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Hello all,

Recently built some new systems that are connected to fiber channel storage. I noticed some very strange behavior with mkfs. The system is running RedHat AS 4.0, AMD 64, and is using Qlogic QL210FC HBA's.

When creating an EXT2/EXT3 file system with any block size, LUN's over 200Gig seem to run the system out of memory. At first I thought it was a fluke. I was SSH'd into the system and was disconnected. The second time around I watched dmesg and saw the kernel flip because it ran out of memory and swap space.

Quite honestly, I don't know that I have ever made a very large filesystem w/ Redhat (larger than 100Gig). I have 8 LUN's @ 200G ea, and ended up putting them in LVM - after that it worked fine....?

Has anybody else run into this issue?