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Alignment for Linux
Hey everyone.
I was wondering if anyone knew if we have to align partitions in either 32 or 64 bit versions of RedHat 4.0 (RHEL 4). I have heard rumors in the past that you do, but my customer is saying this is not the case.
Any input is appreciated.
Thanks,
Raza
I was wondering if anyone knew if we have to align partitions in either 32 or 64 bit versions of RedHat 4.0 (RHEL 4). I have heard rumors in the past that you do, but my customer is saying this is not the case.
Any input is appreciated.
Thanks,
Raza
dynamox
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October 27th, 2007 09:00
emc143003
xe2sdc
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October 29th, 2007 01:00
Anonymous
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October 29th, 2007 11:00
It looks like from primus this needs to be done for any Intel based Linux installations, but I guess the big questions are:
1) Does this also apply to IA64 Architecture?
2) Will this also be the case for a Symmetrix?
Thanks for the responses so far
Also, just for refrence, to do an alignment on Linux would I use the fdisk command like this?
fdisk /dev/emcpowerah
and answer the questions from there.
buffcoat
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October 29th, 2007 14:00
fdisk /dev/emcpower*
x # expert mode
b # adjust starting block number
1 # choose partition 1
128 # set to 128, our stripe element size
w # write the new partition
xe2sdc
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October 30th, 2007 00:00
Either symm or DMX require this alignment since both have 32k tracks and the bios creates a "gap" in the first track that render the whole disk "unaligned" in either 32K or 64K tracks worlds, AFAIK. That's why we suggest to align the partitions on a 128K boundary. This will fit symms, dmx and clariions
I'm neither a linux guru nor an Intel/BIOS guru ...
-s-