Parted, LVM Y XFS: Redimensionado Particiones

Este es un buen motivo para escribir un post. Hoy he dejado de usar definitivamente fdisk y ahora uso parted lo cual, es un salto cualitativo.
Y como tenia que redimensionar un par de nodos de Hadoop, desde la particion del disco hasta el FS pasando por el LVM, que mejor que escribirlo en un post :)

Vamos al lio, seleccionar vuestra victima, ssh dentro y empezamos

1. Vamos a parted y escribirmos resizepart

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   DEV root@hadoop-2:/home/me# parted GNU Parted 3.1 Using /dev/sda Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) version GNU Parted 3.1 Copyright (C) 1998 - 2006 Free Software Foundation, Inc. This program is free software, covered by the GNU General Public License. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. (parted) rescue align-check disk_set disk_toggle help mklabel mkpart mktable name print quit rescue rm select set toggle unit version (parted) exit

2. Whoopps…..resizepart parece que no existe y solo esta rescue…
   Actualiza a la ultima version :)

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   ... Resolving Dependencies --> Running transaction check ---> Package parted.x86_64 0:3.1-28.el7 will be updated ---> Package parted.x86_64 0:3.1-29.el7 will be an update ...

3. Ahora si….volvemos a parted

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   <<< NEW-DEV >>> root@hadoop-2:/home/nicolast# parted GNU Parted 3.1 Using /dev/sda Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) unit b (parted) print free Model: VMware Virtual disk (scsi) Disk /dev/sda: 214748364800B Sector size (logical/physical): 512B/512B Partition Table: msdos Disk Flags: Number Start End Size Type File system Flags 32256B 1048575B 1016320B Free Space 1 1048576B 1074790399B 1073741824B primary xfs boot 2 1074790400B 42949672959B 41874882560B primary lvm 3 42949672960B 107374182399B 64424509440B primary lvm 4 107374182400B 171798691839B 64424509440B primary lvm 171798691840B 214748364799B 42949672960B Free Space (parted)

4. cambiamos a unit b para ver los Bytes y redimensionamos la particion 4…

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   (parted) resizepart 4 214748364799B (parted) print free Model: VMware Virtual disk (scsi) Disk /dev/sda: 214748364800B Sector size (logical/physical): 512B/512B Partition Table: msdos Disk Flags: Number Start End Size Type File system Flags 32256B 1048575B 1016320B Free Space 1 1048576B 1074790399B 1073741824B primary xfs boot 2 1074790400B 42949672959B 41874882560B primary lvm 3 42949672960B 107374182399B 64424509440B primary lvm 4 107374182400B 214748364799B 107374182400B primary lvm (parted)

5. Comprobamos que efectivamente, ya tenemos la particion redimensionada; Vamonos de aqui a los volumenes…

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   <<< NEW-DEV >>> root@hadoop-2:/home/nicolast# pvdisplay --- Physical volume --- PV Name /dev/sda2 VG Name cl PV Size <39.00 GiB / not usable 3.00 MiB Allocatable yes (but full) PE Size 4.00 MiB Total PE 9983 Free PE 0 Allocated PE 9983 PV UUID Rq1dIO-PtRe-Ua2A-sgGb-QPwm-UyD4-GNuHuV --- Physical volume --- PV Name /dev/sda3 VG Name cl PV Size 60.00 GiB / not usable 4.00 MiB Allocatable yes (but full) PE Size 4.00 MiB Total PE 15359 Free PE 0 Allocated PE 15359 PV UUID ybGtAm-Xkbx-Gnx5-BDAi-tLAT-f85x-xqMddu --- Physical volume --- PV Name /dev/sda4 VG Name cl PV Size 60.00 GiB / not usable 4.00 MiB Allocatable yes PE Size 4.00 MiB Total PE 15359 Free PE 10239 Allocated PE 5120 PV UUID ZPWYYD-h1jW-jPYt-yBVG-tyM9-Ue68-LwVitX

6. Ahora vamos agrandar el volumen fisico (PV) /dev/sda4

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   <<< NEW-DEV >>> root@hadoop-2:/home/nicolast# pvresize /dev/sda4 Physical volume "/dev/sda4" changed 1 physical volume(s) resized / 0 physical volume(s) not resized

7. Y hacemos lo propio con el Volumen (LV) pero primero miramos cual es el que queremos

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   <<< NEW-DEV >>> root@hadoop-2:/home/nicolast# lvdisplay --- Logical volume --- LV Path /dev/cl/var LV Name var VG Name cl LV UUID 72OFxo-afGU-q32Z-Mmxa-wK9k-kSwS-pVbviw LV Write Access read/write LV Creation host, time localhost.localdomain, 2017-02-17 09:49:41 +0000 LV Status available # open 1 LV Size 24.11 GiB Current LE 6173 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 8192 Block device 253:4 --- Logical volume --- LV Path /dev/cl/hadoop LV Name hadoop VG Name cl LV UUID 2xd80b-B9cK-HX0E-A9b3-jIsD-IvJa-lll3PP LV Write Access read/write LV Creation host, time hadoop-2.dev1.knockout.local, 2017-08-29 13:11:57 +0000 LV Status available # open 1 LV Size <60.01 GiB Current LE 15362 Segments 2 Allocation inherit Read ahead sectors auto - currently set to 8192 Block device 253:5

8. Vamos a por el /dev/cl/hadoop, asi que ejecutamos este comando:lvresize -l +100%FREE {{ volume }}

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   <<< NEW-DEV >>> root@hadoop-2:/home/nicolast# lvresize -l +100%FREE /dev/cl/hadoop Size of logical volume cl/hadoop changed from <60.01 GiB (15362 extents) to 140.00 GiB (35841 extents). Logical volume cl/hadoop successfully resized.

9. Y ahora toca agrandar el sistema de ficheros, que en nuestro caso es XFS

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   <<< NEW-DEV >>> root@hadoop-2:/home/nicolast# xfs_growfs /dev/mapper/cl-hadoop meta-data=/dev/mapper/cl-hadoop isize=512 agcount=4, agsize=3932672 blks = sectsz=512 attr=2, projid32bit=1 = crc=1 finobt=0 spinodes=0 data = bsize=4096 blocks=15730688, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 ftype=1 log =internal bsize=4096 blocks=7681, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 data blocks changed from 15730688 to 36701184

10. Listo! ya tenemos la particion, volumen y fs agrandado.