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11-25-2011 09:54 AM
11-25-2011 09:54 AM
HP ACU vs Windows Disk Management
Hi!
Is it better to split a RAID-1 and RAID-5 into multiple Logical Drives within HP ACU or Windows Disk Management?
Secondly, can splitting RAID-1 and RAID-5 into multiple Logical Drives degrade performance?
Thanks.
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11-27-2011 04:05 AM
11-27-2011 04:05 AM
Re: HP ACU vs Windows Disk Management
Creating logical volumes should not degrade performance. They all share the caches.
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11-28-2011 07:06 AM - edited 11-28-2011 07:29 AM
11-28-2011 07:06 AM - edited 11-28-2011 07:29 AM
Re: HP ACU vs Windows Disk Management
Sorry! my question was wrong. It should have been like this:
I have created one Array with 2 Hard Disks 900GB each and another array with 4 Hard disks 900GB. Now i need to create Logical Volumes which will be RAID-1 and RAID-5 respectivily.
Is it better to create a single Logical Drive for RAID-1 and a single for RAID-5 and assign full space to them then create multiple partitions during windows installation or from Windows disk management or split these arrays into multiple Logical Drives with HP ACU and distribute space among them?
Which one is better and which one is better for a Hyper-V server if i need to install the Host OS on one RAID-1 Logical Drive and Guest OSs on other RAID-1 Logical Drive?
Please checked the attached.
Thanks.
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11-28-2011 08:29 AM
11-28-2011 08:29 AM
Re: HP ACU vs Windows Disk Management
Hi, I'd check out the restrictions for resizing logical drives. Like in the picture you showed, can you resize all logical drives?
If you only have two larger logical drives then you don't have to worry about changing the size of the arrays or logical drives.
I'd say it's easier to resize disks/files (located on a logical drive) that the virtual machines use rather than resizing logical drives.
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11-28-2011 09:10 AM
11-28-2011 09:10 AM
Re: HP ACU vs Windows Disk Management
So you mean it is better to keep one Logical Volume as RAID-1 and one as RAID-5 and then partition them further within windows if required for virtual machines operating systems?
Did i understand correctly?
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11-28-2011 11:17 AM
11-28-2011 11:17 AM
Re: HP ACU vs Windows Disk Management
I don't know about the requirements of hyper-v or such, or which is better or not. There might be best practices documents for this.
But I suppose you might want to constrain the space of virtual machines if they can grow dynamically.
Which to do it might also have something to do with which you are most used to. Are you more comfortable/used to managing partitions within windows? Maybe that's a good reason alone to use that instead of logical drives.