running xfs_repair on large partitions
Hello,
1) it would be nice to have a way to know xfs_repair's version (-V ?), when using it from a rescue disk I'm never sure if I should get a newer one.
2) on a 32bit system, using xfsprogs version 2.9.0 , it seems xfs_repair will fail if its process exceeds 4G. Is that right? Is there a way to circumvent that limitation?
Thanks,
Le Wed, 10 Oct 2007 16:33:38 +0200 vous écriviez:
Quoted 3 lines
1) it would be nice to have a way to know xfs_repair's version (-V ?), when using it from a rescue disk I'm never sure if I should get a newer one.
Did you try "xfs_repair -V" as you suggest? On my system, it replies with the version...
Quoted 3 lines
2) on a 32bit system, using xfsprogs version 2.9.0 , it seems
xfs_repairwill fail if its process exceeds 4G. Is that right? Is there a way to circumvent that limitation?
No, this is precisely what 32 bits mean. A 32 bits process can't address more than 2^32 bits, which is 4GB. However I'm surprised you have this problem; I've xfs_repaired up to 16TB filesystem (maximum manageable with a 32 bits kernel ) without such problem.
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Since we're all here, we must not be all there. -- Bob "Mountain" Beck
Quoted 9 lines · Emmanuel Florac
Le Wed, 10 Oct 2007 16:33:38 +0200 vous écriviez:
Quoted 3 lines
1) it would be nice to have a way to know xfs_repair's version (-V ?), when using it from a rescue disk I'm never sure if I should get a newer one.
Did you try "
xfs_repair-V" as you suggest? On my system, it replies with the version...
Quoted 6 lines
Quoted 3 lines
2) on a 32bit system, using xfsprogs version 2.9.0 , it seems
xfs_repairwill fail if its process exceeds 4G. Is that right? Is there a way to circumvent that limitation?No, this is precisely what 32 bits mean. A 32 bits process can't address more than 2^32 bits, which is 4GB.
I think it's 2GB for a process by default on linux, because the other 2GB is used by the kernel. The split is configurable IIRC.
Quoted 3 lines
However I'm surprised you have this
problem; I'vexfs_repairedup to 16TB filesystem (maximum manageable with a 32 bits kernel ) without such problem.
Memory usage depends on the number of inodes in the filesystem as well.
Cheers,
Dave.
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Dave Chinner Principal Engineer SGI Australian Software Group