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тАО02-18-2010 09:28 PM
тАО02-18-2010 09:28 PM
1) to add the new 9 disks on the same disk group (obtaining a 71 disks disk group of different size),
2) or to create a new disk group containing only the 9 disks of 146 GB size?
The LUN are presented to a two node service guard cluster (OS HP-UX 11.23, LVM). I have to extend an LVM Volume Group (vgextend) with six Logical Volume (lxextend) then I have to extend the six file system interested.
Anyone can help me to chose the better solution to preserve performance?
Thank you very much
Solved! Go to Solution.
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тАО02-19-2010 01:33 AM
тАО02-19-2010 01:33 AM
Solutionand the best practice for perfromance when it comes to EVA always try to have less Disk Group and more Disk in a disk group
cheers
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тАО02-19-2010 02:35 AM
тАО02-19-2010 02:35 AM
Re: Add disks to an EVA 5000 to preserve performance
When putting disks of different size in a disk groupe.
The EVA will reserver the space from 2 or 4 (Depends on the disk protection level) of the largest disk's in the disk groupe for disk failure.
BR
/jag
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тАО02-25-2010 06:33 AM
тАО02-25-2010 06:33 AM
Re: Add disks to an EVA 5000 to preserve performance
thank you very much for the useful information and for spending your valuable time.
Best Regards
Antonio
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тАО02-25-2010 06:44 AM
тАО02-25-2010 06:44 AM
Re: Add disks to an EVA 5000 to preserve performance
Is the EVA very near full capacity? this can degrade the performance. If so, you can add a diskgroup with only the 146 Gb disks.