Messages in this thread | | | Date | Sat, 5 Jun 1999 23:32:56 +0100 (GMT) | From | Riley Williams <> | Subject | Re: file size limit |
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Hi Jan.
>> {Sigh} Never having had disks big enough to hit that limit, I >> wasn't aware of it. However, would I be right in thinking the >> said limit goes up if one uses 4k blocks? If so, what to?
> Yes.
> With 4KB blocks you can address 1024*1024*1024*4096 bytes = 4TB > in ext2.
Let's see if I've understood that correctly:
Block size Can address Total Formula ~~~~~~~~~~ ~~~~~~~~~~~ ~~~~~ ~~~~~~~ 1k 256*256*256*1024 16G (1k)^4/64 4k 1024*1024*1024*4096 4T (4k)^4/64
Presumably...
2k 512*512*512*2048 256G (2k)^4/64 8k 2048*2048*2048*8192 64T (8k)^4/64
If so, then for any given block size B, we can address (B^4)/64 blocks using the ext2 file system?
Would I also be right in thinking that if we were able to do one more level of indirect block, we would multiply the capacities by B/4 in each case, giving capacities of 4T, 64T, 1E and 16E for ext2 file systems using 1k, 2k, 4k and 8k blocks respctively?
Best wishes from Riley.
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