Tuesday, September 2, 2014

Linux - making sense of all those attached devices

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intmdbshard-modb-s11-0001:~$ lsblk

NAME                       MAJ:MIN RM   SIZE RO TYPE   MOUNTPOINT

xvda1                      202:1    0     8G  0 disk   /
xvdb                       202:16   0    30G  0 disk
xvdf                       202:80   0   100G  0 disk
└─md0                        9:0    0 199.9G  0 raid10
  └─data (dm-0)            252:0    0 199.9G  0 crypt
    └─datavg-datalv (dm-1) 252:1    0 159.9G  0 lvm    /data
xvdg                       202:96   0   100G  0 disk
└─md0                        9:0    0 199.9G  0 raid10
  └─data (dm-0)            252:0    0 199.9G  0 crypt
    └─datavg-datalv (dm-1) 252:1    0 159.9G  0 lvm    /data
xvdh                       202:112  0   100G  0 disk
└─md0                        9:0    0 199.9G  0 raid10
  └─data (dm-0)            252:0    0 199.9G  0 crypt
    └─datavg-datalv (dm-1) 252:1    0 159.9G  0 lvm    /data
xvdi                       202:128  0   100G  0 disk
└─md0                        9:0    0 199.9G  0 raid10
  └─data (dm-0)            252:0    0 199.9G  0 crypt
    └─datavg-datalv (dm-1) 252:1    0 159.9G  0 lvm    /data

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intmdbshard-modb-s11-0001:/mnt$ df -h
Filesystem                            Size     Used      Avail     Use%       Mounted on
/dev/xvda1                            7.9G     7.3G     207M     98%         /
udev                                      3.7G     8.0K      3.7G      1%          /dev
tmpfs                                     1.5G     264K     1.5G     1%           /run
none                                      5.0M        0         5.0M     0%          /run/lock
none                                      3.7G        0          3.7G      0%          /run/shm
/dev/mapper/datavg-datalv  158G      18G      133G    12%          /data
/dev/xvdb                               30G     173M      28G     1%            /testingMount


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src:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-using-volumes.html

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