> I don't publish the patched because aren't in a good shape. However I > really like the output. The example is a filesystem based on three > disks of 3GB. > > It is clear that: > - - RAID0 uses all the disks > - - RAID1 uses two different disks > > Comments are welcome. > > Known bugs: > - - if a filesystem uses a disk but there is any chunk, the disk is not > shown (solvable) > - - this command need root capability (I use the BTRFS_IOC_TREE_SEARCH > to get the chunk info; so that is unavoidable) > > > ghigo@emulato:~$ sudo ./btrfs fi df /mnt/btrfs1/ > [sudo] password for ghigo: > Path: /mnt/btrfs1 > Summary: > Disk_size: 9.00GB > Disk_allocated: 1.83GB > Disk_unallocated: 7.17GB > Used: 284.00KB > Free_(Estimated): 6.76GB (Max: 8.54GB, min: 4.96GB) > Data_to_disk_ratio: 75 % > > Allocated_area: > Data,RAID0: Size:921.75MB, Used:256.00KB > /dev/vdc 307.25MB > /dev/vdb 307.25MB > /dev/vdd 307.25MB > > Data,Single: Size:8.00MB, Used:0.00 > /dev/vdb 8.00MB > > System,RAID1: Size:8.00MB, Used:4.00KB > /dev/vdd 8.00MB > /dev/vdc 8.00MB > > System,Single: Size:4.00MB, Used:0.00 > /dev/vdb 4.00MB > > Metadata,RAID1: Size:460.94MB, Used:24.00KB > /dev/vdb 460.94MB > /dev/vdd 460.94MB > > Metadata,Single: Size:8.00MB, Used:0.00 > /dev/vdb 8.00MB > > Unused: > /dev/vdb 2.23GB > /dev/vdc 2.69GB > /dev/vdd 2.24GB
Couple minor things, in order of personal opinion of severity: * Devices should be listed in a consistent order; device names are just too consistently similar * System chunks shouldn't be listed between data and metadata; really, they're just noise 99% of the time anyway * I think it may be more useful to display each disk, with the profiles in use underneath. With a larger number of disks, that would make it _much_ easier to tell at-a-glance what is currently on a disk (that I may want to remove, or which I may suspect to be unreliable). * I'd rename "Unused" to "Unallocated" for consistency with the section title * (and I still detest the_underscores_between_all_the_words; it doesn't make parsing significantly easier, and it's an eyesore) * Three coats of blue paint plus a clear-coat is the One True Paint-Job. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
