Andreas Dilger wrote:
On Jun 09, 2006 13:04 -0500, Matthew Frost wrote:
Alex Tomas wrote:
sorry, I disagree. for example, NUMA isn't default and shouldn't be.
but we have it in the tree and any one may choose to use it.
NUMA is designed to cope with a hardware feature, which not everybody
has. Filesystem upgrades are not qualitatively similar; it does not
depend on one's hardware design as to whether one uses ext3, let alone
extents. Your logic is faulty.
If you have a > 8TB block device (which is common in large RAID devices
today, will be a single disk in a couple of years) then it is important
that your filesystem work with this block device.
If ext2 and ext3 didn't support > 2GB files (which was a filesystem
feature added in exactly the same way as extents are today, and nobody
bitched about it then) then they would be relegated to the same status
as minix and xiafs and all the other filesystems that are stuck in the
"we can't change" or "we aren't supported" camps.
PRECISELY. So you should stop modifying a filesystem whose design is
admittedly _not_ modern!
ext3 is already essentially xiafs-on-life-support, when you consider
today's large storage systems and today's filesystem technology. Just
look at the ugly hacks needed to support expanding an ext3 filesystem
online.
Jeff
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