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тАО12-07-2005 03:25 PM
тАО12-07-2005 03:25 PM
Do I need to partition LUNs before placing them in LVM
Based on serviceguar Linux manual, looks I need to use fdisk to partition shared LUNs (for example, EVA LUNs) and set type to 8e before placing them in LVM. Is that true? Can I just placing LUNs device name such as /dev/sda in pvcreate command?
Thanks,
Ming
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тАО12-07-2005 03:35 PM
тАО12-07-2005 03:35 PM
Re: Do I need to partition LUNs before placing them in LVM
If HP recommends it, it's reasonable to follow that recommendation out of support concerns.
Otherwise pvcreate /dev/rsda should do just fine in my opinion.
(Note I used rsda here, at least in my HP-UX environment pvcreate wants a raw device opposed to vgcreate, etc., I think I remember it was the same on linux.)
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тАО12-07-2005 10:49 PM
тАО12-07-2005 10:49 PM
Re: Do I need to partition LUNs before placing them in LVM
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тАО12-08-2005 12:16 AM
тАО12-08-2005 12:16 AM
Re: Do I need to partition LUNs before placing them in LVM
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тАО12-08-2005 12:32 AM
тАО12-08-2005 12:32 AM
Re: Do I need to partition LUNs before placing them in LVM
You cannot use /dev/sda, you need to use a partition. You can create just one primary partition and use pvcreate /dev/sda1.
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тАО12-08-2005 01:05 AM
тАО12-08-2005 01:05 AM
Re: Do I need to partition LUNs before placing them in LVM
After checking LVM how-to, I think for LVM1, we need to use fdisk, but for LVM2, it is not necessary. But this LVM how-to just cover LVM on Linux, not on Serviceguard/LX, so I still not sure if I need to partition LUNs on Serviceguard/LX.
Thanks,
Ming
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тАО12-08-2005 02:43 AM
тАО12-08-2005 02:43 AM