RAID 0/1 mode or in AutoRAID mode.
12h can work in AutoRAID mode only
Eugeny
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тАО05-22-2003 08:27 AM
тАО05-22-2003 08:27 AM
Re: How configure HP12H to RAID 5
1) Turn off "Active Hot Spare".
2) Allocate all the available space as LUN's.
You will now instantly be 90% RAID5 / 10% RAID 1/0. This is the "dumb" way to configure an AutoRAID. You don't want RAID5; you want as much space as possible to be left in RAID 1/0 for performance.
If on the other hand, you want to maximize storage space (at the expense of performance) then follow the initial suggestions.
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тАО05-22-2003 08:27 AM
тАО05-22-2003 08:27 AM
Re: How configure HP12H to RAID 5
1) Turn off "Active Hot Spare".
2) Allocate all the available space as LUN's.
You will now instantly be 90% RAID5 / 10% RAID 1/0. This is the "dumb" way to configure an AutoRAID. You don't want RAID5; you want as much space as possible to be left in RAID 1/0 for performance.
If on the other hand, you want to maximize storage space (at the expense of performance) then follow the initial suggestions.
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тАО05-22-2003 08:27 AM
тАО05-22-2003 08:27 AM
Re: How configure HP12H to RAID 5
1) Turn off "Active Hot Spare".
2) Allocate all the available space as LUN's.
You will now instantly be 90% RAID5 / 10% RAID 1/0. This is the "dumb" way to configure an AutoRAID. You don't want RAID5; you want as much space as possible to be left in RAID 1/0 for performance.
If on the other hand, you want to maximize storage space (at the expense of performance) then follow the initial suggestions.
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тАО05-23-2003 12:08 AM
тАО05-23-2003 12:08 AM
Re: How configure HP12H to RAID 5
Regards
Ashan