Background: I need to extend a RAID 1 volume from a live Proxmox/Debian server that has a LSI SAS 2108 MegaRAID card, from 1TB to 2TB, I did this on a test environment albeit it was with a different Raid card, and my procedure was replacing each drive one at a time while waiting for the volume to rebuild each time, once that was finished I expanded the RAID 1 volume and after it reconfigured Proxmox recognized the bigger drive. I then created a new partition with the free space and added it to the proxmox /dev/pve/data lvgroup group and expanded that volume. Everything went great didn't even have to unmount dev/pve/data and consequently reboot the VMs.
I started doing this on the live server, already replaced each disk seperatly and than expanded the logical RAID 1 drive. Currently the server has 1 RAID 1 Volume showing up as 2TB on the MegaRAID Storage Manager.
However when I move over to the Debian/Proxmox OS to create the new partition with the free space I noticed the extra space is not appearing, neither in fdisk or parted. The weird thing though is that it does appear in smartctl. Here is the output for the commands:
# fdisk -l /dev/sda WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/sda: 999.0 GB, 998999326720 bytes 255 heads, 63 sectors/track, 121454 cylinders, total 1951170560 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sda1 1 1951170559 975585279+ ee GPT
# (parted) print free /dev/sda Model: SMC SMC2108 (scsi) Disk /dev/sda: 999GB Sector size (logical/physical): 512B/512B Partition Table: gpt Disk Flags: Number Start End Size File system Name Flags 17.4kB 1049kB 1031kB Free Space 1 1049kB 2097kB 1049kB Grub-Boot-Partition bios_grub 2 2097kB 136MB 134MB fat32 EFI-System-Partition boot, esp 3 136MB 999GB 999GB PVE-LVM2-Partition lvm 999GB 999GB 1032kB Free Space
# smartctl -i /dev/sda smartctl 5.41 2011-06-09 r3365 [x86_64-linux-2.6.32-48-pve] (local build) Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net Vendor: SMC Product: SMC2108 Revision: 2.13 User Capacity: 1,998,998,994,944 bytes [1.99 TB] Logical block size: 512 bytes Logical Unit id: 0x600304801b0f130120406495107d7c01 Serial number: 00017c7d109564402001130f1b800403 Device type: disk Local Time is: Sat Nov 3 13:02:42 2018 WET Device does not support SMART
Notice how it detects it as 2TB. Does anyone why parted and fdisk don't recognize the extra space? Is it possible that I need to reboot the server for it to be detected? I'm trying to avoid rebooting it but if it's necessary I can still do it. I'll be honest i'm not sure if I did reboot the server on the test environment, it's possible I did although I don't think that i did.
Any help would be greatly appreciated.